Anatomy Ii -- Msg Practice Exam

Front 1

Your patient experiences radial deviation of the hand at the wrist when flexing the wrist, and altered sensation in the skin covering the hypothenar eminence. What might be the cause of these symptoms?

Back 1

fracture of the medial epicondyle of the humerus

Front 2

A patient develops a significant clawing of the fourth and fifth digits secondary to nerve injury. The clawing is the result of weakening of which muscles?

Back 2

Lumbricals

Front 3

A patient has suffered a fracture of the surgical neck of the humerus.

What muscle might be weakened?

Back 3

Deltoid

Front 4

A person who uses hand tools for a living begins to develop pain and paresthesia in the right hand at night. The altered sensation is most evident on the palmar aspects of the index and middle fingers. What else might you expect to see in the patient?

Back 4

atrophy of the thenar eminence

Front 5

The axillary artery has become progressively occluded deep to the pectoralis minor muscle. Which pair of blood vessels might provide a significant collateral circulation around the blockage?

Back 5

Subscapular artery and suprascapular artery

Front 6

Your patient has fallen on their outstretched hand and dislocated the lunate. The patient does not seek treatment and several weeks later begins to exhibit signs of nerve compression. What might the patient present with?

Back 6

Weakness in the ability to oppose the thumb

Front 7

A 13 year old gymnast who practiced 20 hours per week complained of low back pain. A physical and radiographic examination reveal a stress fracture of the L5 vertebra. What repetitive movement of the vertebral column may result in a stress fracture of the vertebral column?

Back 7

repetitive hyperextension of the vertebral column

Front 8

The most commonly torn part of the rotator cuff is:

Back 8

the tendon of the supraspinatus muscle

Front 9

The most frequently fractured bone in the wrist is the

Back 9

scaphoid

Front 10

Where is origin of the palmaris longus?

Back 10

medial epicondyle of the humerus

Front 11

What does opposition of the thumb consist of?

Back 11

a rotational movement of the 1st metacarpal around the long axis of its shaft

Front 12

What forms the floor of the anatomic snuffbox?

Back 12

Scaphoid and trapezium bones

Front 13

What forms the proximal border of the anatomic snuffbox?

Back 13

the styloid process of the radius

Front 14

What gives rise to the common interosseous artery?

Back 14

Ulnar artery

Front 15

What pass through the carpal tunnel?

Back 15

Flexor digitorum profundus tendons, flexor digitorum superficialis tendons, median nerve, and flexor pollicis longus tendon

Front 16

What nerves innervate the lumbricals of the hand?

Back 16

Ulnar two: ulnar nerve via deep branch

Radial two: median nerve via palmar digital nerves

Front 17

What muscles extend the fingers at the IP joints?

Back 17

Lumbricals, interosseous muscles, and extensor digitorum

Front 18

What muscles does the superior gluteal nerve innervate?

Back 18

gluteus medius, gluteus minimis, and tensor fasciae latae

Front 19

What muscles does the inferior gluteal nerve innervate?

Back 19

Gluteus maximus

Front 20

What are the actions of the sartorius muscle?

Back 20

flexes, abducts and laterally rotates the thigh; flexes leg

Front 21

What are the actions of the iliacus?

Back 21

flexes the thigh; if the thigh is fixed it flexes the pelvis on the thigh

Front 22

What are the actions of the rectus femoris?

Back 22

extends the leg, flexes the thigh

Front 23

Innervation of rectus femoris?

Back 23

femoral nerve

Front 24

Action of vastus intermedius?

Back 24

extends the leg at knee

Front 25

What arteries form the principal blood supply of the muscles in the posterior compartment of the thigh?

Back 25

perforating branches of the profunda femoris

Front 26

What muscle is innervated by both the obturator and tibial nerves?

Back 26

Adductor magnus

Front 27

What does the adductor canal contain?

Back 27

Femoral artery and vein, and branches of femoral nerve (saphenous nerve, and the nerve to the Vastus medialis)

Front 28

What nerves must be intact to keep the right side of the pelvis from sagging as weight is born by the left lower limb exclusively during stride?

Back 28

left superior gluteal

Front 29

What are the actions of the superior gemellus?

Back 29

laterally rotates the femur

Front 30

What are the actions of the obturator internus?

Back 30

Laterally rotates extended thigh and abducts flexed thigh

Front 31

What are the actions of the piriformis?

Back 31

laterally rotates and abducts thigh

Front 32

What type of fracture is most likely to result in avascular necrosis of the femoral head?

Back 32

femoral neck

Front 33

In what plane do the cruciate ligaments cross?

Back 33

Both sagital and coronal planes

Front 34

Lateral rotation of the femur on the tibia (unlocking of the knee), prior to flexion of the knee joint, is produced by which muscle?

Back 34

popliteus

Front 35

What are the actions of the peroneus brevis?

Back 35

extends (plantar flexes) and everts the foot

Front 36

Innervation of peroneus brevis?

Back 36

superficial fibular (peroneal) nerve

Front 37

Extensor digitorum brevis lies __________ to dorsal interossei?

Back 37

Superficial

Front 38

What nerve supplies the skin of the 1st interspace (between toes 1 and 2)?

Back 38

Deep peroneal

Front 39

branches of what nerve supply the entire plantar surface?

Back 39

Tibial

Front 40

What nerve supplies the medial aspect of the dorsum of the foot?

Back 40

Saphenous

Front 41

What bones participate in the talocural joint?

Back 41

tibia, fibula, talus

Front 42

the medial plantar artery is a branch of what?

Back 42

the posterior tibial artery

Front 43

the great saphenous vein passses anterior to ____________ as it leaves the foot

Back 43

the medial malleolus

Front 44

what is a direct continuation of the anterior tibial artery?

Back 44

the dorsalis pedis

Front 45

the small saphenous vein passes posterior to what?

Back 45

the lateral malleolus

Front 46

what does the lateral plantar artery derive from?

Back 46

Posterior tibial artery

Front 47

What happens to abduction of the thumb if the radial nerve is injured as it crosses the elbow?

Back 47

Partially lost

Front 48

What is the medial attachment site for the flexor retinaculum?

Back 48

Pisiform bone and hamulus of the hamate bone

Front 49

Five muscles that originate in the common flexor tendon:

Back 49

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor digitorum superficialis
Flexor carpi ulnaris

Front 50

The majority of all intrinsic muscles of the foot are innervated by the:

Back 50

lateral plantar nerve

Front 51

All the muscles of the flexor compartment of the forearm are supplied by the median nerve EXCEPT

Back 51

flexor carpi ulnaris and medial part of flexor digitorum profundus

Front 52

The tip of the conus medularis is usually found at which vertebral level?

Back 52

L2

Front 53

What muscles function during walking to prevent the unsupported side of the pelvis from tilting significantly inferiorly?

Back 53

hip abductors on the supported side

Front 54

Compression of what nerve would result in foot drop (the inability to dorsiflex the foot during the swing phase of walking)?

Back 54

common peroneal nerve