Lab Practical 2 Info

deltoid

In - axillary n.

O - acromion & spine of scapula

I - deltoid tuberosity of humorous

biceps brachii long head

In - musculocutaneous n.

O - supraglenoid tubercle of scapula

I - radial tuberosity & bicipital aponeurosis

biceps brachii short head

In - musculocutaneous n.

O - coracoid process of scapula

I - radial tuberosity & bicipital aponeurosis

coracobrachialis

In - musculocutaneous n.

O - coracoid process

I - medial humerus

brachialis

In - musculocutaneous n.

O - anterior humerus

I - tuberosity of ulna

anconeus

In: radial n.

O: lateral epicondyle of humerus

I: olecranon

brachioradialis

In: radial n.

O: proximal supracondylar ridge (humerus)

I: lateral surface of distal radius

extensor carpi radialis longus

In: radialis n.

O: distal lateral supracondylar ridge of humerus

I: base of 2nd metacarpal

extensor carpi radialis brevis

In: radial n.

O: lateral epicondyle humerus

I: base of 3rd metacarpal

extensor digitorum

In: posterior interosseous n.

O: lateral epicondyle humerus

I: extensor expansion digits 2-5

extensor indicies

In: posterior interosseous n.

O: posterior surfaces radius & ulna

I: extensor expansion digit 2

extensor digiti minimi

In: posterior interosseous n.

O: lateral epicondyle humerus

I: extensor expansion digit 5

extensor carpi ulnaris

In: posterior interosseous n.

O: lateral epicondyle humerus

I: base of 5th metacarpal

abductor pollicis longus

In: posterior interosseous n.

O: posterior surfaces radius & ulna

I: base of 1st metacarpal

extensor pollicis brevis

In: posterior interosseous n.

O: posterior surfaces radius & ulna

I: proximal phalanx 1st digit

extensor pollicis longus

In: posterior interosseous n.

O: posterior surfaces radius & ulna

I: distal phalanx 1st digit

sternocleidomastoid sternal head

In: spinal accessory n. (motor), spinal n. C3-C4 (sensory)

O: manubrium of sternum

I: mastoid process (lateral half of superior nuchal line)

sternocleidomastoid clavicular head

In: spinal accessory n. (motor), spinal n.C3-C4 (sensory)

O: superior surface of medial clavicle

I: mastoid process (lateral half of superior nuchal line)

scalenes (anterior, middle, posterior)

In: cervical spinal n.

O: TP of C2-C7 (dep on muscle)

I: 1st rib (anterior & middle), 2nd rib (posterior)

sternohyoid

O: manubrium & sterno end of clavicle

I: hyoid

omohyoid

O: intermediate tendon, scapula near suprascapular notch

I: hyoid

sternothyroid

O: manubrium

I: thyroid cartilage

thyrohyoid

O: thyroid cartilage

I: hyoid

pectoralis major

In: medial & lateral pectoral n.

O: medial half of clavicle, sternum, costal cartilage

I: lateral lip of intertubercular groove

pectoralis minor

In - medial pectoral n.

O - Ribs 3-5

I - coracoid process of scapula

subclavius

In - nerve to subclavius

O - 1st rib

I - inferior surface of clavicle

serratus anterior

In - long thoracic n.

O - 1st-9th ribs

I - medial border of scapula

rectus abdominis

In: thoracoabdominal n.

• six pack, linea alba

external obliques

In: thoracoabdominal n.

• superior lateral to inferior medial

internal obliques

In: thoracoabdominal n.

• inferior lateral to superior medial

transversus abdominis

In: thoracoabdominal n.

• horizontal

lateral cord

O: C5-C6 (upper trunk), C7 (middle trunk)

T: lateral pectoral, musculocutaneous, later root of median nerves

medial cord

• O: C8 & T1

• T: ulnar n. (main)

posterior cord

O: C5-T1 (posterior divisions)

T: axillary and radial nerves

musculocutaneous nerve

O: lateral cord

T: lateral antebrachial cutaneous n.

median nerve

O: lateral + medial cord

T: divides to recurrent branch and palmer digital n.

ulnar nerve

O: medial cord

T: divides to superficial and deep branch

radial nerve

O: posterior cord (largest terminal branch)

T: branches to superficial and deep radial n.

lateral pectoral n.

O: lateral cord

T: deep surface of pectoralis major

medial pectoral n.

O: medial cord

T: pectoralis minor/major

phrenic

O: C3-5 (anterior rami)

T: diaphragm

axillary artery

O: subclavian artery

T: continues as brahcial artery

axillary vein

O: basilic + brachial veins

T: continues as subclavian vein

brachial artery

O: axillary artery

T: divides into radial and ulnar artery

cephalic vein

O: anatomical snuffbox

T: first part of axillary vein

basilic vein

O: ulnar side of dorsal venous network (hand)

T: this + brachial veins = axillary vein