Questions Anterior Arm

This muscle is called1 Coracobrachialis

2 Biceps Brachii

3 Triceps

4 Brachialis

5 Biceps Femoris

This muscle is the biceps brachii.

This muscle is called1 Coracobrachialis F

2 Biceps Brachii T

3 Triceps F

4 Brachialis F

5 Biceps Femoris F

This muscle is the coracobrachialis.

This muscle is called1 pectoralis minor

2 subscapularis

3 brachialis

4 biceps brachii

5 coracobrachialis

This muscle is the coracobrachialis.

This muscle is called1 pectoralis minor F

2 subscapularis F

3 brachialis F

4 biceps brachii F

5 coracobrachialis T

This muscle is supplied by the 1 Radial nerve

2 Musculocutaneous nerve

3 Axillary nerve

4 Ulnar nerve

5 Median nerve

This muscle is the brachialis.

It is supplied mainly by the musculocutaneous nerve, but some of its lateral fibres also receives innervation from the radial nerve

This muscle is supplied by the 1 Radial nerve T

2 Musculocutaneous nerve T

3 Axillary nerve F

4 Ulnar nerve F

5 Median nerve F

Coracobrachialis attaches to1 Acromion

2 Lateral aspect of the humerus

3 Distal aspect of the humerus

4 Coracoid

5 Medial aspect of the humerus

Coracobrachialis arises from the coracoid process of the scapula and attaches to the middle third of the medial aspect of the humerus

Coracobrachialis attaches to1 Acromion F

2 Lateral aspect of the humerus F

3 Distal aspect of the humerus F

4 Coracoid T

5 Medial aspect of the humerus T

The biceps brachii muscle lies in the1. Anterior compartment of the arm

2. Medial compartment of the arm

3. Anterior compartment of the forearm

4. Lateral compartment of the arm

5. Posterior compartment of the arm

The biceps brachii muscle lies in the1. Anterior compartment of the arm T

2. Medial compartment of the arm F

3. Anterior compartment of the forearm F

4. Lateral compartment of the arm F

5. Posterior compartment of the arm F

This muscle is called the 1 Coracobrachialis

2 Triceps

3 Biceps Brachii

4 Brachialis

5 Anconeus

This muscle is the brachialis. It arises from the distal half of the anterior surface of the distal half of the humerus and attaches to the coronoid process of the ulna in the forearm

It is supplied mainly by the musculocutaneous nerve, but some of its lateral fibres also receives innervation form the radial nerve

It flexes the elbow

This muscle is called the 1 Coracobrachialis F

2 Triceps F

3 Biceps Brachii F

4 Brachialis T

5 Anconeus F

Brachialis muscle lies1 Anterior to biceps brachii

2 Posterior to subscapularis

3 Anterior to pectoralis minor

4 Posterior to biceps brachii

5 Posterior to subscapularis

Brachialis arises from the distal half of the anterior surface of the humerus and attaches to the coronoid process of the ulna in the forearm. It lies in the anterior compartment of the arm immediately posterior to biceps brachii

Brachialis muscle lies1 Anterior to biceps brachii F

2 Posterior to subscapularis F

3 Anterior to pectoralis minor F

4 Posterior to biceps brachii T

5 Posterior to subscapularis F

Brachialis muscle inserts onto1 Coracoid process of the ulna

2 Coronoid process of the ulna

3 Coracoid process of the radius

4 Coronoid process of the radius

5 Olecranon process of the ulna

Brachialis arises from the distal half of the anterior surface of the humerus and attaches to the anterior aspect of the coronoid process of the ulna in the forearm

Brachialis muscle inserts onto1 Coracoid process of the ulna F

2 Coronoid process of the ulna T

3 Coracoid process of the radius F

4 Coronoid process of the radius F

5 Olecranon process of the ulna F

This muscle is innervated by the1. Radial nerve

2. Musculocutaneous nerve

3. Obturator nerve

4. Ulnar nerve

5. Median nerve

This muscle is the biceps brachii. It has two origins, • the long head arises from the supraglenoid tubercle • the short head arises from the coracoid process of the scapula

It attaches onto the radial tuberosity on the proximal shaft of the radius in the forearm.It is supplied by the musculocutaneous nerve

This muscle is innervated by the1. Radial nerve F

2. Musculocutaneous nerve T

3. Obturator nerve F

4. Ulnar nerve F

5. Median nerve F

Coracobrachialis muscle originates from1 Coracoid process of the clavicle

2 Coronoid process of the ulna

3 Coracoid process of the scapula

4 Acromion process of the scapula

5 Glenoid process of the clavicle

Coracobrachialis arises from the coracoid process of the scapula and attaches to the middle third of the medial aspect of the humerus

Coracobrachialis muscle originates from1 Coracoid process of the clavicle F

2 Coronoid process of the ulna F

3 Coracoid process of the scapula T

4 Acromion process of the scapula F

5 Glenoid process of the clavicle F

With regards to the Biceps Brachii 1 It lies anterior to brachialis

2 The long head arises from the coracoid process

3 It is supplied by the ulnar nerve

4 It is supplied by the musculocutaneous nerve

5 It pronates the forearm

This muscle is the biceps brachii. It has two origins, • the long head arises from the supraglenoid tubercle • the short head arises from the coracoid process of the scapula

It attaches onto the radial tuberosity on the proximal shaft of the radius in the forearm

It is supplied by the musculocutaneous nerve

It is the most powerful supinator of the forearm and also flexes the elbow

With regards to the Biceps Brachii 1 It lies anterior to brachialis T

2 The long head arises from the coracoid process F

3 It is supplied by the ulnar nerve F

4 It is supplied by the musculocutaneous nerve T

5 It pronates the forearm F

This muscle 1 adducts the arm

2 flexes the arm

3 abducts the arm

4 flexes the forearm

5 extends the arm

This muscle is the coracobrachialis. It arises from the coracoid process of the scapula and attaches to the middle third of the medial aspect of the humerus

It is supplied by the musculocutaneous nerve.

