1 and 2 form the ______ layer

endothelium
subendothelial layer
Tunica intima
3

internal elastic lamina
4
What is it composed of?
Tunica media
Smooth muscle, elastic fibers
5

external elastic lamina
6
What is it composed of

Tunica externa
collagen fibers
1

basilar artery
2

vertebral artery
3

internal carotid artery
4

external carotid
5

common carotid
6

thyrocervical trunk
7

costocervical trunk
8

subclavian artery
9

axillary artery
10

opthalamic artery
11

superficial temporal artery
12

maxillary artery
13

occipital artery
14

facial artery
15

lingual artery
16

superior thyroid artery
17

larynx
18

thyroid
20

brachiocephalic trunk