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Anatomy Exam 3 (JO) > Module 9 > Flashcards

Module 9 Flashcards

1
Q

Which of the following are considered important bony landmarks of the radius? Select all that apply.
Head
Trochlear Notch
Styloid Process
Carpal Articular Surfaces
Radial Notch
Ulnar Notch

A

Head
Styloid Process
Carpal Articular Surfaces
Ulnar Notch

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2
Q

Which of the following are considered important bony landmarks of the ulna? Select all that apply.
Ulnar Notch
Radial Notch
Coronoid Process
Greater Tubercle
Tuberosity
Styloid

A

Radial Notch
Coronoid Process
Tuberosity
Styloid

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3
Q

Which of the following bones are found in the proximal row of carpal bones? Select all that apply.
Scaphoid
Trapezium
Lunate
Pisiform
Capitate

A

Scaphoid
Lunate
Pisiform

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4
Q

Which of the following structures articulate to form the proximal radioulnar joint?
Head of the ulna & ulnar notch of the radius
Head of the radius & the radial notch of the ulna
Distal end of the radius & articular disc with the proximal row of carpal bones

A

Head of the radius & the radial notch of the ulna

Explanation:
The proximal radioulnar joint is formed by the articulation between the head of the radius and the radial notch of the ulna. The distal radioulnar joint is formed by the articulation between the head of the ulna and the ulnar notch of the radius. The radiocarpal joint (wrist joint) is formed by the articulation of the carpal surfaces of the distal radius and the proximal row of carpal bones (excluding the pisiform).

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5
Q

True or False: The radioulnar joints are pivot joints that allow 1 degree of freedom: pronation/ supination.

A

True

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6
Q

True or False: During movement of pronation the radius will cross over the ulna.

A

True

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7
Q

True or False: The radiocarpal joint is a condyloid joint that allows one degree of freedom: Flexion/ Extension.

A

False

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8
Q

Which tendons are easily palpated as they cross the anterior aspect of the wrist? Select all that apply.
Flexor carpi radialis
Flexor digitorum profundus
Palmaris Longus
Pronator Teres
Flexor Carpi Ulnaris

A

Flexor Carpi Radialis
Palmaris Longus
Flexor Carpi Ulnaris

Explanation:
The four tendons that can be palpated when crossing the anterior aspect of the wrist include the (loving lateral to medial): flexor carpi radialis, palmaris longus, flexor digitorum superficialis (FDS), and the flexor carpi ulnaris. Pronator teres doesn’t cross the wrist and the tendons of the flexor digitorum profundus pass deep to the tendons of FDS.

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9
Q

True or False: The thickening of the antebrachial fascia across the anterior aspect of the wrist forms the flexor retinaculum.

A

True

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10
Q

Which muscles are contained in the superficial layer of the anterior compartment of the forearm? Select all that apply.
Flexor digitorum profundus
Pronator quadratus
Pronator teres
Palmaris longus
Flexor digitorum superficialis

A

Pronator Teres
Palmaris Longus

Explanation:
The muscles of the superficial layer of the anterior compartment include the (from lateral to medial at their points of origin): pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris. Pronator quadratus and FDP are contained in the deep layer, and FDS is contained in the intermediate layer of the anterior compartment of the forearm.

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11
Q

Which of the following muscles originate from the medial epicondyle of the humerus? Select all that apply.
Flexor carpi radialis
Flexor carpi ulnaris
Flexor digitorum profundus
Flexor pollicis longus
Palmaris longus

A

Flexor Carpi Radialis
Flexor Carpi Ulnaris
Palmaris Longus

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12
Q

Which of the following muscles will insert onto a metacarpal bone?** Select all that apply.
Flexor carpi radialis
Flexor digitorum superficialis
Pronator quadratus
Flexor carpi ulnaris
Pronator teres

A

Flexor Carpi Radialis
Flexor Carpi Ulnaris

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13
Q

Which of the following will flex the digits of the hand?
Pronator teres
Flexor carpi ulnaris
Flexor digitorum superficialis
Flexor carpi radialis

