Deep back, shoulder, posterior compartment of arm

Question 1

Illiocostalis

Answer 1

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Question 2

Longissiumus

Answer 2

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Question 3

Spinalis

Answer 3

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Question 4

Splenius capitis

Answer 4

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Question 5

splenius cervicis

Answer 5

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Question 6

subscapularis

Answer 6

Origin: subscapular fossa

Point of Insertion: lesser tubercule of humerus

Innervation: subscapular artery

Blood Supply: subscapular nerve

Action: internally rotates and adducts humerus, stabilizes shoulder

Question 7

Multifidus

Answer 7

Origin: sacrum, posterior superior illiac spine

Point of Insertion: spinous process 2-4 vertebrae superior to origin

Innervation: posterior branches

Blood Supply: lateral sacral artery

Action: stabilizes vertebrae in local movements of vertebral column

Question 8

Rotatores

Answer 8

Origin: sacrum

Point of Insertion: spinous process

Innervation: posterior branches

Blood Supply:

Action:

Question 9

Semispinalis capitis

Answer 9

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Question 10

semispinalis cervicis

Answer 10

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Question 11

Lateral head of triceps brachii

Answer 11

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Question 12

Medial head of triceps brachii

Answer 12

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