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Anatomy & Physiology I
Muscles-Origins Insertions Actions
55
Anatomy
Undergraduate 2
03/17/2009

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Cards

Term
Orbicularis oculi
Definition

Origin Orbit

Insertion Orbit

      Action close e-ye

Term
Orbicularis oris
Definition

Origin Muscles around mouth

   Insertion skin at corners of mouth

Action purse lips

Term
Zygomatic Major
Definition

Origin zygomatic

Insertion skin at corners of mouth

Action smile

Term
Frontalis
Definition

Origin frontal

Insertion eyebrows

Action raise eyebrows

Term
Temporalis
Definition

Origin temporal

Insertion mandible

Action closes jaw

Term
Masseter
Definition

Origin zygomatic arch

Insertion mandible

Action closes jaw

Term
Buccinator
Definition

Origin maxilla, mandible

Insertion mouth

Action compress cheek

Term
Platysma
Definition

Origin chest fasia

Insertion mandible

Action depress mandible

Term
Sternohyoid
Definition

Origin sternum

Insertion hyoid

Action swallow

Term
Sternocleidomastoid
Definition

Origin sternum, clavicle

Insertion mastoid process

Action flex and rotate head

Term
Pectoralis Major
Definition

Origin sternum, ribs

Insertion humerus

Action adduct arm, flex arm

Term
Deltoid
Definition

Origin clavicle, scapulae

Insertion humerus (deltoid tuberosity)

Action abduct arm

Term
Latissimus dorsi
Definition

Origin vertebrae

Insertion humerus

Action extend, adduct arm

Term
Serratus anterior
Definition

Origin ribs

Insertion scapulae

Action scapulae forward

Term
Trapezius
Definition

Origin occipital bone, vertebrae

Insertion scapulae

Action extend head, adduct scapulae

Term
Levator scapulae
Definition

Origin cervical vertebrae

Insertion scapulae

Action elevates scapulae

Term
Rhomboid major
Definition

Origin vertebrae

Insertion scapulae

Action adduct scapulae

Term
Supraspinatus
Definition

Origin above spine of scapulae

Insertion humerus

Action stabilize shoulder joint

Term
Infraspinatus
Definition

Origin below spine of scapulae

Insertion humerus

Action stabilize shoulder joint

Term
Teres minor
Definition

Origin scapulae

Insertion humerus

Action stabilize shoulder joint

Term
Teres major
Definition

Origin scapulae

Insertion humerus

Action extend, adduct arm

Term
Subscapularis
Definition

Origin scapulae

Insertion humerus

Action stabilize shoulder joint

Term
Rectus abdominis
Definition

Origin pubis

Insertion xiphoid, ribs

Action compress abdomin

Term
External oblique
Definition

Origin ribs

Insertion linea alba, ilium

Action compress abdomin

Term
Internal oblique
Definition

Origin iliac crest

Insertion linea alba

Action compress abdomen

Term
Transverse abdominis
Definition

Origin ribs

Insertion linea alba

Action compress abdomen

Term
Brachialis
Definition

Origin humerus

Insertion ulna

Action flex elbow

Term
Brachioradialis
Definition

Origin humerus

Insertion radius

Action flex elbow

Term
Biceps brachii
Definition

Origin scapulae

Insertion radius

Action flex elbow

Term
Triceps Brachii
Definition

Origin scapulae

Insertion ulna (olecranon process)

Action extend elbow

Term
Pronator teres
Definition

Origin humerus

Insertion radius

Action pronate forearm

Term
Flexor carpi radialis
Definition

Origin humerus

Insertion metacarpals

Action flex wrist

Term
Palmaris longus
Definition

Origin humerus

Insertion palm

Action flex wrist

Term
Flexor carpi ulnaris
Definition

Origin humerus

Insertion metacarpals

Action flex wrist

Term
Extensor carpi radialis
Definition

Origin humerus

Insertion metacarpals

Action extend wrist

Term
Extensor digitorum
Definition

Origin humerus

Insertion phlanges

Action extend fingers and wrist

Term
Extensor carpi ulnaris
Definition

Origin humerus

Insertion metacarpals

Action extend wrist

Term
Gluteus maximus
Definition

Origin sacrum

Insertion femur

Action extend thigh

Term
Sartorius
Definition

Origin ilium

Insertion tibia

Action flex thigh, flex knee

Term
Adductor longus
Definition

Origin pubis

Insertion femur

Action adduct thigh

Term
Gracilus
Definition

Origin pubis

Insertion tibia

Action adduct thigh

Term
Adductor magnus
Definition

Origin ischium

Insertion femur

Action adduct thigh

Term
Tensor fasia latae
Definition

Origin ilium

Insertion iliotibial tract

Action abduct thigh

Term
Rectus femoris (Quadraceps femoris)
Definition

Origin ilium

Insertion patella ligament

Action extend knee, flex thigh

Term
Vastus lateralis (Quadraceps femoris)
Definition

Origin femur

Insertion patella ligament

Action extend knee

Term
Vastus medialis (Quadraceps femoris)
Definition

Origin femur

Insertion patella ligament

Action extend knee

Term
Biceps femoris (Hamstrings)
Definition

Origin ischium

Insertion tibia

Action extend thigh, flex knee

Term
Semitendinosis (Hamstrings)
Definition

Origin ischium

Insertion tibia

Action extend thigh, flex knee

Term
Semimembranosus (Hamstrings)
Definition

Origin ischium

Insertion tibia

Action extend thigh, flex knee

Term
Tibialis anterior
Definition

Origin tibia

Insertion metatarsals

Action dorsiflex

Term
Tibialis anterior
Definition

Origin tibia,

Insertion metatarsals,

Action dorsiflex

Term
Extensor digitorum longus
Definition

Origin tibia,

Insertion phlanges,

Action extend toes, dorsiflex

Term
Peroneus (fibularis) longus
Definition

Origin fibula,

Insertion matatarsals,

Action plantar flex

Term
Soleus
Definition

Origin tibia,

Insertion calcaneus via calcaneal tendon,

Action plantar flex

Term
Gastrocnemius
Definition

Origin femur,

Insertion calcaneus via calcaneal tendon,

Action plantar flex, flex knee

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