A

Flexor Digitorum Superficialis

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14
Q

Which of the following muscles is innervated by the ulnar nerve?
Flexor carpi ulnaris
Flexor carpi radialis
Palmaris longus
Flexor pollicis longus

A

Flexor Carpi Ulnaris

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15
Q

Which of the following structures forms the lateral border of the cubital fossa?
Imaginary line between the epicondyles
Brachioradialis
Pronator Teres

A

Brachioradialis

Explanation
The lateral boundary of the cubital fossa is the brachioradialis. An imaginary line between the epicondyles forms the superior boundary and the pronator teres forms the medial boundary. The floor of the space is formed by brachialis & the supinator, and the roof is formed by fascia and skin.

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16
Q

What structures travel through the cubital fossa? Select all that apply.
Terminal end of brachial artery
Ulnar nerve
Median nerve
Proximal parts of the ulna and radial arteries
Biceps tendon

A

Terminal end of brachial artery
Median nerve
Proximal parts of the ulna and radial arteries
Biceps tendon

17
Q

Which of the following structures forms the medial boundary of the cubital tunnel?
Cubital retinaculum
Medial epicondyle
Olecranon

A

Median epicondyle

18
Q

True or False: The median nerve travels through the cubital tunnel.

A

False

Explanation:
The ulnar nerve travels from the arm to the forearm by passing through the cubital tunnel. The median nerve will travel from the arm to the forearm by passing through the cubital fossa.

19
Q

The median nerve travels between which two muscles in the anterior compartment of the forearm?
Pronator teres and flexor pollicis longus
Flexor digitorum superficialis and profundus
Flexor digitorum profundus and flexor pollicis longus

A

Flexor digitorum superficialis and profundus

Explanation:
Upon leaving the cubital fossa, the median nerve will dive between the superficial and deep heads of the pronator teres muscle. It will then continue to course down the anterior aspect of the forearm between FDS and FDP.

20
Q

True or False: The median nerve gives off a deep branch called the anterior interosseous nerve.

A

True

21
Q

True or False: The ulnar nerve will provide motor innervation to the majority of the muscles of the anterior compartment of the forearm.

A

False

Explanation:
The ulnar nerve provides only motor innervation to one and 1/2 muscles of the anterior compartment of the forearm (flexor carpi ulnaris and 1/2 of flexor digitorum profundus). The median nerve (along with its deep branch) supplies the majority of the muscles of the anterior compartment of the forearm.

22
Q

Which of the following nerves supply the skin of the anterior aspect of the forearm? Select all that apply
Medial antebrachial cutaneous
Ulnar
Median
Lateral Antebrachial Cutaneous

A

Medial Antebrachial Cutaneous
Lateral Antebrachial Cutaneous

23
Q

True or False: The common interosseous artery is a branch of the radial artery.

A

False

Explanation:
The common interosseous artery is a branch of the ulnar artery. It gives rise to the anterior and posterior interosseous arteries.

24
Q

True or False: The cubital anastomosis is formed by the branches of the brachial, ulnar and radial arteries.

A

True

25
Q

Which of the following arteries contributes to the formation of the cubital anastomosis? Select all that apply.
Ulnar collaterals (superior and inferior)
Radial and middle collaterals
Recurrent interosseous
Anterior interosseous
Radial recurrent

A

Ulnar collaterals (superior and inferior)
Radial and middle collaterals
Recurrent interosseous
Radial recurrent

26
Q

True or False.
The radius is the laterally located long bone of the forearm.

A

True

27
Q

What is this a depiction of and what are its contents?

A
28
Q

What is this a depiction of and what are the symptoms?

A
29
Q

Name each joint (grey area) and the articulations of each joint (colors)

A
30
Q

What is this called?
What is contained

A

Flexor Retinaculum (transverse carpal ligament)

Median nerve in Carpal Tunnel

31
Q

What is the highlighted area called and what is contained? How many? What tendons are contained in each?

A
32
Q

Label the blue dots

A

Anatomy Exam 3 (JO) (7 decks)

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