It is a weak flexor and adductor of the arm

This muscle 1 adducts the arm T

2 flexes the arm T

3 abducts the arm F

4 flexes the forearm F

5 extends the arm F

Brachialis muscle arises from1 Anterior aspect of radius

2 Lateral aspect of humerus

3 Anterior aspect distal humerus

4 Posterior aspect distal humerus

5 Posterior aspect proximal ulna

Brachialis arises from the distal half of the anterior surface of the humerus and attaches to the coronoid process of the ulna in the forearm

Brachialis muscle arises from1 Anterior aspect of radius F

2 Lateral aspect of humerus F

3 Anterior aspect distal humerus T

4 Posterior aspect distal humerus F

5 Posterior aspect proximal ulna F

This muscle 1. Flexes the elbow joint

2. Extends the elbow joint

3. Pronates the forearm

4. Supinates the forearm

5. Abducts the arm

This muscle is the biceps brachii.

It is the chief supinator of the forearm and also flexes the elbow

This muscle 1. Flexes the elbow joint T

2. Extends the elbow joint F

3. Pronates the forearm F

4. Supinates the forearm T

5. Abducts the arm F

This muscle is the coracobrachialis. It is supplied by the musculocutaneous nerve.The medial and lateral pectoral nerves supply the Pectoralis Major and Minor.The upper subscapular nerve supplies the subscapularisThe radial nerve supplies triceps and extensors of the forearm

This muscle is supplied by 1 musculocutaneous nerve

2 radial nerve

3 lateral pectoral nerve

4 medial pectoral nerve

5 upper subscapular nerve

This muscle is the coracobrachialis. It is supplied by the musculocutaneous nerve.The medial and lateral pectoral nerves supply the Pectoralis Major and Minor.The upper subscapular nerve supplies the subscapularisThe radial nerve supplies triceps and extensors of the forearm

This muscle is supplied by 1 musculocutaneous nerve T

2 radial nerve F

3 lateral pectoral nerve F

4 medial pectoral nerve F

5 upper subscapular nerve F

The biceps brachii muscle1 Is attached to the humerus

2 Has a long head that arises from the coracoid process

3 Is the chief supinator of the forearm

4 Extends the arm at the glenohumeral (shoulder) joint

5 Is attached to the scapula

Biceps brachii has no attachment to the humerus. It is the short head, not the long head, which is attached to the tip of the coracoid

process along with coracobrachialis.

Biceps brachii is a flexor, not extensor, of the shoulder joint.

Both heads of biceps brachii arise from the scapula: the short head from the coracoid process and the long head from the supraglenoid tubercle.

The biceps brachii muscle1 Is attached to the humerus F

2 Has a long head that arises from the coracoid process F

3 Is the chief supinator of the forearm T

4 Extends the arm at the glenohumeral (shoulder) joint F

5 Is attached to the scapula T

The Axillary (circumflex) nerve1 arises from the medial cord of the brachial plexus

2 innervates the deltoid and teres major muscles

3 has no cutaneous branches

4 supplies supraspinatus

5 is intimately related to the humerus at the level of the surgical neck

The axillary nerve arises from the posterior cord of the brachial plexus, not medial cord.The axillary nerve supplies deltoid and teres minor, not teres major!The axillary nerve supplies the skin on the upper, lateral aspect of the arm (the so-called ‘regimental badge area’)Supraspinatus is supplied by the suprascapular nerve, not axillary nerve.The nerve is in contact with the humeral periosteum on the posterolateralaspect of the surgical neck.

The Axillary (circumflex) nerve1 arises from the medial cord of the brachial plexus F

2 innervates the deltoid and teres major muscles F

3 has no cutaneous branches F

4 supplies supraspinatus F

5 is intimately related to the humerus at the level of the surgical neck

T

Complete transection of the musculocutaneous nerve at its origin1 will result in impairment of supination of forearm

2 Will cause impaired extension of elbow joint

3 will result in loss of sensation over the lateral aspect of forearm

4 will result in weakened flexion of elbow joint

5 loss of cutaneous sensation on the anterior aspect of the elbow region

The musculocutaneous nerve is the nerve of the anterior compartment of the arm and supplies biceps brachii, brachialis and coracobrachialis, before continuing as the lateral cutaneous nerve of forearm. Thus injury to the musculocutaneous nerve will result in weakened elbow flexion (due to paralysis of brachialis and biceps). However, elbow flexion will not be completely abolished as brachioradialis and the muscles arising from the common flexor tendon (none of which are innervated by the musculocutaneous nerve) will be able to flex the elbow to some extent. Injury to the musculocutaneous nerve will result in significant impairment of supination due to paralysis of biceps brachii, the principal supinator.

Complete transection of the musculocutaneous nerve at its origin1 will result in impairment of supination of forearm T

2 Will cause impaired extension of elbow joint F

3 will result in loss of sensation over the lateral aspect of forearm

T

4 will result in weakened flexion of elbow joint T

5 loss of cutaneous sensation on the anterior aspect of the elbow region

T