morphological plan of the upper limbs

Question 1

What is the nerve supply to the upper limb

Answer 1

The brachial plexus

Question 2

Outline the arrangement if the upper limb

course muscle groups——-> fine muscle groups

Answer 2

shoulder, arm, elbow, forearm, wrist and hand

Question 3

Name the skeletal components of the upper limb

Answer 3

Pectoral girdle, humerus, radius, ulna, carpal bones (8), metacarpals (5), and phalanges

Question 4

What is the space between the ulna and radius called

Answer 4

The interosseous membrane

Question 5

Outline the components of the radius

Answer 5

The head, the radial tuberosity (where the biceps brachii attaches), styloid process of the radius

Question 6

Outline the components of the ulna

Answer 6

Olecranon ( back of the elbow), ulna tuberosity (where brachialis attaches), styloid process of the ulna

Question 7

What movements can the upper limbs perform

Answer 7

Flexion/ extension, abduction/ adductions, lateral/ medial rotation, pronation/ supination, circumduction and opposition

Question 8

What are the joints of the upper limb

Answer 8

glenohumeral (shouler) joint (ball n socket)
elbow joint (hinge joint)
radiocarpal (wrist) joint

Question 9

pectoralis major is a muscle of the upper limb, what is its origin and insertion

Answer 9

origin: clavicle, sternum and costal cartilage
inserts: bicipital groove

Question 10

The deltoid is a muscle of the upper limb, what is its origin and insertion

Answer 10

origin: Spine of the scapula, acromion and lateral part of clavicle
insertions: deltoid tuberosity

Question 11

What are the muscles of the upper arm

Answer 11

biceps brachii
brachialis
coracobrachialis
triceps brachii

Question 12

Where does biceps brachii originate and insert into

what is its arterial and nerve supply

Answer 12

Origin: Short head: coracoid process of the scapula.
Long head: supraglenoid tubercle

insertion: Radial tuberosity and bicipital aponeurosis
into deep fascia on the medial part of the
forearm

arterial: brachial artery
nerve: musculocutaneous nerve

Question 13

Where does brachialis originate and insert into

What is the arterial and nerve supply to brachialis

Answer 13

Origin: Distal half of anterior surface of the humerus

Insertion: Tuberosity of ulna

arterial: brachial artery

nerve supply: musculocutaneous nerve and radial nerve.

Question 14

Where does coracobrachialis originate and insert into

What is the arterial and nerve supply to the coracobrachialis

Answer 14

origin: coracoid process
insertion: anteromedial surface of the humerus
arterial: brachial artery and musculocutaneous nerve

Question 15

Where do triceps brachii originate and insert into

What is the arterial and nerve supply to triceps brachii

Answer 15

origin: Long head - infraglenoid tubercle of the scapula
Medial head - posterior surface of the humerus
Lateral head - posterior surface of the humerus

insertion: olecranon of ulna

arterial: deep brachial artery and superior ulnar
collateral artery

nerve supply: radial nerve