39 terms

lab 14 muscles

smiling muscle
zyygomaticus major
kissing muscle
orbicularis oris
closes eyelids
oricularis oculi
two muscles that close mouth
masseter and temporalis
paired muscle that flexes head and rotates to side
extends head
Adducts and flexes arm
pectoralis major
anterior protion flexes arm; lateral protion abducts arm
abducts scapula and rotates it upward (boxer's muscle)
serratus anterior
flexes vertebral column and compresses abdomen
rectus abdominus
two muscle pairs that flex vertebral column compress abdomen, and laterally flex vertebral column
external oblique and internal oblique
compresses abdomen ONLY
transverse abdominus
extends, adducts, and medially rotates arm
latissimus dorsi and ters major
posterior portion extends arm; lateral portion abducts arm
superior portion elevates scapula, middle portion adducts scapula, inferior portion depresses scapula
paired muscle that extends vertebral column, maintains errect posture, and laterally flexes vertebral column
erector spinae
extends forearm at elbow and extends arm
triceps brachii
flexes forearm at elbow and flexes arm
biceps brachii
flexes forearm
flexes forearma nd pronates and supinates forearm
flexes and abducts hand
flexor carpi radialis
flexes and adducts hand
flexor carpi ulnaris
weakly flexes hand
palmoris longus
extends hand and extends phalanges
extensor digitorum
extends and adducts hand
extensor carpi ulnaris
extends and abducts hand
extensor carpi radialis
extends leg at knee and flexes thigh at hip
rectus femoris
three muscles that extend leg only
vastus intermedius, vastus lateralis, vastus medialis
flexes leg and flexes abduct and laterally rotates thigh ( allows us to flex and cross our legs)
adducts thigh and flexes leg
abduct thigh
gluteus medius, tensor fascia latae
extend thigh
gluteus maximus
three muscles that flex leg
biceps femoris, semitendinosus, semimembranous
Plantar flexes and everts foot
fibularis longus
plantar flexes and flexes toes
flexor digitorum longus
plantar flexes foot ONLY
platar flexes foot and flexes leg
dosiflexes foot and extends toes
extensor digitorum longus
dorsiflexes and inverts foot
tibialis anterior