muscles

masseter: action

elevates mandible

masseter: nerve supply

CN V trigeminal

temporalis: action

elevates mandible

temporalis: nerve supply

CN V trigeminal

sternocleidomastoid: action

flexes, rotates, and laterally flexes neck

sternocleidomastoid: nerve supply

CN XI accessory

trapezius: action

elevates and retracts scapula

trapezius: nerve supply

CN XI accessory

occipitofrontalis: action

moves scalp, elevates eyebrows, wrinkles forehead

occipitofrontalis: nerve supply

CN VII facial

zygomaticus: action

smiling

zygomaticus: nerve supply

CN V facial

depressor anguli oris: action

frowning

depressor anguli oris: nerve supply

CN V facial

orbicularis oris: action

puckers lips

orbicularis oris: nerve supply

CN V facial

orbicularis oculi: action

winking (closes eye)

orbicularis oculi: nerve supply

CN V facial

mentalis: action

pouting

mentalis: nerve supply

CN V facial

buccinator: action

compresses cheek (whistling)

buccinator: nerve supply

CN V facial

external intercostals: action

elevates ribs

external intercostals: nerve supply

intercostal nerves

internal intercostals: action

depresses ribs

internal intercostals: nerve supply

intercostal nerves

rectus abdominis: action

flexes and rotates lumbar region

rectus abdominis: nerve supply

intercostal nerves

external oblique: action

flexes, rotates, laterally flexes lumbar region, and compresses abdominal contents

external oblique: nerve supply

intercostal nerves

internal oblique: action

flexes, rotates, laterally flexes lumbar region, and compresses abdominal contents

internal oblique: nerve supply

intercostal nerves

transversus abdominis: action

compresses abdominal contents

transversus abdominis: nerve supply

intercostal nerves

iliocostalis: action

extends vertebral column

iliocostalis: nerve supply

dorsal rami

longissimus: action

extends vertebral column

longissimus: nerve supply

dorsal rami

spinalis: action

extends vertebral column

spinalis: nerve supply

dorsal rami

deltoid: action

abducts, flexes, and extends shoulder

deltoid: nerve supply

axillary

levator scapulae: action

elevates and retracts scapula

rhomboids (major & minor): action

elevates and retracts scapula

supraspinatus: action

abducts shoulder

infraspinatus: action

laterally rotates shoulder

teres minor: action

laterally rotates shoulder

teres minor: nerve supply

axillary

subscapularis: action

medially rotates shoulder

teres major: action

medially rotates shoulder

latissimus dorsi: action

extends, adducts, and medially rotates shoulder

serratus anterior: action

stabilizes scapula

pectoralis major: action

flexes, medially rotates, and adducts shoulder

pectoralis minor: action

stabilizes scapula

biceps brachii: action

flexes shoulder and elbow, supinates forearm

biceps brachii: nerve supply

musculocutaneous

brachialis: action

flexes elbow

brachialis: nerve supply

musculocutaneous

coracobrachialis: action

flexes and adducts shoulder

coracobrachialis: nerve supply

musculocutaneous

triceps brachii: action

extends shoulder and elbow

triceps brachii: nerve supply

radial

brachioradialis: action

flexes elbow

brachioradialis: nerve supply

radial

anterior compartment: action

pronates forearm, flexes wrist and fingers

anterior compartment: nerve supply

median and ulnar

posterior compartment: action

supinates forearm, extends wrist and fingers

posterior compartment: nerve supply

radial

thenar muscles: action

abducts, flexes, adducts, and opposes thumb

thenar muscles: nerve supply

median

hypothenar muscles: action

abducts, flexes, and opposes little finger

hypothenar muscles: nerve supply

ulnar

palmar interossei: action

adducts fingers (PAD)

palmar interossei: nerve supply

ulnar

dorsal interossei: action

abducts fingers (DAB)

dorsal interossei: nerve supply

ulnar

iliacus: action

flexes hip

iliacus: nerve supply

femoral

psoas major: action

flexes hip

gluteus maximus: action

extends, laterally rotates, and abducts hip

gluteus medius: action

abducts and medially rotates hip

gluteus minimus: action

abducts and medially rotates hip

piriformis: action

extends, laterally rotates, and abducts hip

rectus femoris: action

flexes hip and extends knee

rectus femoris: nerve supply

femoral

vastus lateralis: action

extends knee

vastus lateralis: nerve supply

femoral

vastus medialis: action

extends knee

vastus medialis: nerve supply

femoral

vastus intermedius: action

extends knee

vastus intermedius: nerve supply

femoral

sartorius: action

flexes and laterally rotates hip and flexes knee

sartorius: nerve supply

femoral

biceps femoris: action

flexes knee and extends hip

biceps femoris: nerve supply

tibial

semitendinosus: action

flexes knee and extends hip

semitendinosus: nerve supply

tibial

semimembranosus: action

flexes knee and extends hip

semimembranosus: nerve supply

tibial

adductor magnus: action

adducts hip