ARM, Cubital fossa, Movements of elbow

Question 1

Has two heads the long and the short head

Answer 1

Biceps brachii

Question 2

Passes from lesser to greater tubercle of the humerus and converts the intertubercular groove into a canal for the tendon of the long head of the triceps

Answer 2

Transverse humeral ligament

Question 3

When elbow is extended, what is the flexor of the elbow?
As elbow flexion is 90 degrees or more, BLANK with the forearm in supination produces flexion
With forearm in pronation, BLANK are primary supinator of forearm

Answer 3

Biceps

Question 4

Bicipital aponeurosis?

Answer 4

Runs from bicep tendon into cubital fossa

Question 5

Only pure elbow flexor

Called the DRINKING MUSCLE

Answer 5

Brachialis

Question 6

Flexes and adducts the arm and stabilizes the shoulder joint?

Answer 6

Coracobrachialis

Question 7

Chief extensor of the elbow

Has a long head, lateral head, and medial head

Answer 7

Tricep muscle

Question 8

Crosses the shoulder joint, helps stabilize the adducted joint by serving as a shunt muscle, AKA resists inferior displacement of the head of the humerus with deltoid and coracobrachialis

Answer 8

Long head of the triceps

Question 9

Continuation of the axillary artery
Provides main arterial supply of the arm
Begins at inferior border of teres major and ends in the cubital fossa, where it then divides into radial and ulnar arteries
Relatively superficial

Answer 9

Brachial artery

Question 10

The brachial artery accompanies what?

Answer 10

Median nerve inferolaterally

Question 11

Branches of brachial artery?

Answer 11

Profunda brachii artery (deep artery of arm)

Superior/ Inferior ulnar collateral artery

Question 12

What are the veins of the arm?

Answer 12

Cephalic
Basilic
Brachial

Question 13

Begins at elbow union of ulnar and radial arteries and ends by merging with basilic vein to form axillary vein?

Answer 13

Brachial vein

Question 14

Nerves of the arm?

Answer 14

Median
Ulnar
Musculotaneous
Radial

Question 15

This nerve is formed in the axilla

Answer 15

Median nerve

Question 16

This nerve distally passes anterior to the insertion of the teres major of medial side of brachial artery
Pierces medial intermuscular septum

Answer 16

Ulnar nerve

Question 17

This nerve pierces coracobrachialis then continues distally between brachialis and biceps.
After piercing: it emerges lateral to the biceps as lateral cutaneous nerve of the forearm

Answer 17

Musculotaneous

Question 18

This nerve supplies the muscles in the posterior compartment of the arm and forearm.
Posterior to brachial artery, medial to humerus, and anterior to long head of triceps
Divides into deep and superficial branches in cubital fossa

Answer 18

Radial nerve

Question 19

Contents of the cubital fossa?

Answer 19

Terminal part of brachial artery
Radial and ulnar arteries
Biceps brachii tendon
Deep accompanying veins
Median nerve
radial nerve

Question 20

Superiorly boundary of Cubital fossa?

Answer 20

Imaginary line connecting medial and lateral epicondyle

Question 21

Medially boundary of Cubital fossa?

Answer 21

Pronator teres

Question 22

Laterally boundary of Cubital fossa?

Answer 22

brachioradialis

Question 23

Floor of Cubital fossa?

Answer 23

Brachialis and supinator

Question 24

Roof of Cubital fossa?

Answer 24

Continuity of brachial and antebrachial fascia

Question 25

Elbow joint characteristics?

Answer 25

Hinge synovial

Flexion and extension occur here

Question 26

Pivot synovial, Allows for movement of the head of radius on the ulna

Answer 26

Proximal radioulnar

Question 27

Attaches to the ulna, forms a ring encircling the head of the radius

Answer 27

Anular ligament

Question 28

Lateral, fan like
Holds head of radius in the radial notch of the ulna
Permits pronation and supination
Extends from lateral epicondyle and blends distally with annular ligament

Answer 28

Radial collateral ligament

Question 29

Extends from the medial epicodyle to the coronoid process and olecrannon of the ulnar
Consists of 3 bands what are they?

Answer 29

Ulnar collateral ligament
Anterior- strongest
Posterior- weakest
Oblique- deepens socket for trochlea of humerus

Question 30

Pivot type of synovial joint

Allows movement of the head of the radius of the ulna

Answer 30

Proximal (Superior) Radio-Ulnar joint

Question 31

Ligaments within Proximal (Superior) radio-ulnar joint?

Answer 31

Anular- forms a ring that completely encircles the head of the radius
Sacciform recess of this joint