Question 1

In humans,the central nervous system consists of the _____,which is housed in the _____ and the ______,which is housed in the _____.

Accepted Answer

A) peripheral nervous system; limbs; brain; skull 
B) brain; skull; spinal cord; vertebral column 
C) spinal cord; vertebral column; sensory neurons; limbs 
D) brain; vertebral column; spinal cord; skull 
A) peripheral nervous system; limbs; brain; skull 
B) brain; skull; spinal cord; vertebral column 
C) spinal cord; vertebral column; sensory neurons; limbs 
D) brain; vertebral column; spinal cord; skull

Question 2

The sodium-potassium pump is primarily responsible for

Accepted Answer

A) the resting potential. 
B) the action potential. 
C) the excretion of salts. 
D) the contraction of muscle fibers. 
E) maintaining isotonic water balance. 
A) the resting potential. 
B) the action potential. 
C) the excretion of salts. 
D) the contraction of muscle fibers. 
E) maintaining isotonic water balance.

Question 3

If a person steps on a tack their somatic system will take over and produce a reflex action.A reflex action

Accepted Answer

A) is an automatic,involuntary response. 
B) does not require the central nervous system. 
C) is normally controlled consciously. 
D) has no protective value. 
E) is only found in humans. 
A) is an automatic,involuntary response. 
B) does not require the central nervous system. 
C) is normally controlled consciously. 
D) has no protective value. 
E) is only found in humans.

Question 4

How do cholinesterase inhibitors improve the learning and memory of people who are suffering from Alzheimer's Disease?

Accepted Answer

A) Cholinesterase inhibitors will increase the levels of acetylcholine in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
B) Cholinesterase inhibitors will decrease the levels of acetylcholine in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
C) Cholinesterase inhibitors will increase the levels of testosterone in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
D) Cholinesterase inhibitors will decrease the levels of cerebral spinal fluid in the brain.This will decrease neural pressure associated with the brain regions associated with learning and memory. 
A) Cholinesterase inhibitors will increase the levels of acetylcholine in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
B) Cholinesterase inhibitors will decrease the levels of acetylcholine in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
C) Cholinesterase inhibitors will increase the levels of testosterone in the brain.This will increase the neural functioning in brain regions associated with learning and memory. 
D) Cholinesterase inhibitors will decrease the levels of cerebral spinal fluid in the brain.This will decrease neural pressure associated with the brain regions associated with learning and memory.

Question 5

What structure of the spinal cord carries motor impulses from the brain?

Accepted Answer

A) ventral root 
B) dorsal root 
C) dorsal root ganglion 
D) dorsal horn 
A) ventral root 
B) dorsal root 
C) dorsal root ganglion 
D) dorsal horn

Question 6

Which of the following features is NOT associated with Alzheimer's disease?

Accepted Answer

A) A loss of reasoning and memory. 
B) Plaques accumulate along the axons of the neurons in the brain. 
C) Neurofibrillary tangles surround the nucleus of the neural cells. 
D) The most common cause of dementia in older adults. 
E) All of these are features of Alzheimer's disease. 
A) A loss of reasoning and memory. 
B) Plaques accumulate along the axons of the neurons in the brain. 
C) Neurofibrillary tangles surround the nucleus of the neural cells. 
D) The most common cause of dementia in older adults. 
E) All of these are features of Alzheimer's disease.

Question 7

What structure in the mammalian brain is enlarged and is responsible for higher mental processes?

Accepted Answer

A) forebrain 
B) hindbrain 
C) midbrain 
D) cerebellum 
E) cerebrum 
A) forebrain 
B) hindbrain 
C) midbrain 
D) cerebellum 
E) cerebrum

Question 8

Information gathering from the environment by a vertebrate is aided by which of the following?

Accepted Answer

A) paired eyes,ears,and olfactory structures 
B) cephalization 
C) bilateral symmetry with a vast increase in the number of neurons 
D) All of the choices are information gathering aids. 
A) paired eyes,ears,and olfactory structures 
B) cephalization 
C) bilateral symmetry with a vast increase in the number of neurons 
D) All of the choices are information gathering aids.

Question 9

The peripheral nervous system consists of

Accepted Answer

A) nerves in the entire nervous system. 
B) ganglia. 
C) nerves and ganglia that lie outside the CNS. 
D) the brain and spinal cord. 
E) the brain,spinal cord,and nerves. 
A) nerves in the entire nervous system. 
B) ganglia. 
C) nerves and ganglia that lie outside the CNS. 
D) the brain and spinal cord. 
E) the brain,spinal cord,and nerves.

Exam 37: Neurons and Nervous Systems

In humans,the central nervous system consists of the _____,which is housed in the _____ and the ______,which is housed in the _____.

The sodium-potassium pump is primarily responsible for

If a person steps on a tack their somatic system will take over and produce a reflex action.A reflex action

How do cholinesterase inhibitors improve the learning and memory of people who are suffering from Alzheimer's Disease?

What structure of the spinal cord carries motor impulses from the brain?

Which of the following features is NOT associated with Alzheimer's disease?

What structure in the mammalian brain is enlarged and is responsible for higher mental processes?

Information gathering from the environment by a vertebrate is aided by which of the following?

The peripheral nervous system consists of

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