Spaces, Fossa, Brachial Muscles And Brachial Vessels

Question 1

Borders of the quadrangular space

Answer 1

Teres minor
Teres major
Long head of triceps
Humerus

Question 2

What goes through the quadrangular space

Answer 2

Axillary nerve

Posterior circumflex humeral vessels

Question 3

Borders of the triangular space

Answer 3

Teres minor
Teres major
Long head of triceps

Question 4

Contents of the triangular space

Answer 4

Circumflex scapular vessels

Question 5

Borders of the triangular interval

Answer 5

Teres major
Long head of triceps
Lateral head of triceps

Question 6

Contents of the triangular interval

Answer 6

Radial nerve

Deep brachial vessels (profound a brachii)

Question 7

Anterior compartment of brachial muscles

Answer 7

Flexors of forearm:
Coracobrachialis
Biceps brachii (long and short head)
Brachialis

Question 8

Innervation of the anterior brachial muscles

Answer 8

Musculocutaneous nerve

Question 9

Median nerve and brachial artery run posterior and medial to the:

Answer 9

Coracobrachialis

Question 10

_____ artery of humerus enters at distal end of the coracobrachialis

Answer 10

Nutrient

Question 11

Coracobrachialis is pierced by:

Answer 11

Musculocutaneous nerve

Question 12

OR, INS, NS, and AC of coracobrachialis m

Answer 12

OR: Coracoid process of scapula
INS: Medial surface of humerus
NS: Musculocutaneous
AC: Flexion and addiction of arm

Question 13

OR, INS, NS, AC of Biceps brachii

Answer 13

OR: (2 heads) Short head: coracoid process of scapula. Long head: supraglenoid tubercle of scapula (passes through intertubercular sulcus under the transverse ligament)

INS: Radial tuberosity
Bicipital aponeurosis

NS: Musculocutaneous

AC: Flexes arm (weak)
Flexes forearm (stronger flexor with forearm at 90 degrees and supinate)
Supinates forearm (strongest forearm supinator with forearm at 90 degrees)

Question 14

Workhorse of the anterior compartment- deep to biceps brachiii- pure flexor

Answer 14

Brachialis

Question 15

OR, INS, NS, AC of Brachialis

Answer 15

OR: Anterior humerus

INS: Coranoid process of ulna (ulnar tuberosity)

NS: Musculocutaneous

AC: Flexes forearm

Question 16

Posterior compartment of the brachial muscles (2)

Answer 16

Triceps (long head, lateral head, medial head)

Anconeus

Question 17

Posterior compartment of the brachial muscles is innervated by the:

Answer 17

Radial nerve

Question 18

OINA of Triceps brachii

Answer 18

OR: Long head- infraglenoid tubercle of scapula
Lateral head: posterior humerus, superior to the radial groove
Medial head: Posterior humerus, inferior to the radial groove

INS: Olecranon process of ulna

NS: Radial nerve

AC: Extends forearm
Extends and adducts arm (long head- weak)

Question 19

OINA of Anconeus

Answer 19

OR: Lateral epicondyle of humerus

INS: Lateral olecranon of ulna
Posterior surface of the ulna

NS: Radial nerve

AC: Extends forearm
Tenses elbow joint capsule to prevent entrapment (keeps it from getting pinched)
Abducts the ulna during pronation

Question 20

Triangular space of the elbow (anterior) with a roof and floor

Answer 20

Cubital fossa

Question 21

Boundaries of the cubital fossa

Answer 21

Superior: line from medial to lateral epicondyle

medial: common flexor forearm tendon and lateral border of pronator teres

Lateral: medial border of extensor tendon from lateral epicondyle- Brachioradialis

Floor: Brachialis and supinator

Roof: skin, median cubital vein, fat, fascia, and bicepital aponeurosis

Question 22

What runs through the cubital fossa

Answer 22

Medial to lateral:

Median nerve
Terminal brachial artery (radial and ulnar branches form at apex)
Biceps tendon
Deep radial nerve

Question 23

Brachial artery is below the

Answer 23

Median nerve

Question 24

Brachial artery and median nerve are located

Answer 24

Under bicipital aponeurosis

Over biceps brachii

Question 25

Deep radial nerve enters: Becomes

Answer 25

Enters supinator, goes through and exits as the posterior interosseous nerve

Question 26

Brachial artery branches and becomes

Answer 26

Radial artery and ulnar artery opposite the neck of the radius

Question 27

Brachial artery is a continuation of the:

Answer 27

Axillary artery

Question 28

Brachial artery begins at the

Answer 28

Lower border of teres major

Question 29

Brachial artery ends:

Answer 29

In the cubital fossa

Question 30

Where does the brachial artery run

Answer 30

Bicipital groove, anterior to the triceps and brachialis, medial to the humerus

Question 31

Brachial artery enters cubital fossa with the : Where

Answer 31

With the median nerve | Anterior to the medial supercondylar ridge

Question 32

Nutrient artery to humerus at the coracobrachialis

Answer 32

Brachial artery

Question 33

Brachial artery comes out of the

Answer 33

Teres minor

Question 34

Brachial artery becomes the

Answer 34

Deep brachial artery

Question 35

Deep brachial artery spilts into:

Answer 35

Middle and lateral radial collateral branches

Question 36

Radial collateral branch annastimose with the

Answer 36

Recurrent radial artery

Question 37

Middle collateral branch runs from the

Answer 37

Back side of the arm and around

Question 38

2 branches of the medial side of the brachial split and become

Answer 38

Superior ulnar collateral Inferior ulnar collateral

Question 39

Inferior ulnar collateral runs

Answer 39

In front of the medial epicondyle

Question 40

Superior ulnar collateral runs

Answer 40

Behind the medial condyle

Question 41

Profunda brachii, AKA:

Answer 41

Deep brachial artery

Question 42

Brachial artery spilts into the

Answer 42

Radial and ulnar arteries

Question 43

Middle collateral branch has recurrent branch coming off of:

Answer 43

post. Interosseous membrane

Question 44

Blockage of brachial artery in the medial condyle means:

Answer 44

Cannot get blood down to the artery

Question 45

The peri-elbow collateral circulation allows:

Answer 45

Flow to continue distally when the forearm is fully flexed with resulting near occlusion of the brachial artery. It is acceptable to clip the brachial rather distal to the profundal branch bc of this collateral system

Question 46

Superficial veins of the arm

Answer 46

Superficial: cephalic, basilic, medial cubital Deep: Brachial (

Question 47

Where does the brachial vein form

Answer 47

At the elbow by the confluence of the radial and ulnar veins

Question 48

The brachial vein is joined by:

Answer 48

Basilic to form axillary vein