week 8 practice pre-quiz
Nerves of the Brachial Plexus that innervate the arm include the radial, ulnar, median and axillary.
true
Choose the nerve that innervates the muscles of the lateral leg compartment.
superficial peroneal (fibular) nerve
The axillary nerve innervates a muscle that flexes the arm.
true
The brachial plexus is composed of the ventral (anterior) rami of C5, C6, C7, C8, and T1
true
The conus medullaris is the cylindrical, terminal portion of the spinal cord which ends at the level of L2.
true
The dorsal root of the spinal cord contains sensory axons only
true
The femoral nerve innervates a muscle that extends the leg.
true
The lumbar plexus is composed of the ventral rami of L1, L2, L3, and L4.
true
The median nerve is derived from the medial and lateral cords of the brachial plexus
true
The median nerve pierces the coracobrachialis muscle in more than ninety percent of people.
true
The muscles found within the plantar surface of the foot are innervated by the medial and lateral plantar nerves.
true
The posterior cord of the brachial plexus gives off both the radial and axillary nerves.
true
The radial nerve innervates a muscle that extends the forearm.
true
The radial nerve innervates muscles of the posterior arm
true
The radial nerve innervates the dorsal surface of the first three lateral fingers and half of the ring finger.
true
The sacral plexus is composed of the ventral rami of L4, L5, S1, S2, S3, and S4
true
The sciatic nerve arises from the ventral rami L4, L5, S1, S2, and S3.
true
The sciatic nerve innervates a muscle that flexes the thigh and extends the leg.
true
The tibial nerve branches into the medial and lateral plantar nerves.
true
The ulnar nerve courses posterior to the medial epicondyle of the humerus.
true
The ulnar nerve innervates a muscle that adducts the carpus.
true
The ulnar nerve innervates muscles in the anterior forearm compartment
true
The ulnar nerve innervates the dorsal and palmar surfaces of the pinky and medial half of the ring finger.
true
There are a total of eight cervical spinal nerves.
true
Zygomaticus minor is innervated by CN VII.
true
Choose the nerve that innervates 1.5 muscles along the medial side in the anterior forearm.
ulnar nerve
Temporalis is innervated by CN VII.
false
Choose the nerve that innervates the muscles of the anterior leg compartment.
deep peroneal (fibular) nerve
The brachial plexus is composed of the ventral rami of C4, C5, C6, C7, and C8
false
The deep peroneal nerve innervates a muscle that plantar flexes the foot.
false
The femoral nerve innervates the muscles of the medial thigh compartment.
false
The femoral nerve is contained within the sacral plexus.
false
The heel of the foot is innervated by the superficial peroneal nerve.
false
The inferior gluteal nerve innervates Gluteus medius and Gluteus minimus
false
The median nerve innervates a muscle that extends the digits
false
The median nerve innervates the last 1.5 digits of each hand.
false
The musculocutaneous nerve innervates a muscle that flexes the carpus
false
The obturator nerve innervates a muscle that flexes the leg
false
The radial nerve innervates muscles of the posterior arm, but does not innervate muscles of any other compartment
false
The radial nerve innervates muscles of the shoulder and axillary region.
false
The radial nerve is the only nerve to course through the carpal tunnel.
false
The sacral plexus is composed of the ventral rami of L1, L2, L3, and L4.
false
The sciatic nerve innervates muscles found in the medial thigh compartment.
false
The superior gluteal nerve arises from the ventral rami L4, L5, S1, and S2
false
The tibial nerve arises from the ventral rami L3, L4, L5, and S1
false
The tibial nerve innervates a muscle that everts the foot.
false
The ventral rami convey both sensory and motor signals to the posterior trunk.
false
The ventral root of the spinal cord contains sensory axons only.
false
Choose the nerve that innervates the muscles of the anterior thigh compartment.
femoral nerve
Which of the following cranial nerves exit the cranial base through the internal acoustic meatus?
CN VII CN VIII
Which cranial nerve is responsible for sense of balance and equilibrium?
CN VIII
Which of the following cranial nerves exit the cranial base through the jugular foramen?
CN XI
Which of the following cranial nerves innervate the trapezius muscle?
CN XI
Which of the following cranial nerves innervate muscles of the tongue?
CN XII
How many nerves of the brachial plexus supply the majority of muscles and skin in the upper limb?
4
The musculocutaneous nerve is a continuation of which cord of the brachial plexus?
lateral cord
All of the following are cords formed by the ventral rami in the brachial plexus
lateral cord medial cord posterior cord
The ulnar nerve is a continuation of the _________ cord of the brachial plexus
medial
Choose the nerve that innervates the majority of the muscles found in the anterior forearm
median nerve
Choose the nerve that innervates the muscles of the anterior arm compartment
musculocutaneous nerve
Choose the nerve that innervates the muscles of the posterior arm compartment.
radial nerve
Choose the nerve that innervates the muscles of the posterior forearm.
radial nerve
Which nerve is derived from the posterior cord of the brachial plexus?
radial nerve
Choose the nerve that innervates the muscles of the posterior thigh.
sciatic nerve
Which of the following nerves exists as two nerves encased in a common epineurium?
sciatic nerve