Posterior Triangle - 9/29/13 Monday

Question 1

What nerve is lying on the anterior scalene m.?

Answer 1

Phrenic nerve (3,4,5 keeps diaphragm alive)

Question 2

What lies 1 finger away from the sternum, deep to the ribs?

Answer 2

Internal thoracic artery

Question 3

What nerve rolls with the internal jugular vein and the common carotid artery?

Answer 3

Vagus nerve (X)

Question 4

What lies between the anterior and middle scalene muscles?

Answer 4

subclavian artery

Question 5

What marks inferior border of occipital triangle?

Answer 5

Inferior belly of the omohyoid m.

Question 6

What nerve lies below the C8 vertebrae?

Answer 6

There is no C8 vertebrae.

Question 7

Which two nerves, both sensory and both emerging from Erb’s point, have THREE branches?

Answer 7

1. Transverse cervical n.

2. Supraclavicular n.

Question 8

T/F: C3, C4, and C5 make up the long thoracic n.

Answer 8

F: C345 is phrenic nerve. LT is C567

Question 9

Which cervical nerve root is shared between the long thoracic n. and the phrenic n?

Answer 9

C5