the reason im going to KMS

What is the origin of the trapezius

External occipital protuberance

What is the action of the upper fiber of the trapezius

Elevation of scapula
- Upward Rotation of scapula

What is the action of the middle fiber of the trapezius

Retraction of scapula

What is the action of the lower fiber of the trapezius

Depression of scapula
- Upward rotation of scapula

What is the nerve supply of the trapezius

Spinal accessory nerve (Cranial nerve XI)

What is the insertion of the rhomboid minor

- Root of spine of scapula

What is the action of the rhomboid minor

- Retraction of scapula
- Downward rotation of scapula

What is the nerve supply of the rhomboid minor

- Dorsal scapular nerve

What is the insertion of the rhomboid major

- Vertebral border of scapula inferior to root of spine

What is the action of the rhomboid major

- Retraction of scapula
- Downward rotation of scapula

What is the nerve supply of the rhomboid major

- Dorsal scapular nerve

What is the insertion of the levator scapuale

- Superior Angle of Scapula

What is the action of the levator scapuale

Elevation of scapula
- Downward rotation of scapula

What is the nerve supply of the levator scapuale

- Dorsal scapular nerve

What is the insertion of the latissimus dorsi

- Bicipital groove of humerus

What is the action of the latissimus dorsi

Extension of shoulder
- Internal rotation of shoulder
- Adduction of shoulder

What is the nerve supply of the latissimus dorsi

- Thoracodorsal nerve

What is the insertion of the serrates posterior superior

Superior border of ribs

What is the action of the serrates posterior superior

Elevates ribs

What is the nerve supply of the serrates posterior superior

Intercostal nerves T1-T4

What is the insertion of the serrates posterior inferior

Inferior border of ribs

What is the action of the serrates posterior inferior

Depresses ribs

What is the nerve supply of the serrates posterior inferior

Intercostal nerves T9-T12

liocostalis

(The most lateral of the Erector Spinae muscle group)

Longissimus

(Middle muscle of Erector Spinae muscle group)

Spinalis

(Most medial of Erector Spinae muscle group)

What is the action of the Rectus Capitus Posterior Major

Extension of atlanto-occipital joint
- Ispilateral rotation at the atlanto-axial joint

What is the nerve supply of the Rectus Capitus Posterior Major

Posterior ramus of spinal nerve C1

What is the action of the Rectus Capitus Posterior minor

- Extension of atlanto-occipital joint

What is the nerve supply of the Rectus Capitus Posterior minor

- Posterior ramus of spinal nerve C1

What is the action of the obliquus Capitus superior

- Extension of atlanto-occipital joint
- Lateral flexion of atlanto-occipital joint

What is the nerve supply of the obliquus Capitus superior

- Posterior ramus of spinal nerve C1

What is the action of the obliquus Capitus inferior

- Ipsilateral rotation of the atlanto-axial joint

What is the nerve supply of the obliquus Capitus inferior

- Posterior ramus of spinal nerve C1

What is the action of the splenius capitus

Extension of head and neck
- Lateral flexion and rotation of head

What is the nerve supply of the splenius capitus

- Posterior ramus of spinal nerve C2-3

What is the insertion of the Biceps Barchii

tendon – Radial tuberosity

What is the action of the Biceps Barchii

Both heads:
- Supination of forearm
- Flexion of elbow
Short head:
- Also: Flexion of shoulder

