Ch.12 Questions

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White matter (myelinated fibers) is found in all of the following locations except the ________.

a) outer portion of spinal cord
b) corpus callosum
c) cerebral cortex
d) corticospinal tracts

c) cerebral cortex

Damage to the premotor cortex results in loss of motor skills programmed in that area but movement is still possible (True/False).

True

Damage to the visual association area results in blindness. (True/False)

False

Damage to the primary motor cortex results only in the loss of voluntary muscle control (True/False)

True

Damage to the primary auditory cortex results in the inability to interpret pitch, loudness, and location (True/False)

True

Injury to the hypothalamus may result in all of the following EXCEPT ________.

a) pathologic sleep
b) loss of body temperature control
c) production of excessive quantities of urine
d) loss of proprioception

d) loss of proprioception

The brain area that regulates activities that control the state of wakefulness or alertness of the cerebral cortex is the ________.

Reticular formation

The vital centers for the control of heart rate, respiration, and blood pressure are located in the ________.

medulla oblangata

What cells line the ventricles of the brain?
a) ependymal cells
b) epithelial cells
c) neurons
d) astrocytes

a) ependymal cells

A shallow groove on the surface of the cortex is called a ________.

a)gyrus
b)sulcus
c)furrow
d)fissure

b) sulcus

Two terms for the massive motor tracts serving voluntary movement are ________ & ________

pyramidal & corticospinal

The brain stem consists of the ________.
a) midbrain only
b) midbrain, medulla, and pons
c) pons, medulla, cerebellum, and midbrain
d) cerebrum, pons, midbrain, and medulla

b) midbrain, medulla, and pons

Which of the following generalizations DOES NOT describe the cerebral cortex?
a) Each hemisphere is chiefly concerned with sensory and motor functions of the contralateral side of the body.
b) No functional area of the cortex works alone.
c) The cerebral cortex contains three kinds of functional areas.
d) The hemispheres are exactly equal in function.

d) The hemispheres are exactly equal in function.

The area of the cortex that is responsible for sensations of the full bladder and the feeling that your lungs will burst when you hold your breath too long is the ________.

visceral sensory area

Cell bodies of the somatic motor neurons of the spinal nerves are located in the ventral horn of the spinal cord. (TRUE/FALSE)

True

Most of the ascending & Descending pathways to and from the brain cross over from one side of the body to the other (True/False)

True

Second Order Neurons of both the specific & nonspecific ascending pathways terminate in the ___________.

thalamus

The blood brain barrier is effective against ________________

metabolic wastes such as urea.

Which of these would you not find in the cerebral cortex?
a) unmyelinated axons
b) fiber tracts
c) dendrites
d) cell bodies

b) fiber tracts

Which of the following is not a role of the basal nuclei?
a) regulating attention and cognition
b) inhibiting unnecessary or antagonistic movements
c) initiating protective reflex actions
d) controlling starting and stopping movements

c) initiating protective reflex actions

Which part of the cerebral cortex is involved in intellect, cognition, recall, and personality?
a) limbic association area
b) posterior association area
c) prefrontal cortex
d) combined primary somatosensory cortex and somatosensory association cortex

c) prefrontal cortex

Projection fibers in the brain mainly connect the right and left hemispheres (True/False)

False; commissural fibers do

Which of the following is not a function of the hypothalamus?
a) Regulation of food intake
b) Secretion of the hormone melatonin
c) Regulation of body temperature
d) Emotional responses

b) secretion of the hormone melatonin

Which part of the brain stem houses the reflex centers for respiration and cardiovascular functioning?
a) reticular formation
b) medulla oblongata
c) pons
d) midbrain

b) medulla oblongata

Which part of the brain is the "executive suite" for all brain activity?

cerebral cortex

Which type of white matter fiber tract connects the two cerebral hemispheres?

commissures

Which of the following best describes the hypothalamus?
a) gateway to the cerebellum
b) visceral control center of the body
c) entrance to the spinal cord
d) motor command center

b) visceral control center of the body

Which of the following is not one of the three types of functional areas within the cerebral cortex?
a) Sensory areas
b) Motor areas
c) Association areas
d) Brodmann areas

d) Brodmann areas

Which region of the brain coordinates subconscious activities and provides for the muscle coordination and agility needed for our daily living?

cerebellum

Which of the following meninges is composed of delicate connective tissue and is richly invested with tiny blood vessels?
a) Dura mater
b) Arachnoid mater
c) Pia mater
d) Casa mater

c) Pia mater

Sorting of sensory information and relaying it to the appropriate cerebral sensory area occurs in the hypothalamus. (True/False)

False

The limbic system acts as our emotional, or affective, brain (True/False)

True

A disturbance of posture, muscle tremors at rest, and uncontrolled muscle contraction are all symptoms of damage to the basal nuclei (True/False)

True

Which of the following is not a function of the CSF?
a) reduction of brain weight
b) nourishment of the brain
c) protection from blows
d) initiation of some nerve impulses

d) initiation of some nerve impulses

Which of the following would you not find in normal cerebrospinal fluid?
a) potassium
b) glucose
c) protein
d) red blood cells

d) red blood cells

Cerebrospinal fluid (CSF) circulates within the ventricles of the brain and in the subarachnoid space outside the brain (True/False)

True

The white matter of the spinal cord contains ________.
a) myelinated nerve fibers only
b) soma that have both myelinated and unmyelinated nerve fibers
c) unmyelinated nerve fibers only
d) myelinated and unmyelinated nerve fibers

d) myelinated and unmyelinated nerve fibers

Sensory neurons enter the spinal cord via the ________ horn.

dorsal horn

The adult spinal cord ends between L1 and L2. (True/False)

True

Spinocerebellar tracts ________.
a) terminate in the spinal cord
b) are found in the dorsal columns of the spinal cord
c) give rise to conscious experience of perception
d) carry proprioceptive inputs to the cerebellum

d) carry proprioceptive inputs to the cerebellum

Cell bodies of the sensory neurons of the spinal nerves are located in ________.
a) the dorsal root ganglia of the spinal cord
b) the thalamus
c) the ventral root ganglia of the spinal cord
d) sympathetic ganglia

a) the dorsal root ganglia of the spinal cord

Cell bodies of the somatic motor neurons of the spinal nerves are located in the ventral horn of the spinal cord (True/False)

True

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