Muscles (A, O, I) Flashcards
frontalis
▫raises eyebrows
▫o- epicranial aponeurosis
▫i- eyebrow skin
orbicularis oculi
▫closes eye
▫o- eye orbit
▫i- eye lid
nasalis
▫moves nose
▫o- maxilla
▫i- bridge of nose
levator palpbrae superioris
▫opens eyes
▫sphenoid
▫eyelid
quadratus labii superioris
▫elevates upper lip
▫o- maxilla
▫i- corners of mouth
zygomaticus
▫raises mouth corners
▫o- zygomatic bone
▫i- lip corners
orbicularis oris
▫purses lips
▫o- mandible and maxilla
▫i- mouth
mentalis
▫elevates lower lip
▫o- mandible
▫i- chin
triangularis (depressor anguli oris)
▫opens mouth
▫o- mandible
▫i- mouth
buccinator
▫flattens cheek
▫o- mandible
▫i- orbicularis oris
digastricus
▫lowers jaw
▫o- mandible
▫i- hyoid
masseter
▫closes jaw
▫o- zygomatic arch (tb)
▫i- mandible
sternicladomastoid
▫rotates head
▫o- sternum, clavicle
▫i- temporal bone
temporalis
▫closes jaw
▫o- temporal bone
▫i- mandible
trapezius
▫raises shoulders
▫o- occipital bone
▫i- clavicle, scapula
latissimus dorsi
▫extends arm behind back
▫o- vertebrae and sacrum
▫i- humerus
pectoralis major
▫flexes arm across chest
▫o- clavicle, sternum
▫i- humerus
serratus anterior
▫moves scapula forward
▫o- ribs
▫i- scapula
teres major
▫extends arm
▫o- scapula
▫i- humerus
teres minor
▫extends and adducts arm
▫o- scapula
▫i- humerus
deltoid
▫abducts arm
▫o- clavicle, scapula
▫i- humerus
biceps bracii
▫flexes forearm
▫o- scapula
▫i- radius
brachioradialis
▫flexes forearm
▫o- humerus
▫i- radius
brachialis
▫flexes forearm
▫o- humerus
▫i- ulna
triceps bracii
▫extends forearm
▫scapula, humerus
▫ulna
extensor carpi radialis longus
▫extends hand
▫o- humerus
▫i- metacarpals
flexor carpi radialis
▫flexes hand
▫o- humerus
▫i- metacarpals
flexor carpi ulnaris
▫flexes hand
▫o- humerus, ulna
▫i- metacarpals
extensor carpi ulnaris
▫extends hand
▫o- humerus, ulna
▫i- metacarpals
flexor digitorum superficialis
▫flexes fingers
▫o- humerus, ulna, radius
▫i- phalanges
extensor digitorum
▫extends fingers
▫o- humerus
▫i- phalanges
iliopsoas
▫flexes hip
▫o- ilium
▫i- femur
sartorius
▫flexes thigh
▫o- iliac spine
▫i- tibia
rectus femoris
▫extends leg
▫o- iliac spine
▫i- patella, tibia
vastus lateralis
▫extends leg
▫o- femur
▫i- patella, tibia
vastus medialis
▫extends leg
▫o- femur
▫i- patella, tibia
vastus intermedius
▫extends leg
▫o- femur
▫i- patella, tibia
adductor longus
▫adducts thigh
▫o- Pubis
▫i- femur
gracilis
▫adducts thigh
▫o- pubis
▫i- tibia
adductor mangus
▫adducts thigh
▫o- pubis, ischium
▫i- femur
gluteus medius (no action )
▫o- ilium
▫i- femur
gluteus maximus (no action)
▫o- illium, sacrum, coccyx
▫i- femur
biceps femoris
▫flexes leg
▫o- ischium
▫i- tibia and fibula
semitebdinosus
▫flexes leg
▫o- ischium
▫i- tibia
semimembranosus
▫flexes leg
▫o- ischium
▫i- tibia
peroneus longus
▫everts foot
▫o- tibia, fibula
▫i- tarsals, metatarsals
tibialis anterior
▫dorsiflexes foot
▫o- tibia
▫i- tarsals, metatarsals
gastrocnemius
▫plantar flexes foot
▫o- femur
▫i- calcaneus
soleus
▫plantar flexes foot
▫o- tibia, fibula
▫i- calcaneus
extensor digitorum longus
▫extends toes
▫o- tibia
▫i- phalanges
flexor digitorum longus
▫flexes toes
▫o- tibia
▫i- phalanges
iliotibial tract
▫o- gluteus maximus
▫i- tibia
muscles that adduct the thigh originate where?
pubis
2 muscles that originate at the iliac spine.
sartorius, rectus femoris
muscles that flex the leg (hamstrings) originate where?
ischium
3 muscles that connect to both the tibia and fibula
bicep femoris (i), peroneus longus(o), soleus(o)
2 muscles that insert on both the tarsals and metatarsals
tibialis anterior, peroneus longus
