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the muscular skeletal system

sartorius

a muscle in the thigh that helps to rotate the leg into the sitting position assumed by a tailor

tibialis anterior

a muscle running from the tibia to the first metatarsal and cuneiform bones

soleus

a broad flat muscle in the calf of the leg under the gastrocnemius muscle

fibularis longus

Fibula, first metatarsal, plantar flexion

iliopsoas

Flexion & Internal Hip Rotation, o: illium and lumbar vertebrae; i: femur; flexes hip

rectus femoris

part of quadriceps group, extends leg at knee

adductor longus

Adducts and flexes thigh at the hip; assists in medial rotation

tensor fasciae latae

Abducts, medially rotates, and flexes thigh; stabilizes the hips

extensor digitorum longus

Extends the lateral four toes; dorsiflexion of ankle and eversion of foot

vastus medialis

Extends leg at the knee; part of the quadriceps group

vastus lateralis

part of quadriceps group, extends leg at knee

gastrocnemius

the muscle in the back part of the leg that forms the greater part of the calf

pectineus

O: superior ramus of pubis; I: tibial tuberosity, medial side

gracilis

adducts femur/thigh

orbicularis oculi

Closes eye

orbicularis oris

spincter muscle used for "puckering up" and whistling

zygomaticus

smiling muscle

masseter

a large muscle that raises the lower jaw and is used in chewing

internal oblique

compresses abdomen, middle layer; fibers point up to the head

sternoclediomastoid

O: Sternal clavicle or manubrium. I: Mastoid region and lateral nuchal line. A: Flex neck or bend head toward shoulder while turning face to opposite side.

pectoralis minor

a skeletal muscle that draws down the scapula or raises the ribs

pectoralis major

a skeletal muscle that adducts and rotates the arm

sarratus anterior

Origin: ribs 1-8 / Insertion: Medial border of scapula / Action: prime mover: protracts scapula

internal intercostals

Muscles between ribs used for breathing, Depresses ribs for Expiration

rectus abdominus

major spine flexor, forms 6 pack and translates to "straight muscle of abdomen"

external oblique

origin is lower 8 ribs, compresses abdomen; most external of abdominal muscles

brachialis

..., flexes forearm at elbow

trapezius

either of two flat triangular muscles of the shoulder and upper back that are involved in moving the shoulders and arms

transversus abdominus

compresses abdomen

frontalis

the face or front of a building, forehead muscle (Raises eyebrow andfacial expressions)

brachioradialis

Flexes Elbow

flexor carpi radialis

flexes wrist and abducts hand

brachialis

flexes elbow

triceps brachii

the skeletal muscle having three origins that extends the forearm when it contracts

biceps brachii

a muscle that flexes and supinates the forearm

pronator teres

Pronates forearm and assists in flexing the elbow

deltoid

a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm

palmaris longus

flexes wrist

sternohyoid

depresses hyoid

temporalis

muscle extending from the temporal fossa to the coronoid process of the mandible

risorius

Draws angles of the mouth laterally; draws lips into the grinning expression

buccinator

compresses cheek, allowing for rapid changes in volume of mouth cavity

flexor carpi ulnaris

flexes and adducts wrist

flexor digitorum superficialis

Flexes Proximal Interphalangeal Joints and Secondarily Metacarpophalangeal joints and Wrists

interosseous

a structure between bones, such as the muscles between the metacarpals

lumbricals

In: median nerve

A: flex digits at MCPs and extends at interphalangeal joints

gluteus maximus

butt

gluteus medius

the middle of the three gluteal muscles

linea alba

midline of chest where abdominal aponeuroses meet

diaphragm

(anatomy) a muscular partition separating the abdominal and thoracic cavities

external intercostals

Elevates ribs during inspiration

coccygeus

pelvic floor

levator ani

Forms the floor of pelvic cavity; assists in defecation

levator scapulae

Elevates scapula

rhomboideus major

can raise and adduct the scapula

lattisimus dorsi

adducts and extends upper arm/shoulder

subscapularis

Rotates arm medially

infraspinatus

Rotates arm laterally

supraspinatus

abducts arm

teres major

Medially rotates and adducts the arm

coracobrachialis

Flexes and adducts the humerus

supinator

Supinates forearm

levator palpabrae

Closes the eye

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