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Difficult Multiple Choice
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1
Muscles with origins on the lateral epicondyle of the humerus
A)include the anconeus and supinator
B)are mostly extensors
C)are innervated by the radial nerve
D)all of the above
2
Except for the deepest layer, the anterior muscles of the antebrachial region
A)originate mostly on the medial epicondyle of the humerus
B)assist in supinating the forearm
C)extend the wrist and fingers
D)all of the above
3
Which muscle of the upper limb inserts onto specialized areas of deep fascia rather than bone?
A)triceps brachii
B)palmaris longus
C)pronator teres
D)adductor pollicis
4
Which joint has the most flexors?
A)glenohumeral
B)elbow
C)knee
D)wrist
5
Which muscles allow you to shrug your shoulders?
A)supraspinatus
B)levator scapulae
C)pectoralis major
D)latissimus dorsi
6
Which action is performed by the most muscles at the coxal joint?
A)extension
B)flexion
C)adduction
D)lateral rotation
7
Of the following, which muscles are antagonists to the subscapularis?
A)coracobrachialis and teres major
B)pectoralis major and latissimus dorsi
C)infraspinatus and teres minor
D)all of the above
8
All of the following accurately describe movements of the thumb except
A)extension increases the angle between the trapezium and first metacarpal
B)opposition swings the thumb across the palm toward the tips of digits 2-5
C)abduction increases the distance between the thumb and the index finger
D)adduction involves an angular movement at the first carpometacarpal joint
9
Which muscle contributes most directly to the careers of boxers?
A)trapezius
B)pectoralis major
C)rhomboid major
D)serratus anterior
10
In the lower limb, hip flexors insert ____________ on the thigh, while knee flexors insert ____________ on the leg.
A)posteriorly; anteriorly
B)anteriorly; posteriorly
C)medially; laterally
D)laterally; medially
11
Which muscle has the same actions as the tensor fasciae latae and is a frequent site of intramuscular injections?
A)gluteus maximus
B)gluteus medius
C)gluteus minimus
D)biceps femoris
12
Which action is performed by the most muscles at the wrist?
A)extension
B)flexion
C)adduction
D)abduction
13
The gastrocnemius and soleus are like the psoas major and iliacus in that each pair
A)composes the anterior compartment of its respective limb segment
B)is innervated by nerves arising from the lumbar plexus (L2-L3)
C)shares a tendon of insertion and is often regarded as a single muscle
D)all of the above
14
The only muscles that flex both the thigh and the leg are the
A)hamstrings
B)sartorius and gracilis
C)psoas major and iliacus
D)rectus femoris and pectineus
15
What is the only muscle that flexes the thigh and extends the leg?
A)rectus femoris
B)sartorius
C)biceps femoris
D)semimembranosus
16
Of the following, which two muscles are antagonists to different actions of the gluteus maximus?
A)biceps femoris and gracilis
B)iliopsoas and gluteus minimus
C)adductor longus and sartorius
D)gluteus medius and gluteus minimus
17
The name of the ____________ indirectly refers to the muscle's role in crossing one's legs.
A)piriformis
B)pectineus
C)sartorius
D)gracilis
18
Which statement is false regarding the quadriceps tendon and patellar ligament?
A)the quadriceps tendon attaches the quadriceps muscle to the patella
B)the patellar ligament attaches the patella to the tibial tuberosity
C)they are really a single connective tissue band subdivided by a sesamoid bone
D)the two develop separately in the embryo and later join at the patella
19
The thenar muscles are all innervated by the ____________ nerve; the hypothenar muscles, by the ____________ nerve.
A)radial; ulnar
B)ulnar; radial
C)median; ulnar
D)ulnar; median
20
Which muscle is the primary antagonist of the muscles that insert on the calcaneus?
A)tibialis anterior
B)tibialis posterior
C)fibularis longus
D)fibularis brevis
21
Because the two heads of the ____________ share a common tendon of insertion with the ____________, these muscles are collectively called the triceps surae.
A)biceps brachii; brachialis
B)biceps femoris; semitendinosus
C)iliacus; psoas major
D)gastrocnemius; soleus
22
Which muscle pulls obliquely on another muscle's tendons to prevent the toes from flexing at an angle?
A)flexor digitorum longus
B)flexor digitorum brevis
C)quadratus plantae
D)adductor hallucis
23
Carpal tunnel syndrome results from compression of either the median nerve or the tendons in the narrow space between the carpal bones and the
A)extensor retinaculum
B)flexor retinaculum
C)fascia lata
D)interosseous membrane
24
What causes compartment syndrome?
A)pressure on nerves within the compartment of a retinaculum
B)ischemia resulting from clots in vessels outside a limb compartment
C)swollen muscles that compress blood vessels in a limb compartment
D)strained tendons of the muscles in a muscular compartment
25
On the foot as well as the hand, the dorsal interossei ____________ the digits.
A)abduct
B)adduct
C)flex
D)extend





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