Exam 3 Muscles Flashcards
orbicularis oculi
Action
Action:
blinking, squinting
orbicularis oris
Action
Action:
mouth close lips, kissing, whistling
masseter
Origin, Insertion, Action
Origin: zygomatic arch Insertion: lateral mandible Action: elevate (closes) jaw
temporalis
Action:
elevate jaw
sternocleidomastoid
Origin, Insertion, Action
Origin: sternum, clavicle Insertion: mastoid process of temporal bone Action: Solo: rotate head opposite side; Together: flex head
pectoralis major
Action:
Adduct arm
deltoid
Action:
Abduct arm
diaphragm
Action:
inspiration
rectus abdominis (Origin, Insertion, Action)
Origin: pubic crest and symphysis Insertion: inferior ribs Action: flex vertebral column
triceps brachii - long head - medial head - lateral head (Insertion, Action)
Insertion:
Ulna: olecranon process (all 3)
Action:
extends arm at elbow
biceps brachii
Origin, Insertion, Action
Origin: Scapula Insertion: Radial tuberosity Action: flexes arm at elbow & shoulder
pronator teres
Action:
pronate forearm
palmaris longus
Action:
Flexion at wrist
extensor digitorum
Action:
extend fingers and wrist
sartorius
Origin, Insertion, Action
Origin: ilium Insertion: tibia Action: flex and rotate leg
gracilis
Origin, Insertion, Action
Origin: pubic symphysis Insertion: tibia Action: adduct, flex, rotate leg
Rectus femoris
Origin, Insertion, Action
Origin: ilium Insertion: tibial tuberosity Action: extend leg at knee
Vastus lateralis
— medialis
— intermedius
(Origin, Insertion, Action)
Origin: Femur Insertion: tibiali tuberosity Action: Extend leg at knee
Hamstring muscles -biceps femoris -semimembranosus -semitendinosus (Origin, Insertion, Action)
Origin: ischial tuberosity Insertion: tibia Action: flex leg at knee
Tibialis anterior
Origin: tibia: lateral condyle Insertion: 1st tarsel and metatarsal Action: Flex foot (dorsiflexion)
Gastrocnemius
Insertion and Action
Insertion:
Calcaneus
Action:
Extend foot
Soleus
Insertion and Action
Insertion:
Calcaneus
Action:
Extend foot
