Question 1

Over a lifetime, the brain shrinks by about ________ percent.

Accepted Answer

A) 1 
B) 5 
C) 10 
D) 40 
A) 1 
B) 5 
C) 10 
D) 40

Question 2

Smoking exposes the nervous system to nicotine contained in cigarettes. Smokers experience a "buzz" from the nicotine, as it activates nicotinic receptors of ________ neurons.

Accepted Answer

A) muscarinic 
B) adrenergic 
C) cholinergic 
D) multipolar 
A) muscarinic 
B) adrenergic 
C) cholinergic 
D) multipolar

Question 3

When the flexor muscles of one arm contract in a withdrawal reflex, the extensor muscles of the other arm contract. This phenomenon is called

Accepted Answer

A) flexor extensor reflex. 
B) ipsilateral reflex. 
C) crossed extensor reflex. 
D) crossed flexor reflex. 
A) flexor extensor reflex. 
B) ipsilateral reflex. 
C) crossed extensor reflex. 
D) crossed flexor reflex.

Question 4

A traumatic brain injury (TBI)results from

Accepted Answer

A) an open head wound. 
B) mechanical force. 
C) an infection. 
D) poisoning. 
A) an open head wound. 
B) mechanical force. 
C) an infection. 
D) poisoning.

Question 5

The cardiac center, vasomotor center, and respiratory center are located in the ________ of the brainstem.

Accepted Answer

The answer of The cardiac center, vasomotor center, and respiratory...

Question 6

The ________ division of the autonomic nervous system decreases heart rate to return the body to ordinary, restful conditions.

Accepted Answer

The answer of The ________ division of the autonomic nervous...

Question 7

The dura mater is the outermost layer of the meninges.

Accepted Answer

A) True 
 B)False

Question 8

Spinal shock is a permanent loss of some of the spinal cord's functions.

Accepted Answer

A) True 
 B)False

Question 9

The ________ separates the cerebrum from the cerebellum.

Accepted Answer

A) lateral sulcus 
B) central sulcus 
C) longitudinal fissure 
D) transverse fissure 
A) lateral sulcus 
B) central sulcus 
C) longitudinal fissure 
D) transverse fissure

Question 10

Which of the following is not a function of the hypothalamus?

Accepted Answer

A) Regulation of body temperature 
B) Control of hunger and thirst 
C) Production of hormones 
D) Control of postural reflexes 
A) Regulation of body temperature 
B) Control of hunger and thirst 
C) Production of hormones 
D) Control of postural reflexes

Question 11

The brain waves most closely associated with mental activity are

Accepted Answer

A) alpha waves. 
B) beta waves. 
C) theta waves. 
D) delta waves. 
A) alpha waves. 
B) beta waves. 
C) theta waves. 
D) delta waves.

Question 12

The central nervous system (CNS)consists of

Accepted Answer

A) spinal and cranial nerves. 
B) the brain and spinal cord. 
C) the brain and cranial nerves. 
D) nerves in the upper and lower limbs. 
A) spinal and cranial nerves. 
B) the brain and spinal cord. 
C) the brain and cranial nerves. 
D) nerves in the upper and lower limbs.

Question 13

A soldier suffers a brain injury, and becomes unable to speak. The damage is likely in

Accepted Answer

A) Broca's area. 
B) the hippocampus. 
C) the brainstem. 
D) the basal nuclei 
A) Broca's area. 
B) the hippocampus. 
C) the brainstem. 
D) the basal nuclei

Question 14

Which of the following is not a part of the diencephalon?

Accepted Answer

A) Thalamus 
B) Hypothalamus 
C) Corpus callosum 
D) Posterior pituitary gland 
A) Thalamus 
B) Hypothalamus 
C) Corpus callosum 
D) Posterior pituitary gland

Question 15

Cerebrospinal fluid is produced by ________ and it ________.

Accepted Answer

A) dura mater; maintains a stable ionic concentration in the CNS 
B) choroid plexuses in the ventricles; protects the brain from blows to the skull 
C) arachnoid villi in the dura sinus; provides a pathway to the blood for waste 
D) capillaries in the dura mater of the ventricles; moistens the surface of the brain 
A) dura mater; maintains a stable ionic concentration in the CNS 
B) choroid plexuses in the ventricles; protects the brain from blows to the skull 
C) arachnoid villi in the dura sinus; provides a pathway to the blood for waste 
D) capillaries in the dura mater of the ventricles; moistens the surface of the brain

Question 16

The part of the brain that coordinates voluntary muscular movements is the

Accepted Answer

A) cerebrum. 
B) brainstem. 
C) cerebellum. 
D) corpus callosum. 
A) cerebrum. 
B) brainstem. 
C) cerebellum. 
D) corpus callosum.

