Exam 2 Flashcards
Epicranius action
Raises eyebrows
Obicularis Oculi action
Closes eyes
Obicularis Oris action
Closes lips
Zygomaticus action
Smiling
Zygomaticus insertion
Corners of mouth
Zygomaticus origin
Zygomatic bone
Masseter action
Closes jaw
Temporalis action
Closes jaw
Diaphragm action
flattens, increasing thorax volume during inspiration
External intercostals origin
inferior border of rib above
External intercostals insertion
superior border of rib below
External intercostals action
elevate rib cage during inspiration
Internal intercostals origin
Superior border of rib below
internal intercostals insertion
inferior border of rib above
internal intercostals action
lower rib cage during forced expiration
Biceps brachii origin
scapula
Biceps brachii insertion
radius
Biceps brachii action
flexes elbow
deltoid origin
clavicle and scapula
deltoid insertion
humerus
deltoid action
abducts arm
Latissiumus dorsi insertion
humerus
Latissimus dorsi action
extends arm
Pectorals major action
flexes arm
Trapezius (point)
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