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Exam 2
right answers
68
Anatomy
Undergraduate 1
05/02/2009

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Term
the action of the pectoralis major muscle is to:
Definition
adduct and medially rotate the humerus
Term
if a person could not extedn their wrist (wrist drop) you would expect damage to the:
Definition
radial nerve at the midshaft of the humerous
Term
a trip of skin which receives sensory innervation from a specific pair of spinal nerves is called a:
Definition
dermatome
Term
loss of pain and temperature sensation at the level of the umbilicus is most likely caused by a lesion at which vertebral segment?
Definition
T10
Term
which of the following cranial nerves does not innervate the extrinsic eye muscles?
Definition
optic
Term
the primary function of the parietal lobe is the;
Definition
storage of auditory and olfactory experiences
Term
from superficial to deep, what is the correct order of the meninges?
Definition
dura matter/arachnoid mater/pia mater
Term
which type of neuron transmits sensory information regarding pain and pressure from thoracic and abdominal organs?
Definition
VAN (GVA)
Term
all of the following are motions allowed by the scapulothoracic joint except:
Definition
circumduction
Term
which of the following regarding the posterior compartment of the arm is false?
Definition
it is innervated by the musculocutaneous nerve
Term
which statement is true of the ulnar nerve?
Definition
it innervates intrinsic hand muscles
Term
which of the following is in the proximal row of carpal bones?
Definition
trapezium
Term
the thenar muscles act on the _____ while the hypothenar muscles act on the _____.
Definition
thumb/little finger
Term
the deltoid muscle is innervated by the _____ nerve.
Definition
axillary
Term
to retract (adduct) your shoulders you would primarily use which of the following muscles?
Definition
rhomboids and trapezius
Term
all of the following are true of the clavicle except that it:
Definition
articulates with the coracoid process of the scapula
Term
when grandma pinches your cheeck, a stinging cutaneous sensation is carried to the CNS by the ____ nerve
Definition
trigeminal
Term
stimulation of exteroreceptors relays sensory information to the CNS concerning:
Definition
hot, cold, pain and touch
Term
which of the following statements correctly describes the thalamus? it is:
Definition
the principle relay station for processing afferent sensory information
Term
all of the following are true of the humerus except that:
Definition
it articulates with the radial head at the olecranon fossa
Term
the fascia that encases the entire forearm is called _____ while the fascia that encases a single muscle is called _____.
Definition
antebrachial fascia / deep investing fascia
Term
which structure houses the sensory receptors responsible for balance and equilibrium?
Definition
cochlea, vestibule, and semicricular canals
Term
after viewing a CT scan of a patient, you find trauma to the temporal bone and consequently a tear in the middle meningeal artery. what form of hematoma should you first consider?
Definition
epidural hematoma
Term
a patient enters your office complaining of paralysis of all the facial expression muscles on the right side of her face. you also determine that she does not have any taste sensation from the anterior two-thirds of her tongue. you diagnose your patient with bells palsy. which cranial nerve is involved with this condition?
Definition
facial
Term
the musculocutaneous nerve provides sensory innervation to the ____
Definition
lateral forearm
Term
which of the following statements is correct?
Definition
a lesion of the dorsal ramus would cause parethesia of the posterior part of the trunk and cervical region.
Term
the proximal attachment for the flexor wad (muscles that flew the wrist and fingers) is the:
Definition
medial epicondyle of the humerous
Term
which of the following cranial nerves contains parasympathetic VENs (GVEs)
Definition
facial, oculomotor, vagus, glossopharyngeal
Term
which of the following statements regarding the hypothalamus is false?
Definition
supraoptic nucleus processes sensations related to smell and controls swallowing
Term
all of the following statements are correct regarding cerebrospinal fluid except:
Definition
it circulates through the ventricles, subdural space, and central canal of spinal cord
Term
what observation can be made when investigating the brain of a patient with alzheimers disease?
Definition
dilation of the cerebral sulci, cerebral atrophy of the frontal and parietal lobes, narrowing (atrophy) of the gyri
Term
the nerve that carries sensory information from the palate, pharynx, larynx, and from the thoracic and abdominopelvic viscera is cranial nerve ___.
Definition
X
Term
The medial cord and lateral cords of the brachial plexus both contribute nerve fibers to form the ____ nerve.
