Anatomy 201

Question 1

Rotator cuff muscles are also known as ______.

Name the muscles:(Mnemonic:SITS)

Answer 1

“Musculotendinous cuff
“Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

Question 2

Supraspinatus is the ______

Answer 2

Primary abductor of the arm (0-15 degrees)

Question 3

Infraspinatus is the ____

Answer 3

Main external rotator of the shoulder

Question 4

Subscapularis is the _____

Answer 4

Primary medial rotator of the arm

Question 5

Rotator cuff muscles have a primary function of stabilizing ____ joint

Answer 5

Glenohumeral joint

Question 6

Which of the muscle of the rotator cuff muscles is the most ruptured?

Answer 6

Supraspinatus tendon

Question 7

Which of the muscle of the rotator cuff is most susceptible to inflammation as in ROTATOR CUFF TENDONITIS?

Answer 7

Supraspinatus tendon

This is because it’s tendon always rubs against the coracoacromial joint during abduction

Question 8

All rotator cuff muscles rotate the arm except ___

Answer 8

SUPRASPINATUS

Question 9

The deltoid muscle is the ____

Answer 9

Main abductor of the arm(15-90 degrees)

Question 10

The ____ part of the deltoid is the strongest part?

Answer 10

Middle /ACROMIAL (due to multipennate fibres)

Question 11

What structures pierce the CLAVIPECTORAL FASCIA?
Mnemonic: CALL

Answer 11

Cephalic vein
Acromio-thoracic Artery /Thoracoacromial Artery
Lymphatic of breast and pectoral region to the apical axillary nodes
Lateral pectoral nerve

Question 12

Borders of Triangle of Auscultation ?

Answer 12

Inferolateral part of Trapezius
Upper border of Latissimus Dorsi
Medial border of Scapula

Question 13

Structures found in the floor of triangle of auscultation?

Answer 13

6th rib
7th rib
6th ICS
Rhomboid major

Question 14

Clinical relevance of triangle of auscultation?

Answer 14

Auscultation of pulmonary sounds as the triangle overlies the upper part of the LOWER/INFERIOR LOBE OF THE LUNG

Question 15

The anterior compartment muscles of the arm are innervated by _____

Answer 15

Musculocutaneous Nerve

Brachialis muscle also has innervations from radial Nerve for proprioception

Question 16

The muscles of the anterior compartment of arm are all involved in ______

Answer 16

Flexion

Question 17

_____ is the primary and most powerful supinator of the forearm

Answer 17

BICEPS BRACHII

Question 18

_____ is the main flexor of the forearm

Answer 18

BRACHIALIS

Question 19

The muscles of the anterior compartment of arm are supplied by ____

Answer 19

Muscular branches of brachial artery

Question 20

The muscle of posterior compartment of the arm-triceps brachii- is innervated by ____ and supplied by____

Answer 20

Radial Nerve
Profunda brachii artery

Question 21

Rupture of long head of biceps brachii leads to ____

Answer 21

bulge seen on flexing the elbow (POPEYE SIGN)

Question 22

The muscle involved in screwing movements is ____

Answer 22

BICEPS BRACHII

Question 23

The brachial plexus passes between which two muscles in the neck?

Answer 23

ANTERIOR SCALENE MUSCLE
MEDIAL SCALENE MUSCLE

Question 24

The Roots and Trunks of the brachial plexus are found where?

Answer 24

Root of the Neck

Question 25

The Divisions of the brachial plexus is found?

Answer 25

Behind the clavicle

Question 26

The cords of the brachial plexus is found in the?

Answer 26

Axilla

Question 27

The axillary artery is separated into 3 parts by what muscle?

Answer 27

PECTORALIS MINOR MUSCLE 1st- proximal to pectoralis minor 2nd- deep/behind to pectoralis minor 3rd- distal to pectoralis minor NOTE: Each part number corresponds to the number of branches that each of the parts give. Therefore axillary artery gives 6 branches; Mnemonic: SALSAP

Question 28

At the lower border of ____ muscle, the axillary artery becomes brachial artery?

Answer 28

TERES MAJOR MUSCLE

Question 29

The Pisiform bone of the wrist is found in what muscle?

Answer 29

Flexor Carpi Ulnaris

Question 30

Ulnar artery and Ulnar Nerve are found _____ to Flexor Carpi Ulnaris’ tendon.

Answer 30

Lateral

Question 31

The ________ muscle is absent in 15% of people

Answer 31

PALMARIS LONGUS

Question 32

The ____ Nerve is found directly below the tendon of Palmaris Longus

Answer 32

Median Nerve

Question 33

The superficial compartment of the anterior forearm share a common flexor origin:

Answer 33

Front of the medial epicondyle

Question 34

What is the most medial muscle in the superficial anterior compartment of the forearm ?

Answer 34

FLEXOR CARPI ULNARIS

Question 35

What is the most lateral muscle in the superficial anterior compartment of the forearm ?

Answer 35

PRONATOR TERES Also, the smallest muscle in the superficial anterior compartment of the forearm

Question 36

The _____ Nerve passes between the deep and superficial head of the pronator teres?

Answer 36

MEDIAN NERVE

Question 37

_____ separates the median Nerve from Ulnar Artery.

Answer 37

DEEP HEAD OF PRONATOR TERES

Question 38

The chief gripping muscle is ____

Answer 38

Flexor Digitorum Profunda

Question 39

Largest branch of Axillary Artery?

Answer 39

Subscapular Artery

Question 40

The ___ and _____ arteries form an anastomostic around the surgical neck of humerus.

Answer 40

Anterior and Posterior circumflex arteries Fracture at surgical neck of humerus cause damage to these arteries

Question 41

Roof of Cubital Fossa:

Answer 41

1. Skin 2. Superficial fascia containing: cephalic vein, lateral cutaneous nerve of forearm, basilic vein, medial cutaneous nerve of forearm & medial cubital vein 3. Deep fascia 4. Bicipital aponeurosis

Question 42

Floor of cubital Fossa:

Answer 42

Supinator muscle Brachialis

Question 43

Contents of Cubital Fossa:

Answer 43

Major contents from medial to lateral are; i. The median nerve ii. The brachial artery. The brachial artery bifurcates into the radial and ulnar arteries Deep accompanying veins of the arteries. iii.The tendon of the biceps brachii muscle. iv. Radial Nerve; posterior interosseous Nerve

Question 44

Base of Cubital Fossa;

Answer 44

Horizontal imaginary line drawn across the medial and lateral epicondyles

Question 45

Medial and Lateral Borders of Cubital Fossa:

Answer 45

Medial (Ulnar) Lateral border of pronator teres muscle Lateral (radial) Medial border of brachioradialis muscle.

Question 46

Apex of Cubital Fossa:

Answer 46

Meeting point of medial and lateral boundaries

Question 47

Upper triangular space Is bounded by and contains:

Answer 47

Teres Major-lower Long head of triceps-lateral Teres minor-upper Circumflex scapular Artery

Question 48

Lower triangular space or triangular interval is bounded by and contains:

Answer 48

Medial-long head of triceps Lateral-humerus Upper- teres major Radial Nerve and profunda branchii Artery

Question 49

Quadrangular space is bounded by and contains:

Answer 49

Upper-teres minor Lower- teres Major Lateral- humerus Medial- long head of triceps Posterior circumflex artery and axillary nerve