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Dr. Rachow

C. forming a cellular tube that can direct the growth of new axons

In the peripheral nervous system, Schwann cells participate in the repair of damaged nerves by
A. producing new axons
B. regenerating cell bodies for the neurons
C. forming a cellular tube that can direct the growth of new axons
D. clearing away cellular debris
E. all of the above

C. lumbar spinal nerves: 4

Which of the following pairs is not properly matched?
A. cervical spinal nerves: 8
B. thoracic spinal nerves: 12
C. lumbar spinal nerves: 4
D. sacral spinal nerves: 5
E. coccygeal spinal nerves: 1

B. Schwann cells

Each of the following is a type of glial cell found in the central
nervous system except one. Identify the exception.
A. Astrocytes B. Schwann cells C. Oligodendrocytes
D. Microglia E. Ependymal cells

E. all of the above

The limbic system
A. contains both cerebral and diencephalic components
B. functions in emotions, learning and memory
C. consists of nuclei that lie between the border between the cerebrum
and the diencephalon
D. provides a link between the conscious, intellectual functions of the
cerebral cortex and the unconscious functions of the brain stem
E. all of the above

E. synapse

The site of intercellular communication between neurons is the
A. telodendria B. synaptic knob C. collateral
D. hillock E. synapse

D. hypothalamus

The most complex endocrine responses involve the
A. thyroid gland
B. pancreas
C. adrenal glands
D. hypothalamus
E. thymus

C. changing shape

The len focuses light on the photoreceptor cells by
A. moving up and down
B. moving in and out
C. changing shape
D. opening and closing
E. dilating and constricting

A. sympathetic division

The division of the autonomic nervous system that prepares the body for activity and stress is the
A. sympathetic division
B. parasympathetic division
C. craniosacral division
D. intramural division
E. somatomotor division

D. somatic nervous system

Voluntary control of skeletal muscles is provided by the
A. sympathetic nervous system
B. parasympathetic nervous system
C. afferent nervous system
D. somatic nervous system
E. autonomic nervous system

B. is composed of myelinated fibers

The white matter of the spinal cord
A. is located in the center of the cord
B. is composed of myelinated fibers
C. contains nerve cell bodies
D. functions in processing neural information
E. carries only motor impulses

D. cell bodies of sensory neurons

The dorsal root ganglia contain
A. axons of motor neurons
B. axons of sensory neurons
C. cell bodies of motor neurons
D. cell bodies of sensory neurons
E. interneurons

C. the harder it is to discriminate the exact point of stimulation

The larger the receptive field
A. the larger the stimulus needed to stimulate a sensory receptor
B. the fewer sensory receptors there are
C. the harder it is to discriminate the exact point of stimulation
D. the larger the area of the somatosensory cortex in the brain that
deals with the area
E. all of the above

D. referred pain

Pain that is perceived as coming from an area other than that which is actually being stimulated is called
A. prickling pain
B. burning pain
C. aching pain
D. referred pain
E. none of the above

C. mineralocorticoids

The zona glomerulosa of the adrenal cortex produces
A. androgens
B. glucocorticoids
C. mineralocorticoids
D. epinephrine
E. norepinephrin

D. cut designs from construction paper

Damage to the premotor cortex of the frontal lobe would interfere with the ability to
A. understand written words
B. understand spoken language
C. clearly see visual images
D. cut designs from construction paper
E. sense the texture of sil

E. cerebrum

The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory and motor information is the
A. medulla B. pons C. mesencephalon
D. diecephalon E. cerebrum

D. digestive enzymes

The exocrine portion of the pancreas produces
A. insulin
B. glucagon
C. somatotropin
D. digestive enzymes
E. bile

D. lateral and median apertures

Cerebrospinal fluid enters the subarachnoid space by way of the
A. interventricular foramina
B. aqueduct of sylvius
C. dural sinus
D. lateral and median apertures
E. falx cerebri

D. autonomic neurons

Preganglionic and postganglionic fibers are characteristic of
A. sensory neurons
B. interneurons
C. somatic efferent neurons
D. autonomic neurons
E. all of the above

A. tympanic membrane to the oval window

The ossicles connect the
A. tympanic membrane to the oval window
B. tympanic membrane to the round window
C. the oval window to the round window
D. the cochlea to the tympanic membrane
E. the cochlea to the oval window

E. all of the above

Steroid hormones
A. are lipids
B. are structurally similar to cholesterol
C. are produced by reproductive glands
D. bind to receptors within the cell
E. all of the above

B. the lining of the capillaries in the CNS forms a blood-brain barrier

Many medications introduced into the blood stream cannot directly affect the neurons of the CNS because
A. oligodendrocytes form a continuous myelin sheath around the axons
B. the lining of the capillaries in the CNS forms a blood-brain barrier
C. the neurilemma is impermeable to all types of molecules
D. the ependymal cells restrict the flow of interstitial fluid between the capillaries and the neurons
E. Glial cells like the astrocytes form a physical barrier between the blood vessels and the neuron's membrane.

