Anatomy I Summative exam
A flexor of the forearm at the elbow joint is innervated by the radial nerve
on a lateral and the musculocutaneous
component
nerve.
Where does this muscle originate on the medial side? correct answers
Intermuscular
septu
m
coracoid process. correct answers The short head of the biceps brachii
originates from
th
e
infraglenoid tubercle of the scapula. correct answers The long head of
the triceps
brachii originates from
the
intermuscular septum correct answers The brachialis originates from
parts of the on the medial
side
supraglenoid tubercle of the scapula. correct answers The long head of
the biceps
brachii originates from
the
A muscle within the superficial layer of the posterior forearm is innervated
by the radial
nerve
.What is a role of this muscle? correct answers Abductor of
the wrist
-This muscle is the extensor carpi radialis longus, an abductor of
the wrist.
A structure consists of the pinna and the external acoustic meatus. What
feature ofreflects
structure this sound from behind? correct answers
Tragus
The tragus correct answers a component of the outer ear, reflects sound
coming the
behind fromear
canal.
The auricle (including antihelix and helix) correct answers amplifies sound
toward the
ear
canal.
A cranial nerve with both sensory and motor components sends the
sensation
from of tasteportion of the
the anterior
tongue.
What muscle group does this nerve innervate? correct answers
Muscles of facial
expressio
n
-The nerve is cranial nerve VII, the facial nerve. The facial nerve innervates
thefacial
of muscles
expression, among other
structures.
, trigeminal correct answers The nerve innervates the
muscles of
masticatio
n.
glossopharyngeal correct answers The muscles of the pharynx are
innervated by the
nerve.
vagus correct answers The muscles of phonation are innervated by the
nerve
.
The cord of a plexus is positioned medial to the second part of the
axillary
What artery.
roots are the origin of this structure? correct answers
C8 and T1
-The structure is the medial cord of the brachial plexus, which originates
from C8 and
T1
.
medial correct answers the cord of the brachial plexus originates
from C8
and
T1.
lateral correct answers The cord of the brachial plexus originates
from C5
to
C7.
Small segmental correct answers branches of the
plexus progress from C5 to C8 to the muscles of
brachial
the neck.
posterior correct answers The cord of the brachial plexus
originates
from C5 to
T1.
A nerve provides the motor innervation to all muscles in the anterior
compartment of the
ar
What muscle does this nerve penetrate to enter the arm?
m
correct answers
Coracobrachial
is
The structure is the musculocutaneous nerve, which enters the arm by
penetrating the
coracobrachial
is
coracobrachialis the musculocutaneous nerve correct answers this nerve
enters
arm bythe
penetrating the coracobrachialis, then It continues between the
and brachialis
biceps brachii
muscles.
teres major. correct answers The median nerve enters the arm at the
margin of the
The roots and trunks of a plexus enter the posterior triangle of the neck
betweenscalene
anterior the and middle
scalene.
What forms the middle trunk of this plexus? correct answers
roo
Continuation of the C7
t
A flexor of the forearm at the elbow joint is innervated by the radial nerve
on a lateral and the musculocutaneous
component
nerve.
Where does this muscle originate on the medial side? correct answers
Intermuscular
septu
m
coracoid process. correct answers The short head of the biceps brachii
originates from
th
e
infraglenoid tubercle of the scapula. correct answers The long head of
the triceps
brachii originates from
the
intermuscular septum correct answers The brachialis originates from
parts of the on the medial
side
supraglenoid tubercle of the scapula. correct answers The long head of
the biceps
brachii originates from
the
A muscle within the superficial layer of the posterior forearm is innervated
by the radial
nerve
.What is a role of this muscle? correct answers Abductor of
the wrist
-This muscle is the extensor carpi radialis longus, an abductor of
the wrist.
A structure consists of the pinna and the external acoustic meatus. What
feature ofreflects
structure this sound from behind? correct answers
Tragus
The tragus correct answers a component of the outer ear, reflects sound
coming the
behind fromear
canal.
The auricle (including antihelix and helix) correct answers amplifies sound
toward the
ear
canal.
A cranial nerve with both sensory and motor components sends the
sensation
from of tasteportion of the
the anterior
tongue.
What muscle group does this nerve innervate? correct answers
Muscles of facial
expressio
n
-The nerve is cranial nerve VII, the facial nerve. The facial nerve innervates
thefacial
of muscles
expression, among other
structures.
, trigeminal correct answers The nerve innervates the
muscles of
masticatio
n.
glossopharyngeal correct answers The muscles of the pharynx are
innervated by the
nerve.
vagus correct answers The muscles of phonation are innervated by the
nerve
.
The cord of a plexus is positioned medial to the second part of the
axillary
What artery.
roots are the origin of this structure? correct answers
C8 and T1
-The structure is the medial cord of the brachial plexus, which originates
from C8 and
T1
.
medial correct answers the cord of the brachial plexus originates
from C8
and
T1.
lateral correct answers The cord of the brachial plexus originates
from C5
to
C7.
Small segmental correct answers branches of the
plexus progress from C5 to C8 to the muscles of
brachial
the neck.
posterior correct answers The cord of the brachial plexus
originates
from C5 to
T1.
A nerve provides the motor innervation to all muscles in the anterior
compartment of the
ar
What muscle does this nerve penetrate to enter the arm?
m
correct answers
Coracobrachial
is
The structure is the musculocutaneous nerve, which enters the arm by
penetrating the
coracobrachial
is
coracobrachialis the musculocutaneous nerve correct answers this nerve
enters
arm bythe
penetrating the coracobrachialis, then It continues between the
and brachialis
biceps brachii
muscles.
teres major. correct answers The median nerve enters the arm at the
margin of the
The roots and trunks of a plexus enter the posterior triangle of the neck
betweenscalene
anterior the and middle
scalene.
What forms the middle trunk of this plexus? correct answers
roo
Continuation of the C7
t
