Main muscles of the body- function, innervation.

pecteneus

ADDUCT and flex hip

femoral nerve

pec minor

downward rotate scapula

abduct

median pectoral nerve

serrates anterior

upward rotate scapula

abduct

long thoracic nerve

levator scapulae

elevate + downward rotate scapula

dorsal scapular nerve

Rhomboid major and minor

adduct

downward rotation of the scapula

dorsal scapular nerve

pectoralis major

adduct arm

medial rotation

medial and lateral pectoral nerve

latissimus dorsi

adduct arm

medial rotation

extends arm

thoracodorsal

teres major

adduct

medial rotation

extend arm

lower sub scapular nerve

coracobrachialis

flex

adduct

musculocutaneous nerve

suprasniatus

abduct arm

supra scapular nerve

teres minor

extend arm

lateral rotate

axillary nerve

sub scapular

medially rotate arm

upper and lower sub scapular nerve

biceps braciii

flex arm

flex forearm

supinates

musculocutaneous nerve

brachialis

flex forearm

musculocutaneous and radial nerve

pronator teres

pronates forearm

medial nerve

flexor carpi radialis

flexes wrist and abducts hand

medial nerve

palmaris longus

weakly flexes wrist

medial nerve

flexor digitorum profundus

flexes digits till distal phalanx

medial and ulnar nerve

flexor pollicis longus

flexes thumb

medial nerve

pronator quadratus

pronates forearm

medial nerve

extensor carpi radialis longus and brevis

extends wrist and abducts

radial nerve

extensor carpi ulnaris

extends wrist and adducts hand

deep radial nerve

extensor digitorum

extends digits upto distal phalanx

radial nerve

abductor pollicis longus

abducts thumb

extends

deep radial nerve

supinator

supinates

deep radial nerve

extensor pollicis longus

extends thumb upto proximal

deep radial nerve

extensor indices

extends index finger

deep radial nerve

abductor pollicis brevis

thenar

abducts thumb

medial nerve

flexor pollicis brevis

flexes thumb

medial and ulnar nerve

adductor pollicis

adducts thumb

ulnar nerve

abductor digiti minimi

abducts little finger

ulnar nerve

flexor digiti minimi brevis

flexes little finger

ulnar nerve

opponens digiti minimi

opposition of little finger

ulnar nerve

frontalis

surprise, raises eyebrow wrinkles forehead

facial nerve

levator palpabrea superioris

opens eye

oculomotor nerve

orbicularis oculi

closes eye

facial nerve

levator labii superioris

raises upper lip

facial nerve

masseter

primary mover of jaw

close mouth

elevates mandible

trigeminal nerve

popliteal

flex knee

medial rotate/ unlock knee

tibial nerve

flexor digiti minimi

flexes little toe

lateral plantar nerve

trapezius

upward rotate

depress scapula

adduct

accessory nerve

subclavian

stabilize

deltoid

abduct arm

axillary nerve

infraspinatus

lateral rotation

supra scapular nerve

brachioradialis

flex formarm

supinates and pronates

radial nerve

triceps brachii

extends forearm

extends arm

radial nerve

flexor carpi ulnaris

flexes wrist and adducts hand

ulnar nerve

flexor digitorum superficialis

flexes digits till middle phalanx

medial nerve

extensor digiti minimi

extends little finger

deep radial nerve

extensor pollicis brevis

extends thumb upto distal

deep radial nerve

opponens pollici

opposition of thumb

medial nerve

corrugated supercilli

frowning

eyebrow medially and inferiorly

facial nerve

longissimus group

extends neck together

rotate head to side to side singly

posterior rami of spinal nerves

Diaphragm

contraction: inhalation- increase in vertical dimension of thoracic cavity.

relaxation: decrease in the vertical dimension of thoracic cavity, exhalation.

