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What kind of experiment would test the effects of changing salt concentrations on regeneration of brain cells in Alzheimer patients?

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Answered by answersmine AT 22/10/2019 – 02:57 AM

A change in osmolarity of the solution where the cell line can be placed can be used for the same. Varying osmolarity solutions should be used and the effect of different salt concentrations can be sensed by observed shrinking/swelling of the cells, in different salt solutions. 

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Three endocrine glands located outside the brain

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Three endocrine glands located outside the brain

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The brain communicates with the rest of your body by _____.

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The brain communicates with the rest of your body by _____.

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The brain mass of a fetus can be estimated using the total mass of the fetus by the function b equals 0.22 m superscript 0.87b=0.22m0.87?, where m is the mass of the fetus? (in grams) and b is the brain mass? (in grams). suppose the brain mass of a 2323?-g fetus is changing at a rate of 0.240.24 g per day. use this to estimate the rate of change of the total mass of the? fetus, startfraction dm over dt endfraction dm dt.

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We are given
b = 0.22 m^0.87
db/dt = 0.24 g/day at b = 23 g

where
b is the brain mass of the fetus
m is the total mass of the fetus
db/dt is the rate of change of the brain mass of the fetus

We are asked to get the rate of change of the total mass of the fetus

First, we take the first derivative of the given equation with respect to time
db/dt = 0.22 (0.87) m^(0.87-1) dm/dt
Next, simplify and substitute the given values. So,
0.24 g/day = 0.22(0.87)(23)^(0.87 -1 ) dm/dt
Solving for dm/dt
dm/dt = 1.88 g/day

The rate of change of mass of the fetus is 1.88 g/day.

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A bruise like injury to the brain is known as a

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A bruise like injury to the brain is known as a

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Match the following parts of the brain with their functions. 1. cerebrum responsible for muscle coordination and balance 2. cerebellum responsible for speech, emotion, and memory 3. brain stem responsible for involuntary muscles like the heart

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Answer:

The correct match would be:

  1. Cerebrum – responsible for speech, emotion, and memory
  2. Cerebellum – responsible for muscle coordination and balance
  3. Brain stem – responsible for involuntary muscles like the heart

The brain can be divided into three main parts:

1. Cerebrum: It is the largest part of the brain. It can be divided into two halves termed as right and left hemisphere. It can also be divided into broad regions termed as lobes (frontal, parietal, temporal, and occipital lobe).

The main functions of the cerebrum include control of voluntary muscles, interpret information received from sensory receptors (touch, vision, hearing, vision), reasoning, learning, emotions, and speech.

2. Cerebellum: It is located below the occipital lobe in the back of the brain. The main function of the cerebellum is the coordination and precision of voluntary actions and the maintenance of posture and balance of the body.

3. Brain stem: It connects the brain with the spinal cord. It consists of the midbrain, pons, and medulla oblongata. It helps in controlling and coordinating involuntary movements like the heart, lungs, swallowing, breathing, sneezing et cetera.

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When harmful substances released from the liver reach the brain, they can cause __________?

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Answered by answersmine AT 22/10/2019 – 04:52 AM

When harmful substance released from the liver reach the brain, they can cause HEPATIC ENCEPHALOPATHY. This is a medical condition in which there is occurrence of confusion and alteration of consciousness as a result of liver failure. The effects of the disease include: depression, personality changes, mood difficulty, coordination problem, coma, death.

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Computer-generated color images of the brain that provide information about brain activity and glucose metabolism are produced by which brain imaging technique

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The answer to this question is the PET scan. Positron
Emission Tomography or PET scan is an imaging test that checks and trace for
diseases in the body. This also shows how the body organs is functioning /
working. The doctor can evaluate the function of the patients body by the 3D
color images produced by the PET Scan.  

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The specialization of the functioning of the two halves of the brain is called _____.

