A & P 1: Chapter 13
In which structure are sensory cell bodies located?
10
There are ________ pairs of cranial nerves.
12
Where do somatic motor neurons reside?
15
Which plexus contains nerves that innervate the lower part of the shoulder and the entire arm?
Brachial
Identify the nerve labeled "14."
Hypoglossal
Which of the following cranial nerves is responsible for movements of the tongue?
Hypoglossal
If a person is having problems with tongue movement, what would you predict as a possible cause and other potential problems?
Hypoglossal nerve damage and a decrease in proprioception of the tongue
The cranial nerves that innervate the eye muscles are
III, IV, and VI
Which of the following cranial nerves are motor only. (Select all that apply)
Oculomotor Trochlear Abducens Accessory Hypoglossal
Identify the nerve labeled "1."
Optic
Which of the following cranial nerves does not have the function of eye movement?
Trigeminal nerve
Identify the nerve labeled "5."
Vagus
Place the meninges and associated spaces in order from most superficial to deepest: ____ epidural space ____ dura mater ____ subarachnoid space ____ pia mater ____ subdural space ____ arachnoid mater
__1__ epidural space __2__ dura mater __5__ subarachnoid space __6__ pia mater __3__ subdural space __4__ arachnoid mater
Place the meninges and associated spaces in order from most deep to superficial: ____subdural space ____ epidural space ____ dura mater ____ arachnoid mater ____ subarachnoid space ____ pia mater
__4__subdural space __6__ epidural space __5___ dura mater __3__ arachnoid mater __2__ subarachnoid space __1__ pia mater
The obturator nerve is distributed to the
adductors of the hip.
Identify the structure labeled "10."
anterior gray commissure
Identify the structure labeled "3."
aqueduct of midbrain
the subdural space is superficial to which layer of the meninges of the spinal cord?
arachnoid subarachnoid space.
Identify the structure labeled "8."
arachnoid granulation
The ventral root of a spinal nerve contains
axons of motor neurons.
Where is the subdural space?
between the dura mater and the arachnoid mater.
The neural tissue is isolated from the general circulation by the ________.
blood-brain barrier
How are spinal nerves are classified?
both sensory and motor.
Identify the structure labeled "10."
central canal
The phrenic nerve arises from the _____ plexus, and innervates the _____.
cervical, diaphragm
Inferior to the lumbar enlargement, the spinal cord tapers to a conical portion called the...
conus medullaris
Identify the structure labeled "7."
dura mater
The tough, fibrous, outermost covering of the spinal cord is the
dura mater.
Which layer of the meninges are outermost covering of the spinal cord?
dura mater.
What is the layer of connective tissue that surrounds individual axons within a peripheral nerve ?
endoneurium
The ________ provides the principal link between the nervous and endocrine systems.
hypothalamus
Where are enlargements of the spinal cord found?
in those spinal segments that control the limbs.
The region of the cerebral cortex that is medial and deep to the temporal lobe is the
insula
The superior border of the temporal lobe is marked by the
lateral sulcus
Spinal nerves from the sacral region of the cord innervate the ________ muscles.
leg
Divisions of the cerebral hemispheres that are named after the overlying skull bones are
lobes
If the ventral root of a spinal nerve were cut, what would be the result in the region supplied by that nerve?
loss of movement
A viral disease that destroys the cells of the anterior gray horn will result in which of the following?
muscle weakness or paralysis.
After suffering a blow to the back of the head, Phil loses his vision. The blow probably caused damage to the
occipital lobe.
Identify the nerve labeled "10."
oculomotor
What is the function of the structure labeled "7"?
olfaction
The cerebral area posterior to the central sulcus is the
parietal lobe.
Which of the following nerves arises from the cervical plexus?
phrenic
The layer of the meninges that closely follows every gyrus and sulcus is the
pia mater.
Which layer of the meninges is in direct contact with the spinal cord?
pia mater.
Which of these is not one of the main divisions of the adult brain?
prosencephalon
The posterior horns of the spinal cord contain mainly which of the following?
sensory nuclei.
Which of the following are found in the anterior horns of the spinal cord?
somatic motor nuclei.
Identify the structure labeled "8."
spinal nerve
Where does the Cerebrospinal fluid flow?
subarachnoid space.
Identify the structure labeled "6."
sympathetic ganglion
Which cranial nerve number is assigned to the vagus nerve?
tenth cranial
Cerebrospinal fluid enters the blood circulation at the
tentorium cerebelli
Identify the nerve labeled "11."
trigeminal
The Roman numeral V indicates the ________ nerve.
trigeminal
Identify the nerve labeled "2."
trochlear
Absorption at the arachnoid granulations returns cerebrospinal fluid to the
venous circulation.
