Create
Learn
Share

Specific muscles and function

rename
rominamckenna's version from 2015-12-16 16:32

Section

Muscles of facial expression:
Question Answer
Frontaliswrinkle forehead and elevates the eyebrows
Occipitalismove scalp backwards
platysmadepresses the lower lip and tenses the skin of neck
Orbicularis Oculicloses eye as in blinking
Zygomaticuselevates the corner of the mouth as in smiling
Risoriusdraws corners of mouth laterally
levator labii superiorielevates the upper lip
buccinatorcompresses the check, as in sucking from a straw
Orbicularis Oriscloses and purses the lips as in kissing
Mentaliselevates and protudes lower lip as in pouting
memorize

Section

Muscles of mastication:
Question Answer
Masseterelevates the jaw
temporaliselevates jaw
medial pterygoiddepresses jaw, moves the jaw laterally
lateral pterygoidprotracts the jaw
Sternocleidomastoidflexes neck; turns head to side
memorize

 

Muscles of abdominal wall:
Question Answer
rectus abodominisflexes vertebral column
transversus abdominiscompresses the abdomen
external abdominal obliquecompresses the abdomen, lateral rotation
internal abdominal obliquecompresses the abdomen, lateral rotation
memorize

 

Muscles of vertebral column:
Question Answer
quadratus lumboromextend lumbar region, laterally flexes the vertebral column
illiocostalis lumborumextends lumbar region
illiocostalis thoracisextends thoraxic region
memorize
spinalis thoracis: extends vertebral column

Section

Muscles of respiration:
Question Answer
Internal Intercostalsacts in exhalation with diaphragm
External Intercostalsact in inhalation with diaphgram
Diaphragmprimer mover inspiration; flattens on contraction
memorize

 

Muscles that act on the pectoral girdle:
Question Answer
serratus anteriorpulls scapula forward and downward
pectoralis minorpulls scapula forward and downward
trapeziuselevates, depresses and adducts scapula
rhomboideus mayorelevates and adducts scapula
rhomboideus minorelevates and adducts scapula
memorize

Section

Muscles that act on the brachium:
Question Answer
latissimus dorsiextends, adducts and rotates humerus medially
teres majorextends, adducts and rotates humerus medially
deltoidabducts arm
supraspinatusabducts and rotates humerus laterally
teres minorrotates humerus laterally at shoulder joint
subscapularisrotates humerus medially at shoulder joint
infraspinatusrotates the arm laterally at shoulder joint
coracobrachialisflexes and adducts humerus at shoulder joint
memorize
pextoralis mayor: flexes and adducts humerus, rotates humerus medially

Section

Muscles that act on the antebrachium
Question Answer
anconeusextends elbow joint
Triceps Brachiiextends elbow joint
Biceps Brachiiflexes elbow joint and supinates forearm
Brachialisflexes elbow joint
Brachioradialisflexes elbow joint
Pronator Terespronates hand
supinatorsupinates hand
flexor carpi radialisflexes and abducts hand at wrist
Flexor Carpi Ulnarisflexes and adducts wrist
memorize

Section

Muscles that act on the antebrachium
Question Answer
palmaris longusflexes wrist
Flexor pollicis longusflexes joints of thumb
Extensor Carpi Ulnarisextends wrist; adducts wrist
Extensor carpi radialis longusextends and abducts wrist
extensor pollicis longusextends joints of thumb, abducts joint of hand
memorize

Section

Muscles that move thigh at hip joint anterior and posterior
Question Answer
iliacusflexes and rotates the thigh laterally at hip joint
Psoas mayorflexes and rotates the thigh laterally at hip joint
gluteus maximusextends and rotates thigh laterally at hip joint
gluteus mediusabducts and rotates thigh medially at hip joint
gluteus minimusabducts and rotates tighh medially at hip joint
tensor fasciae lataeabducts thigh at hip joint
memorize

Section

Muscles that move thigh at hip joint medially
Question Answer
gracilisadducts thigh at hip joint
adductor longusadducts, flexes and laterally rotates thigh at hip joint
adductor brevisadducts, flexes and laterally rotates thigh at hip joint
adductor magnusadducts, flexes and laterally rotates thigh at hip joint
Pectineusadducts and flexes thigh at hip joint
Sartoriusflexes leg and thigh
quadriceps femorisextends leg at knee joint
rectus femorisextend leg at knee joint
memorize

Section

Muscles of the thigh that act on the leg
Question Answer
vastus lateralisextends leg at knee joint
vastus medialisextends leg at knee joint
vastus intermidiusextends leg at knee joint
biceps femorisflexes leg at knee joint
semitendinosusflexes leg at knee joint
semimembranosusflexes leg at knee joint
peroneus Longusplantar flexes and everts foot
peroneus Brevisplantar flexes and everts foot
memorize

Section

Muscles of the leg that move the ankle, foot and toes
Question Answer
Gastrocnemiusplantar flexes foot
Soleusplantar flexes foot
tibialis anteriordorsiflexes ankle,inverts foot
tibialis posteriorplantar flexes and invert foot at ankle
Popliteusflexes and medially rotates leg at knee joint
memorize

Section 12