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Answered by answersmine AT 22/10/2019 – 05:27 AM

The specialization of the functioning of the two halves of the brain is called as lateralization, and it means that the two halves of the brain are not alike. The functional specializations are typical to each hemisphere and some neural functions are more dominant in one hemisphere of the brain. 

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Axons carrying sensory information to the brain may be found in?:

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Axons carrying sensory information to the brain may be found in?:

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When Gretchen starts being chased by a dog, her brain sends a signal to her muscles to run. Which neurons are at work? sensory neurons motor neurons voluntary neurons involuntary neurons

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Which is an example of how the peripheral nervous system helps the body maintain its internal environment? Muscles produce keratin so that hair can grow stronger. Sweat glands break down the food that is consumed. Muscles contract rapidly to produce heat on a cold day. The brain recalls information to help take a test.

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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1. cancers Alzheimer’s 2. disorders of body chemistry tuberculosis 3. degenerative disease of joints arthritis 4. degenerative disease affecting the heart holes in the heart 5. diseases due to physical and environmental agents arteriosclerosis 6. congenital and hereditary diseases diabetes 7. degenerative disease of the brain depression 8. mental diseases drowning 9. infectious diseases

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Answer – 
1. Social Environment 
2. Physical Environment
3. Individual LifeStyle 
4. Differential Susceptibilities 
5. Perception of Healthcare and to gain access/services
6. Reverse Causality

Reasoning – Under these or all points to underlying of illness to economic problems and depressions. 

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Alcohol begins to affect your brain when

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Not sure they are asking this, but it may well be:

Static frictional force can be from 0 to a maximum value. For instance, a book on your desk does not move, but the frictional force is zero. Then, when you try to move it, it doesn’t until a moment where it does. The maximum static force is a coefficient (mu_static) multiplied by the Normal force (that in turn is usually derived from the weight, but whichever it is).

Then, after set in motion, static friction does not apply. It is kinetic frictional force, whose formula is the same, but it is just the value (not between zero and a maximum value):

F_kinetic = mu_kinetic * Normal

What happens is that mu_kinetic < mu_static and the frictional force will be less!

Once in motion, it’s easy to keep it moving, right? Hope it helps!

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You are to create a story for a child of 5-6 years old. You will explain the brain and its functions to them. You need to use the following terms and explain their functions in simple terms. Use the format of a story to keep the child interested, and be sure to use illustrations. Add characters (Dora, Superman, etc.) to make the information fun.

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Answer:

1) Water has very high specific heat.

2) It expands when it freezes

3) ability to dissolve in ionic substances

4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.

Explanation:

1) Water molecules due to their high specific heat , undergo relatively less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.

2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby  creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.

3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance  can be dissolved in polar solvents only.

4) It is due to property of surface tension. Property  of surface tension results due to molecules of water near the surface experiencing a  net downward  force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.

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Certain inhaled anesthetic agents are thought to open cl- channels in the membranes f postsynaptic neurons in the brain, an effect that causes inhibitory local potentials. why might this action put a person "to sleep" during anesthesia?

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Certain inhaled anesthetic agents are thought to open cl- channels in the membranes f postsynaptic neurons in the brain, an effect that causes inhibitory local potentials. why might this action put a person “to sleep” during anesthesia?

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In order to process information from the external world, _____ receive input from the body and transfer the information to the brain through the spinal cord. motor neurons mirror neurons interneurons sensory neurons

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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To treat certain brain tumors, doctors can use small beams of _____ that are focused to kill only the tumor cells.

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The right answer is Transgenic organisms can produce a desired product that may benefit other organisms.

A transgenic organism contains DNA combining  stably integrated in all its cells. In other words, the organism, be it a plant, an animal or a microorganism, has a new piece of DNA embedded in it. a chromosome in each of its cells. This “new piece” of DNA usually contains a gene from another organism (plant, animal or other) that has been modified to be expressed in the new  organization. A transgenic organism may even possess the DNA of another organism of the same species. The inserted gene can be called the transgene.

