Week 8 Muscle O's, I's, A's Flashcards by Jessica Taylor

Q

Trapezius insertion

A

Scapula and clavicle

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Q

Trapezius origin

A

Occipital bone and vertebrae

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Q

Trapezius action

A

Stabilizes and raises scapula

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Q

Sternocleidomastoid origin

A

Sternum and clavicle

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Q

Sternocleidomastoid insertion

A

Mastoid process of temporal bone

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Q

Sternocleidomastoid action

A

Flexes and rotates head

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Q

Deltoid origin

A

Clavicle and scapula

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Q

Deltoid insertion

A

Humerus

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Q

Deltoid action

A

Adducts arm

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Q

Latissimus dorsi origin

A

Vertebrae, ribs, and ilium

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Q

Latissimus dorsi insertion

A

Humerus

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Q

Latissimus dorsi action

A

Extends and adducts arm

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Q

Biceps brachii origin

A

Scapula

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Q

Biceps brachii insertion

A

Radius

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Q

Biceps brachii action

A

Flexes forearm; supinates hand

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Q

Pronator teres origin

A

Humerus and ulna

Q

Pronator teres insertion

A

Radius

Q

Pronator teres action

A

Pronates hand

Q

Rectus abdominis origin

A

Pubis

Q

Rectus abdominis insertion

A

Sternum and costal cartilages

Q

Rectus abdominis action

A

Flexes torso

Q

Gluteus maximus origin

A

Ilium, sacrum, and coccyx

Q

Gluteus maximus insertion

A

Femur and iliotibial tract

Q

Gluteus maximus action

A

Extends thigh

Q

Rectus femoris origin

A

Ilium

Q

Rectus femoris insertion

A

Tibia

Q

Rectus femoris action

A

Extends lower leg; flexes thigh

Q

Gastrocnemius origin

A

Femur

Q

Gastrocnemius insertion

A

Calcaneus

Q

Gastrocnemius action

A

Plantar flexes foot

Q

Closest point, doesn’t move as much

A

Origin

Q

More movable point; farther away

A

Insertion