L6 Cervical Spine and Neck

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

vasculature of the neck (subclavian artery)

Answer 10

• subclavian a. supplies inferior and/or posterior structures
  
  • main brr. include:
    
    • vertebral a.
    • interior thoracic a.
    • thyrocervical trunk
    • constocervical trunk
  • becomes axillary a.

Question 11

vertebral arteries

Answer 11

• two going through the “foraminae transveraria” of C6 to C1
• supplies 1/4 of the blood supply each (i.e. 1/2 total)
• vulnerable to “dissection

Question 12

carotid arteries

Answer 12

• R and L common carotid aa. supplies rest of head and neck and bifurcates to:
  
  • internal carotid a.
    
    • ​only supplies internal structures
    • doesn’t branch in neck
    • two ICA provide rest of brain blood supply
  • external carotid a.
    
    • ​does branch in neck
    • key brr. to viscera and other soft tissue

Question 13

Answer 13

Question 14

Answer 14

• splenius = bandage
• splenius capitis m.: wraps around head
• splenius cervicis m.: wraps around neck

Question 15

Answer 15

• splenius capitis m. wraps around semispinalis capitis, longissumus capitis, longissumus cervicis and semispinalis cervicis mm. - long muscles for stability

Question 16

Answer 16

Question 17

hyoid bone

Answer 17

• floating bone under jaw, suspended by muscles and stuff
• holds up tongue and larynx

Question 18

Answer 18

Question 19

Answer 19

Question 20

Answer 20

Question 21

muscles closest to the vertebra

Answer 21

• general two groups: pre-vertebral mm. and lateral vertebral mm.

Question 22

cervical ribs

Answer 22

• congenital development of additional rib on C7
• can predispose to Thoracic Outlet Syndrome (but usually not a problem)