Currently, diabetics are treated by injecting insulin from either a healthy human donor or cultures of genetically modified (transgenic) bacteria that secrete the protein.

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The _____ approach to psychological disorders primarily focuses on the brain, genetic factors, and neurotransmitter functioning as the sources of abnormality.

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1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

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Which line from the text shows why scientists continue to study yawning? One thing is certain: you are probably fighting the urge to yawn right about now. Other scientists believe, however, that yawning is a form of communication. One mystery that still remains unsolved is why we yawn—what makes us yawn and what purpose it serves. The theory is that yawning helps cool the brain, allowing it to work more efficiently.

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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During adolescence, the _____ matures before the _____ in the brain.

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During adolescence, the _____ matures before the _____ in the brain.

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Michael was subjected to much stress as an infant due to repeated episodes of family violence. now, as an adult, he shuts down emotionally whenever he starts to experience any type of stress. this response may be because during infancy stress hormones in his brain were

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Michael was subjected to much stress as an infant due to repeated episodes of family violence. now, as an adult, he shuts down emotionally whenever he starts to experience any type of stress. this response may be because during infancy stress hormones in his brain were

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When you want to write, your brain must send and receive information from your hand. What type of nerve is most likely responsible for passing the information from the brain to the hand?

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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If you show the audience the impact of brain injuries in child athletes and then tell how to improve the situation, you are using which organizational pattern?

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Answered by answersmine AT 22/10/2019 – 11:59 AM

The answer to this question is Problem and solution organizational pattern. In Problem and
solution organizational pattern it presents the problem and what caused the
problem then explains the possible solution for the problem. Using this kind of
organizational pattern, it can persuasive listeners and can tend to let the
audience believe in the solution that the person is implying.  

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Related questions


Self concept is how a child

For PF Students the answer is  SEES HIM- OR HERSELF

ANSWERED AT 22/10/2019 – 01:26 PM


QUESTION POSTED AT 22/10/2019 – 01:26 PM


Chelsa manufacturing co.’s static budget at 5,000 units of production includes $40,000 for direct labor and $5,000 for variable electric power. total fixed costs are $23,000. at 8,000 units of production, a flexible budget would show a. variable and fixed costs totaling $107,000 b. variable costs of $64,000, and $28,000 of fixed costs c. variable costs of $64,000, and $23,000 of fixed costs d. variable costs of $72,000, and $23,000 of fixed costs

Calculate variable cost per unit

40000/5000=8 per unit

And
5000/5000=1 per unit

Variable cost per unit=8+1=9 per unit

So variable cost at 8000 units is
8,000×9=72,000

Your answer is
d. variable costs of $72,000, and $23,000 of fixed costs

ANSWERED AT 22/10/2019 – 01:09 PM


QUESTION POSTED AT 22/10/2019 – 01:08 PM


In most work situations, people take more than they give. agree or disagree

Disagree. In most work situations people give more than they take. Many people put their heart and soul into their work to make sure their employer is getting the best out of them. Unfortunately, a lot of people are overworked but know that in the end and eventually, it will pay off for them. Sometimes you have to give and work hard for the end result to be a more relaxed work environment.

ANSWERED AT 21/10/2019 – 06:22 PM


QUESTION POSTED AT 21/10/2019 – 06:22 PM

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An illness that affects the brain and reduces a person’s ability to cope, to adjust to every day life changes, or to get along with others is called a(n)

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Depreciation=(equipment cost-salvage value)/useful life

Depreciation=(16,950−4,200)÷6
=2,125 per year

Book value after 3 years
=16,950−2,125×3
=10,575

Now find the amount of depreciation to be charged against the equipment during each of the remaining years of its useful life
Depreciation=(equipment cost-salvage value)/useful life

Depreciation=(10,575−1,695)÷3
=2,960

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