Question 17

Most cerebrospinal fluid is secreted from the choroid plexuses in the

Accepted Answer

A) lateral ventricles. 
B) third ventricle. 
C) fourth ventricle. 
D) cerebral aqueduct. 
A) lateral ventricles. 
B) third ventricle. 
C) fourth ventricle. 
D) cerebral aqueduct.

Question 18

A corpus callosotomy is a procedure in which the corpus callosum is cut to decrease the severity of certain types of seizures. After the procedure, some patients have extreme difficulty performing actions related to the non-dominant hemisphere, like using their non-dominant hand. What might be the basis for this side effect?

Accepted Answer

A) The corpus callosum contains neurons that cross from one hemisphere to the other. Cutting the structure prevents the dominant hemisphere from controlling motor function in the non-dominant hemisphere. 
B) The corpus callosum handles some somatic motor neurons. Cutting the structure will stop motor function signals from one hemisphere. 
C) The corpus callosum separates the two hemispheres. Cutting the structure allows the dominant hemisphere to interfere with the motor control within the non-dominant hemisphere. 
D) The corpus callosum is the seat of control for fine motor function and positioning. Cutting the structure will prevent the onset of seizures, but also hinders fine motor function and causes confusion about where a body part is at any given time. 
A) The corpus callosum contains neurons that cross from one hemisphere to the other. Cutting the structure prevents the dominant hemisphere from controlling motor function in the non-dominant hemisphere. 
B) The corpus callosum handles some somatic motor neurons. Cutting the structure will stop motor function signals from one hemisphere. 
C) The corpus callosum separates the two hemispheres. Cutting the structure allows the dominant hemisphere to interfere with the motor control within the non-dominant hemisphere. 
D) The corpus callosum is the seat of control for fine motor function and positioning. Cutting the structure will prevent the onset of seizures, but also hinders fine motor function and causes confusion about where a body part is at any given time.

Question 19

Which of the following terms and definitions is correct?

Accepted Answer

A) Cerebral cortex-a thin layer of gray matter forming the outermost part of the cerebrum 
B) Hemisphere dominance-the largest cerebral hemisphere with the thickest cerebral cortex 
C) Limbic system-interconnected brain structures that activate skeletal muscle 
D) Cerebral cortex-a thick layer of white matter forming the innermost part of the cerebrum 
A) Cerebral cortex-a thin layer of gray matter forming the outermost part of the cerebrum 
B) Hemisphere dominance-the largest cerebral hemisphere with the thickest cerebral cortex 
C) Limbic system-interconnected brain structures that activate skeletal muscle 
D) Cerebral cortex-a thick layer of white matter forming the innermost part of the cerebrum

Question 20

The subarachnoid space within the meninges contains cerebrospinal fluid.

Accepted Answer

A) True 
 B)False

Exam 11: Nervous System II: Divisions of the Nervous System

Over a lifetime, the brain shrinks by about ________ percent.

Smoking exposes the nervous system to nicotine contained in cigarettes. Smokers experience a "buzz" from the nicotine, as it activates nicotinic receptors of ________ neurons.

When the flexor muscles of one arm contract in a withdrawal reflex, the extensor muscles of the other arm contract. This phenomenon is called

A traumatic brain injury (TBI)results from

The cardiac center, vasomotor center, and respiratory center are located in the ________ of the brainstem.

The ________ division of the autonomic nervous system decreases heart rate to return the body to ordinary, restful conditions.

The dura mater is the outermost layer of the meninges.

Spinal shock is a permanent loss of some of the spinal cord's functions.

The ________ separates the cerebrum from the cerebellum.

Which of the following is not a function of the hypothalamus?

The brain waves most closely associated with mental activity are

The central nervous system (CNS)consists of

A soldier suffers a brain injury, and becomes unable to speak. The damage is likely in

Which of the following is not a part of the diencephalon?

Cerebrospinal fluid is produced by ________ and it ________.

The part of the brain that coordinates voluntary muscular movements is the

Most cerebrospinal fluid is secreted from the choroid plexuses in the

Which of the following terms and definitions is correct?

The subarachnoid space within the meninges contains cerebrospinal fluid.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

Cerebrospinal fluid is produced by and it .