anatomy lab 2

Epicranius (frontalis)

Epicranius(occipital belly)

Frontalis contraction

Eye raise

Occipital belly contraction

Wiggle ears and move scalp posteriorly

Orbicularis oculi

Orbicularis oculi Contraction

Close skin around the eye

Orbicularis oris

Orbicularis oris Contraction

Close skin around mouth

Zygomaticus major

Zygomaticus minor

Depressor Anguli Oris

levator anguli oris

Anguli oris’ function

Move corner of mouth up and down

Nasalis

Nasalis function

Flare the nostril

Platysma

Platysma contraction

Tightens skin on neck

Temporalis

Masseter

Temporalis and Masseter are

Chewing muscles

Buccinator

Sternocleidomastoid

Sternocleidomastoid bi lateral Contraction

Hyperextension of the head

Sternocleidomastoid Uni lateral contraction

Same side Lateral flexion and opposite side lateral rotation

Hyoid bone

Thyroid cartilage

Laryngeal prominence

Adam’s apple

Cricoid cartilage

Trachea

Omohyoid muscle

Sternohyoid muscle

Sternothyroid muscle

Thyrohyoid muscle

Thyroid gland

Cricothyroid muscle

Digastric muscle anterior portion

Digastric muscle posterior portion

Black

Mylohyoid

Stylohyoid

Blue

Submandibular gland

Parotid gland

Parotid duct

Submandibular duct

Ac joint

Carpals

eight small, irregularly shaped bones that form the wrist in human anatomy

Metacarpals

five long bones in the palm of the human hand that connect the wrist bones (carpals) to the finger bones (phalanges).

cubital fossa

a triangular-shaped depression located on the anterior (front) surface of the elbow joint. Close to the wrist

Axilla

Armpit

thenar eminence

rounded muscular bulge on the palm of the hand at the base of the thumb.

Hypothenar eminence

fleshy muscular bulge on the medial (ulnar) side of the palm of the hand, located at the base of the little finger (the fifth digit).

Anatomical snuff box

a small, triangular depression on the lateral (thumb) side of the back of the hand and wrist.

Abdominal head function

Downward flexion of the arm from a hyper extended position

Clavicular head function

Vertical flexion of the arm

Subscapularis

Infraspinotous

Top

Supraspinotous

Supraspinotous Function

Abduction of the arm at the shoulder

Teres minor

Bottom

Teres minor and Infraspinotous contraction

External of the arm at the shoulder

Latissimus Dorsi and teres major contraction

Internal rotation of the arm at the shoulder

Hyper extension of arm at the shoulder

Teres major

Anterior deltoid function

Flexion of the arm at the shoulder

Internal rotation of the shoulder

Middle deltoid function

Abduction of the arm

Posterior deltoid function

Hypertension of the arm at the shoulder

External rotation of the shoulder

Triceps long head function

Hyper Extension of the arm at the shoulder

Hypertension of the arm at the elbow

Triceps lateral and medial head function

Hyper extension of the arm at the elbow only

Subclavius

Coracobrachialis

Biceps brachii

Brachialis

Triceps long head

Blue

Triceps lateral head

Black

Brachioradialis

1

Brachioradialis Function

Only Forearm flexion

Pronator teres

2

Pronator teres function

Flexion of the forearm at the elbow and pronation of the forearm

Flexor Carpi radialis

3

Flexor Carpi radialis function

Flexion of the hand at the wrist

Radial deviation of the hand at the rest

Palmaris longus

4

Flexor carpi ulnaris

5

Flexor carpi ulnaris Function

Ulnar deviation

,flexion of forearm at elbow,

flexion of hand at wrist

Flexor digitorum Superficialis

Flexor digitorum Superficialis Function

Both flexions of forearm and hand

Flexion of of 2-5

Flexor digitorum Profundus

2

Flexor digitorum Profundus Function

Hand flexion , goes to the finger tips

flexor pollicis longus

1

flexor pollicis longus Function

Goes to the thumb

pronator quadratus

pronator quadratus Function

Pulls radius to ulna for pronation

extensor carpi radialis longus

Top

extensor carpi radialis Brevis

Bottom

extensor digitorum

extensor digitorum Function

Extension of forearm and hand

Hyperextension of fingers

extensor digiti minimi

extensor digiti minimi Function

Goes to little finger only

extensor carpi unarus

Anconeus

Extensor carpi unarus function

ulnar deviation of the hand at the wrist

abductor pollicis longus

abductor pollicis longus Function

Abduction of the thumb