UE Fact/QA KH (Extra)

Question 1

What nerve passes through the surgical neck of the Humerus?

Answer 1

Axillary Nerve

Question 2

What nerve passes through the Radial Groove of the Humerus?

Answer 2

Radial Nerve

Question 3

IF there is a fracture in distal part of the Humerus, then there is a danger of which nerve damage?

Answer 3

Median Nerve

Question 4

Fracture in medial epicondyle likely to cause damage to which nerves?

Answer 4

Ulnar Nerve

Question 5

Artery that supplies the Supraspinous and Infraspinous muscles?

Answer 5

Suprascapular artery

Question 6

Blood supply to the glenohumeral joint

Answer 6

Posterior Circumflex humeral artery

Question 7

What muscles form the rotator cuff?

Answer 7

Subscapularis, infraspinatus, supraspinatus, and Teres Minor

Question 8

Action and Innervation of Triceps Brachii muscle

Answer 8

Responsible for elbow extension and innervated by the Radial nerve

Question 9

Action and Innervation for Teres minor

Answer 9

Lateral Rotation of the shoulder and innervated by the Axillary Nerve

Question 10

Action and Innervation of Teres Major

Answer 10

Role is to perform adduction and medial rotation at the shoulder joint. It is innervated by the subscapular nerve.

Question 11

Action and Innervation of Latissimus Dorsi

Answer 11

Adduction, extension and medial rotation at the shoulder joint. Innervated by the thoracodorsal nerve.

Question 12

Action and Innervation of Coracobrachialis muscle

Answer 12

Adduction and flexion at the shoulder joint. Innervated by the musculocutaneous nerve

Question 13

Origin and Action of Biceps Brachi

Answer 13

Long head originates from the supraglenoid tubercle, while the short head from the coracoid process. Muscle is responsible for elbow flexion.

Question 14

Innervation of Biceps Brachii muscle

Answer 14

Innervated by the musculocutaneous nerve

Question 15

Action and Innervation of Subscapularis muscle

Answer 15

Performs adduction and medial rotation at the shoulder joint. Subscapular nerve innervates it.

Question 16

Action and Innervation of Serratus Anterior Muscle

Answer 16

This muscle protracts and rotates the scapula. It is innervated by the long thoracic nerve

Question 17

Which muscle/s have insertion point on the greater tubercle of the Humerus?

Answer 17

Supraspinatus, Infraspinatus, and teres minor muscle.

Question 18

Which muscle/s have insertion point on the Lesser tubercle of the Humerus?

Answer 18

Subscapularis Muscle

Question 19

Muscle that has an insertion point on Intertubercular sulcus

Answer 19

Latissimus Dorsi Muscle

Question 20

Which muscle gets inserted to Deltoid Tuberosite on the shaft of the humerous?

Answer 20

Deltoid Muscle

Question 21

Deltoid Muscle likely to have paralysis effect due to injury in which nerve?

Answer 21

Axillary

Question 22

Is Teres Major considered part of Rotator Cuff muscle?

Answer 22

NOPE

Question 23

Which nerve/artery passes through the Quadrangular Space?

Answer 23

Axillary nerve and Posterior humeral Circumflex Artery.

Question 24

Innervation of Subscapularis Muscle

Answer 24

Upper and Lower Subscapularis nerves

Question 25

Which arteries will be most likely damaged, after a fracture at the surgical neck of the humerus?

Answer 25

Anterior Humeral Circumflex Artery and Posterior Humeral Circumflex Artery

Question 26

What muscle(s) divide the axillary artery in 3 parts?

Answer 26

Pec Minor Muscle

Question 27

A man falls from a high ladder and is known to have sustained injury in the right brachial plexus (plexus brachialis). When he recovered, he went back to the doctor who noticed that there was no winging of the scapula, and abduction could not be initiated by the patient unless help was given by abducting the arm through the first 45 degrees. What nerve might be injured?

Answer 27

Suprascapular Nerve

Question 28

What muscles does the coracoid process of the scapula (processus coracoideus) serve as an attachment point for?

Answer 28

Coracobrachialis, Short head of Brachialis Biceps, and Pec minor muscle

Question 29

A surgeon tied off, due to the bleeding, the suprascapular artery (arteria suprascapularis) as it crossed the top of the scapula. She did it knowing that the direct collateral branches of one artery would supply the normal distribution of the suprascapular artery. What was that artery?

Answer 29

Circumflex Scapular Artery

Question 30

The axillary artery (arteria axillaris) is a continuation of what artery?

Answer 30

Subclavian A.

Question 31

30 year old male patient who works out regularly presents with skin sensation disturbances on the radial part of the forearm, and a weakened flexion in the elbow. Overuse of the coracobrachialis could be the cause. What nerve might be entrapped?

Answer 31

Musculocutaneous nerve

Question 32

What nerve terminates as the upper lateral cutaneous nerve of the arm (nervus cutaneus brachii lateralis superior) that supplies the posterior skin of the arm?

Answer 32

Axillary nerve

Question 33

What muscle defines the surface anatomy of the dorsal upper arm and forms a thick tendon that inserts at the olecranon of the ulna?

Answer 33

Triceps Brachii muscle