C. 4, 1, 5, 2, 3

The following are the steps involved in a reflex arc 1. activation of a
sensory neuron 2. activation of a motor neuron 3. response by an
effector 4. arrival of a stimulus and activation of a receptor 5.
information processing. The proper sequence of these steps is
A. 1, 3, 4, 5, 2
B. 4, 5, 3, 1, 2
C. 4, 1, 5, 2, 3
D. 4, 3, 1, 5, 2
E. 3, 1, 4, 5, 2

C. testosterone

The interstitial cells of the testes produce
A. estrogen B. progesterone C. testosterone
D. inhibin E. ICSH

D. parathyroid hormone

The hormone that is the antagonist of calcitonin is
A. insulin
B. glucagon
C. growth hormone
D. parathyroid hormone
E. thyroid hormone

E. all of the above

The term general senses refers to sensations of
A. temperature
B. pain
C. touch
D. pressure
E. all of the above

B. precentral gyrus

The primary motor area is located in the region of the
A. insula
B. precentral gyrus
C. postcentral gyrus
D. arcuate gyrus
E. corpus callosum

C. the optic nerve attaches to the retina

A blind spot in the retina occurs where
A. the fovea is located
B. ganglion cells synapse with bipolar cells
C. the optic nerve attaches to the retina
D. rod cells are clustered to form the macula
E. amacrine cells are located

D. commissural fibers

The corpus callosum is composed of
A. arcuate fibers B. longitudinal fasciculi
C. association fibers D. commissural fibers
E. projection fiber

C. releasing and inhibiting hormones

The hypothalamus controls the secretions of the anterior pituitary by way of
A. direct neural stimulation
B. direct mechanical control
C. releasing and inhibiting hormones
D. altering ion concentrations in the anterior pituitary
E. gap junctions

D. the presence or absence of appropriate receptors

A cell's ability to respond to a hormone is determined by
A. the chemical nature of the hormone
B. the quantity of circulating hormone
C. the shape of the hormone molecules
D. the presence or absence of appropriate receptors
E. the thickness of the cell membrane

D. corticospinal tract

Each of the following is an ascending tract in the spinal cord except one. Identify the exception.
A. fasciculus gracilis
B. fasciculus cuneatus
C. posterior spinocerebellar
D. corticospinal tract
E. anterior spinothalamic

A. estrogen

Follicle cells in the ovary produce large quantities of __________ when stimulated by gonadotropins.
A. estrogen
B. progesterone
C. testosterone
D. FSH
E. LH

E. inferior colliculi

The movement of the head in the direction of a loud noise is coordinated in the mesencephalon. Which nuclei are most likely involved in this process?
A. substantia nigra
B. red nuclei
C. tectum
D. superior colliculi
E. inferior colliculi

D. acetylcholine

Cholinergic neuroeffector junctions release the neurotransmitter
A. norepinephrine
B. adrenalin
C. serotonin
D. acetylcholine
E. GABA

B. ADH

Each of the following hormones is produced by the anterior pituitary except one. Identify the exception.
A. FSH B. ADH C. TSH D. ACTH E. prolactin

C. aldosterone

Cells of the adrenal cortex produce
A. epinephrine
B. norepinephrine
C. aldosterone
D. ACTH
E. insulin

C. an organ receiving both sympathetic and parasympathetic nerves

Dual innervation refers to
A. an organ receiving two nerves from the spinal cord
B. an organ receiving both autonomic and somatomotor nerves
C. an organ receiving both sympathetic and parasympathetic nerves
D. an organ receiving nerves from both the brain and the spinal cord
E. none of the above

B. provide the general pattern and rhythm for movements such as walking

The cerebral nuclei
A. plan and coordinate voluntary muscle activity
B. provide the general pattern and rhythm for movements such as walking
C. coordinate sensory information
D. control the secretions of the pituitary gland
E. control respiration and blood pressure

C. in segments of the spinal cord that control the limbs

Enlargements of the spinal cord occur
A. near the posterior median sulcus
B. adjacent to the anterior median fissure
C. in segments of the spinal cord that control the limbs
D. in the thoracic region of the spinal cord
E. in the filum terminale

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