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Exam 3

A&P

QuestionAnswer
epicranius frontalis helps to raise eyebrows
epicranius occipitalis pull scalp posteriorly or fix aponeurosis
obicularis oculi close eye and pull eyebrow downward
masseter elevate mandible (close jaw)
temporalis elevate mandible (close jaw)
sternocleidomastoid flexion of neck or rotate head toward opposite direction
digastric elevate hyoid bone or depress mandible (open jaw)
mylohyoid elevate hyoid bone and base of tongue
pectoralis major adduct and medially rotate arm o pull chest upward to inhale
sternohyoid depress larynx and hyoid bone
serratus anterior pull scapula anterior/inferior or abduct arm
deltoid abduct arm or flexion, extension or rotation of humerus
pectoralis minor move scapula anterior/inferior raise ribs to inhale
rectus abdominis flex vertebral column, depress ribs, constrict and compress abdomen causing increased abdominal pressure to exhale
external oblique flex vertebral column, depress ribs, constrict and compress abdomen causing increased abdominal pressure to exhale, rotate trunk to opposite side
internal oblique same actions as external oblique, but in perpendicular direction and rotate trunk to the same side
transverse abdominis compress abdomen to exhale
trapezius elevating or moving scapulal; extend head
latissimus dorsi extend, adduct and medially rotate arm
infraspinatus stabilizes the shoulder joint and laterally rotates the arm
teres minor stabilizes the shoulder joint and laterally rotates the arm
supraspinatus stabilizes the shoulder joint and abducts the arm
subscapularis stabilizes the shoulder joint and medially rotates the arm
levator scapulae elevates and adducts scapulae or flexes neck
rhomboids retracts scapula (squares shoulders)
brachiordialis flex forearm
brachialis flex forearm
triceps brachii powerfully extend of forearm
pronator teres pronate and weakly flex forearm
flexor carpi radialis flex and adduct hand at wrist
palmaris longus flex hand at wrist
flexor carpi ulnaris flex and adduct hand at wrist
extensor carpi radialis extend and abduct hand at wrist
extensor digitorum extends fingers and hand at wrist
extensor carpi ulnaris extend and adduct had at wrist
illipsoas flex trunk or thigh at hip
sartorius flex, abduct and laterally rotate thigh; flex shank
quadriceps femoris extends and stabilzes knee
quadriceps femoris 3 superficial heads rectus femoris, vastus lateralis, and vastus medialis
rectus femoris knee extension, hip flexion
vastus medialis extends leg
tensor fasciae latae flex, abduct and medially rotate thigh
adductor group adduct, flex and medially rotate thigh
3 muscles of the adductor group magnus, longus, and brevis
pectineus adduct, flex and medially rotate thigh
gracilis adduct and flex thigh
gluteus maximus laterally rotate, abduct and powerfully extend thigh
gluteus medius abduct and medially rotate thigh
biceps femoris extend thigh, flex knee and laterally rotate leg
semitendinosus extend thigh and medially rotate leg
semimembranosus extend thigh and medially rotate leg
fibularis longus plantar flex and evert foot
tibialis anterior dorsiflex and invert foot
extensor digitorum longus extend toes and dorsiflex fot
triceps surae 2 parts gastrocnemius and soleus
gastrocnemius plantarflex foot, may flex knee
soleus plantarflex foot
vastus lateralis extends and stabilizes knee
Created by: danat214