What is the nerve supply of the Biceps Barchii

- Musculocutaneous nerve

What is the origin of the coracobrachialis

- Coracoid Process

What is the action of the coracobrachialis

- Flexion of shoulder
- Adduction of shoulder

What is the nerve supply of the coracobrachialis

- Musculocutaneous nerve

What is the action of the brachiallis

flexion of elbow

What is the nerve supply of the brachiallis

- Musculocutaneous nerve

What is the insertion of the triceps brachii

- Olecranon process

What is the action of the triceps brachii

All heads:
- Extension of elbow
Long head
- Extension of shoulder

What is the nerve supply of the triceps brachii

- Radial nerve

What is the origin of the supraspinatus

- Supraspinous fossa

What is the action of the supraspinatus

Abduction of shoulder
- Stabilizes glenohumeral joint

What is the nerve supply of the supraspinatus

- Suprascapular nerve

What is the origin of the infraspinatus

- Infraspinous fossa

What is the action of the infraspinatus

External rotation of shoulder
- Stabilizes glenohumeral joint

What is the nerve supply of the infraspinatus

- Suprascapular nerve

What is the insertion of the teres minor

- Greater tubercle

What is the action of the teres minor

- External rotation of shoulder
- Stabilizes glenohumeral joint

What is the nerve supply of the teres minor

- Axillary nerve

What is the origin of the subscapularis

- Subscapular fossa

What is the action of the subscapularis

- Internal rotation of shoulder
- Stabilizes glenohumeral joint

What is the nerve supply of the subscapularis

Upper subscapular nerve
- Lower subscapular nerve

What is the insertion of the deltoid

- Deltoid tuberosity

What is the action of the Anterior deltoid

- Flexion of shoulder
- Horizontal adduction of shoulder
- Internal rotation of shoulder

What is the action of the middle deltoid

Abduction of shoulder

What is the action of the posterior deltoid

Extension of shoulder
- Horizontal abduction of shoulder
- External rotation of shoulder

What is the nerve supply of the deltoid

- Axillary nerve

What is the insertion of the teres major

- Bicipital groove

What is the action of the teres major

- Extension of shoulder
- Internal rotation of shoulder
- Adduction of shoulder

What is the nerve supply of the teres major

- Lower subscapular nerve

What is the action of the brachioradiallis

- Flexion of elbow with forearm in neutral position

What is the nerve supply of the brachioradiallis

- Radial nerve

What is the insertion of the pronator teres

- Middle of lateral radius

What is the action of the pronator teres

- Pronation of forearm
- Flexion of elbow

What is the nerve supply of the pronator teres

Median nerve

What is the insertion of the flexor carpi ulnaris

- Hook of hamate

What is the action of the flexor carpi ulnaris

Flexion of wrist

Ulnar deviation of wrist

What is the nerve supply of the flexor carpi ulnaris

Ulnar nerve

What is the origin of the palmaris longus

Medial epicondyle of humerus

What is the action of the palmaris longus

Flexion of wrist

What is the nerve supply of the palmaris longus

Median nerve

What is the origin of the flexor carpi radialls

Medial epicondyle of humerus

What is the action of the flexor carpi radialls

- Flexion of wrist
- Radial deviation of wrist

What is the nerve supply of the flexor carpi radialls

Median nerve

What is the origin of the flexor digitorum superficialls

Medial epicondyle of humerus

What is the insertion of the flexor digitorum superficialls

Middle phalanges of digits 2-5

What is the action of the flexor digitorum superficialls

- Flexion of wrist
- Flexion of digits 2-5 at MCP and PIP joints

What is the nerve supply of the flexor digitorum superficialls

Median Nerve

What is the action of the pronator quadratus

- Pronation of forearm

What is the nerve supply of the pronator quadratus

Median Nerve

What is the action of the flexor pollicis longus

- Flexion of thumb at IP joint

What is the nerve supply of the flexor pollicis longus

Median Nerve

What is the insertion of the flexor digitorum profundus

- Distal phalanges of digits 2-5

What is the action of the flexor digitorum profundus

Flexion of wrist
- Flexion of digits 2-5 at MCP, PIP and DIP joints

What is the nerve supply of the flexor digitorum profundus

Digits 2-3: median nerve
- Digits 4-5: ulnar nerve

What is the origin of the extensor carpi radials longus

- Lateral epicondyle of humerus

What is the action of the extensor carpi radials longus

Extension of wrist
- Radial deviation of wrist

What is the nerve supply of the extensor carpi radials longus

Radial Nerve

What is the origin of the extensor carpi radials brevis

- Lateral epicondyle of humerus

What is the action of the extensor carpi radials brevis

- Extension of wrist

What is the nerve supply of the extensor carpi radials brevis

- Deep branch of radial nerve

What is the origin of the extensor digitorum

- Lateral epicondyle of humerus

What is the insertion of the extensor digitorum

- Digits 2-5