deck_1332369

Question 23

Obliquus Capitis Superior

Answer 23

O- TPs of C1I- Occipital bone between superior and inferior nuchal linesA- Extension of head and lateral flexion of head and neckN- Suboccipital nerveB- Vertebral and occipital artery

Question 24

Vasculature of back

Answer 24

Transverse cervical artery, Dorsal Scapular artery, Thoracodorsal artery, Posterior intercostal Arteries, Occipital artery, Vertebral artery

Question 25

Transverse Cervical

Answer 25

highly variable, superfiscial cervical branch deep of trapezius, runs with CN XIdorsal scpular atery deep branch supplies levator scapulae and rhomboid muscles, artery does not branch from here

Question 26

Dorsal Scapular

Answer 26

from subclavian artery, passes through trunk of brachial plexus, supplies levator scapulae and rhomboid muscles and runs with dorsal scapular nerve

Question 27

Thoracodorsal artery

Answer 27

1 of 2 terminal branches of subscapular artery, supplies latissimus dorsi muscle and runs with thoracodorsal nerve

Question 28

Posterior Intercostal ateries

Answer 28

from descending thoracic aorta, dorsal cutaneous branches that supply deep back muscles

Question 29

Occipital artery

Answer 29

from external carotin artery, supplies posterior scalp and suboccipital muscles

Question 30

Vertebral Artery

Answer 30

from subclavian artery, enters neck at C6, passes thru transverse foramin and exits C1. supplys suboccipital region, enter foramen magnum with help of circle of willis

Question 31

Innervation of Back

Answer 31

Dorsal Rami of Spinal Nerve, Spinal Accessory, Thoracodorsal Nerve, Dorsal Scapular nerve

Question 32

Dorsal Rami of Spinal Nerve

Answer 32

fixed from spinal nerve, some unique rami; C1 - larger dorsal ramus exits b/w occiput and C1 vertebrae and is called suboccipital nerveC2 - larger doral ramus, exits b/w C1 and C2, medial division of this nerve is the greater occipital nervesupplies intrinsic back muscles

Question 33

Spinal Accessory Nerve

Answer 33

CN XI, supplies trapezius muscles

Question 34

Thoracodorsal Nerve

Answer 34

branch of posterior cord of brachial plexus C6-8, supplies latissimus dorsi muscle

Question 35

Dorsal Scapular Nerve

Answer 35

branch of ventral rams of C5, supplies the levator scapulae and rhomboid muscles