Definition
median
Term
the muscles of the posterior compartment of the arm and forearm are innervated by the ___
Definition
radial
Term
which joint participates in supination and pronation of the forearm?
Definition
radioulnar joint
Term
which cranial nerve innervates the trapezius and sternocleidomastoid muscles?
Definition
XI
Term
which of the following muscles does the ulnar nerve innervate?
Definition
flexor carpi radialis muscle and 1/2 of flexor digitorum profundus muscle
Term
sensory neurons are also known as ____ neurons, while ____ neruons carry motor impulses. The most common type of neuron is the _____ neuron, which allows communication from one nerve cell to another.
Definition
afferent/efferent/association
Term
the four rotator cuff muscles responsible for holding the head of the humerous within the glenoid fossa are the:
Definition
supraspinatus, infraspinatus, teres major, subscapularis
Term
a neruosurgeon is about to perform an operation. before proceeding, he find it necessary to differentiate and pin-pint the somatosensory cortex (parietal lobe) from the premotor cortex (frontal lobe). which structure will allow him to differentiate these two lobes?
Definition
central sulcus
Term
VENs (GVEs)
Definition
sends motor commands from the CVS to smooth muscle and glands
Term
a fracture of the medial epicondyle of the humerous could damage which nerve?
Definition
ulnar nerve
Term
which of the following is false regarding the median nerve?
Definition
it innervated the skin (sensory) of the medial palm and last 1/2 digit
Term
the muscles of the neck and diaphragm, as well as the skin of the neck and shoulder, are innervated by the:
Definition
cervical plexus
Term
all of the following statements concerning neurons and neruoglia are true except:
Definition
in the central nervous system, myelin is synthesized by schwann cells
Term
which of the following statements is true?
Definition
gray matter is composed of cell bodies and unmyelinated axons, dendrites are cytoplasmic processes extending out from the neuron cell body, a tract is a bundle of axons located in the CNS, white matter is composed of afferent sensory pathways and efferent motor pathways.
Term
which of the following statements about hydrocephalus is true?
Definition
it can result from a tumor in the cerecral aquduct, it can result from impaired reabsorption of CSF, symptoms may include headache, nausea, and vomiting, it is associated with an increase in CSF pressure.
Term
the brachial plexus extends from the root of the neck, passing deep to which bone?
Definition
clavicle
Term
the most common causes of subarachnoid hemorrhages are the rupture of an intracranial aneurysm or head trauma. which of the following arteries will most likely cause a berry aneurysm?
Definition
middle cerebral artery, anterior communicating artery, posterior communicating artery.
Term
which of the following is not a portion of the brachial plexus?
Definition
dorsal rami
Term
the muscles of the anterior compartment of the arm all act as:
Definition
flexors
Term
which nerve is affected by carpal tunnel syndrome?
Definition
median nerve
Term
the _____ connects the right and left lobes of the cerebellum
Definition
vermis
Term
which of the following cranial nerves travels through the optic canal?
Definition
CN II
Term
the vestibulocochlear nerve travels through which cranial opening?
Definition
internal acoustic meatus
Term
while performing a neurological exam you ask your patient to stick out her tongue. upon doing so, you notice her tongue deviates to the left suggesting a potential lesion affecting the ____ nerve.
Definition
right hypoglossal
Term
the supraglenoid tubercle is the attachment site of the:
Definition
long head of biceps brachii muscle
Term
the serratus anterior is innervated by the _____, and damage to this can result in a singed scapula as the inferior angle of the scpaula pulls away from the ribs.
Definition
long thoracic nerve
Term
which of the following muscles does not contribute to elbow flexion?
Definition
coracobrachialis muscle
Term
musculocutaneous
Definition
lateral forearm
Term
median
Definition
carpal tunnel, median and lateral cord
Term
radial
Definition
innervates intrinsic hand muscles, wrist drop, posterior arm compartment
Term
ulnar
Definition
flexor radialis, digitum profundus, fracture to medial epicondyle
Term
long thoracic
Definition
serratus anterior
Term
axillary
Definition
deltoid muscle
Term
facial
Definition
bells palsey
Term
trigeminal
Definition
pinch of cheek
Term
XI
Definition
innervated trapezious and sternocheidomastoid
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