cervical triangle

Question 1

what are the 3 regions of the post cervical triangle

Answer 1

lat + ant cervical triangle seperated by the SCM region

Question 2

Ant, Post and Inf borders of ccervical tri

Answer 2

Ant- post border of SCM
post- ant border of trapezius
inf-middle 1/3 of clavical

Question 3

where is the nerve point

Answer 3

post 1/3 and middle 1/3 of SCM

-a bunch of cut. nerves of the cervical plexus emerge here and innervate the skin

Question 4

what travels thru the occipital triangle

Answer 4

cervical n.
spinal accessory n.
Occipital A+V

Question 5

what travels thru the omoclavicular tr

Answer 5

Brachial n plexus

Subclavian A + V

Question 6

the brachial plexus travels between what 2 scalenes

Answer 6

Ant and middle scalene

Question 7

what is the deepest fascia in the neck and what does it envelop

Answer 7

Deep fascia prevertebral- all deep muscles (ant + middle scalene and brachial plexus)

Question 8

what lvls give you the cervical n plexus

Answer 8

C1-4 APR

Question 9

what are the cutaneous n of the cervical n plexus (4)

Answer 9

lesser occipital (c2,3)- behind ear
great auricular (c2,3)= under ear and back half of it
Transverse cervical (c2,3)- front of neck
supraclavicular (c3-5)- shoulder region

Question 10

what are the motor nerves of cervical plexus (1)

Answer 10

phrenic n c3,4 from cervcal and c5 from brachial

Question 11

what is the first nerve to appear at the nervepoint and parth of it

Answer 11

deep to SCM

Spinal Accessory N

Question 12

the external jugular vein is a continuation of what vein

Answer 12

post auricular v

Question 13

path of external jugular

Answer 13

joins retromandibular v and travels along roof of post cert triangle across subclavian vein and drain into brachiocephalic v the vena cava

Question 14

muscular floor of post cervical triangle

Answer 14

ant scalene, middle scalene, post scalene, lev snap, splenius cap

Question 15

what does the subclavian a come from on L and R

Answer 15

left- from aortic arch directly

right- from brachiocephalic trunk

Question 16

where do you palpate the subclavian a

Answer 16

supracalvicular foss (oomoclavicular triangle)

Question 17

on what side of the ant scalene muscle will you find the phrenic nerve

Answer 17

laterally (crosses lat to med when entering thoracic cavity)

Question 18

dorsal scap nerve is deep to what scalene

Answer 18

middle

Question 19

path of long thoracic nerve (lvls)

Answer 19

c5-8

-deep to mid scalene

Question 20

location of spinal accessory, dorsal scap, long thorcic, suprasca and phrenic n in relation to scalenes/lev

Answer 20

spinal access- behind levator
dorsal scap, long snap- behind middle
suprascap- ant to middle
phrenic- ant to ant

Question 21

lesion of the spinal accessory nerve by the surgical procedures in post cer triangle leads to

Answer 21

unilat paralysis of traps and SCM

Question 22

how do u do a phrenic nerve block

Answer 22

anesthetic is injected around where the nerve lies on ant scalene

Question 23

for anesthesia where is the main injection site

Answer 23

sup to midpoint of the clavical

Question 24

what does a injury to upper trunk of the brachial plexus + suprascap nerve result in and how does it happen

Answer 24

• fracture of middle 1/3 of clav

- leads to waiters tip pos (upper limb extended and medially rotated)

Question 25

what does prominence of external jugular vein idication of

Answer 25

obstruction of venous blood flow in SVN, heart failure or enlarged supraclacular lymph nodes