Phrenic nerve

internal intercostals

contraction: draws adjacent ribs together and decreases the anteroposterior dimension and lat dimension. FORCED EXHALATION.

anterior rami of thoracic spinal nerves

rectus abdominis

flex vertebral column

ant rami of thoracic nerves

gluteus maximus

lateral rotation, extend hip

inferior gluteal nerve

extensor hallucis brevis

extends big toe

deep fibular nerve

depressor labii superioris

lowers lower lip

facial nerve

levator anguli oris

smile

angle of mouth superiolaterally

facial nerve

depressor anguli iris

sad

angle of mouth inferior laterally

facial nerve

zygomatticus major and minor

elevates upper lip

smile

facial nerve

orbicularis oris

puckers lips, kissing, whistling

facial nerve

buccinator

blow, suck, puff cheeks, whistle

facial nerve

risorus

flat smile

angle of mouth laterally

facial nerve

mentalis

pout

protrudes lower lip

facial nerve

platysma

depresses mandible, lower lip back and down

facial nerve

temporalis

elevates and reacts mandible

close mouth

trigeminal nerve

medial pterygoid

close mouth

moves jaw side to side

protracts mandible

trigeminal nerve

lateral pterygoid

opens mouth

moves jaw side to side

protract+ depress mandible

trigeminal nerve

Sternocleidomastoid

extends head, flex neck--> bilat

lat flex neck, rotate head--> unilat

accessory nerve

semispinalis capris

extends and rotates

cervical spinal nerves

splenius captis

extends head

cervical spinal nerves

splenius cervicis

extends head

cervical spinal nerves

illiocostalis group

maintains posture together

lat flex vertebrae singly

posterior rami of spinal nerves

spinalis group

extends vertebral column

posterior rami of spinal nerves

external intercostals

contraction: elevates ribs increases anteroposterior and lat dimension. inhalation

relaxation: depresses ribs, decreases anteroposterior and lat dimension. exhalation

anterior rami of thoracic spinal nerves

innermost intercostals

same as internal intercostals

contraction: draws adjacent ribs together and decreases the anteroposterior dimension and lat dimension. FORCED EXHALATION.

anterior rami of thoracic spinal nerves

external oblique and internal oblique

both flex vertebral column and rotate vertebral column + laterally flex

ext- anti rami and iliohypogastric nerves

int- anti rami, iliohypogastric and lingual nerves

transversus abdominis

compress abdomen

ant rami, iliohypogastric, and ilioinguinal nerves

quadrates lumbordum

pull rib 12 inferior , extends vertebral column and lat flex

ant rami of thoracic nerves

psoas major and iliacus

flex+ lat rotation of hip

flex trunk- sit up

lumbar nerve

gluteus medius

medial rotation and ABDUCT hip

superior gluteal nerve

gluteus minimus

ABDUCT and medial rotation hip

superior gluteal nerve

tensor fascia lata

flex and ABDUCT hip

superior gluteal nerve

piriformis, superior gemellus, obturator internus, inferior gemellus, obturator externus, quadratus femoris- PGOGOQ

lateral rotation

ABDUCT

piriformis- sacral spinal nerve

superior gemellus- nerve to obturator internus

obturator interns- nerve to obturator internus

inferior gemellus- nerve to quadrates femoris

obturator exterus- obturator nerve

quadrates femoris- nerve to quadratus femoris

biceps femoris

flex knee, extend hip

tibial and common fibular nerve

Semitendinosus

flex knee, extend hip

tibial nerve

semimembrenosus

flex knee, extend hip

tibial nerve

hamstrings

posterior compartment of thigh

biceps femoris

semitendenosus

semimembrenosus

rectus femoris

extend knee, flex hip

femoral nerve

vasatus laterals, intermedius, medius

extend knee

femoral nerve

quadratus femoris

anterior compartment of thigh

rectus femoris

vasatus lateralis

vasatus medialis

vasatus intermedius

sartorius

weakly flex knee

weakly ABDUCT

lat rotation of hip

femoral nerve

adductor longs and brevis

ADDUCT and flex hip

obturator nerve

adductor Magnus

ADDUCT+ flex- anterior part and extend- posterior part

obturator nerve and sciatic nerve

gracilis

ADDUCT, flex hip, medial rotation hip and flex knee

obturator nerve

plantaris, gastrocnemius

plantar flexion of the ankle and flex knee

tibial nerve

Soleus

plantar flexion of ankle

tibial nerve

tibialis posterior

plantar flex

inversion

tibial nerve