sensory innervation and veins of head and neck

Question 1

the sensory information from the posterior neck and scalp is from?

Answer 1

dorsal primary rami of C2-4

Question 2

what nerve is the posterior primary ramus of C2?

Answer 2

greater occipital nerve

Question 3

what does the greater occipital nerve supply?

Answer 3

occipital region

Question 4

what nerve is the posterior primary ramus of C3?

Answer 4

third occipital nerve

Question 5

what does the third occipital nerve supply?

Answer 5

upper part of back of neck

Question 6

what does the posterior primary ramus of C4 supply?

Answer 6

lower part of back of neck

Question 7

which posterior root has no sensory fibers only motor?

Answer 7

C1

Question 8

what forms the cervical plexus?

Answer 8

ANTERIOR primary rami of C1-4

Question 9

what are the 4 sensory branches of the cervical plexus?

Answer 9

lesser occipital nerve C2
great auricular nerve C2,3
transverse cervical nerve C2,3
supraclavicular nerve C3,4

learning good takes studying

Question 10

what are the 3 branches of the supraclavicular nerve?

Answer 10

medial, intermediate and lateral supraclavicular

Question 11

where does the cervical plexus carry motor fibers to?

Answer 11

infrahyoid muscles

Question 12

where do the motor fibers of the cervical plexus arise from?

Answer 12

ansa cervicalis

Question 13

what are the 2 parts of the ansa cervicalis?

Answer 13

superior root- C1-3

inferior root- C2-3

Question 14

what does the ansa cervicalis C1-3 supply?

Answer 14

3 of the 4 infrahyoid muscles:

sternohyoid, sternothyroid and omohyoid

Question 15

what does the 4th infrahyoid muscle, thyrohyoid receive its innervation from?

Answer 15

C1 fibers through the hypoglossal nerve

Question 16

what is the other nerve that is usually considered to be a part of the cervical plexus?

Answer 16

phrenic nerve- it originates from C3, 4, 5

Question 17

what type of nerve is the phrenic nerve?

Answer 17

mixed-both sensory and motor

Question 18

where does the phrenic nerve carry its motor and sensory nerve fibers to?

Answer 18

motor- diaphragm

sensory- membranes of thorax and abdomen

Question 19

which muscle does the phrenic nerve lie anterior to?

Answer 19

anterior scalene muscle

Question 20

what is the largest and only vein on the external SCM?

Answer 20

external jugular vein

Question 21

what is the function of the external jugular vein?

Answer 21

drain the face and scalp and contain a large amount of cerebral blood

Question 22

what 2 veins come together to form the external jugular vein?

Answer 22

retromandibular
posterior auricular

below the parotid gland

Question 23

where does the external jugular vein run?

Answer 23

down and back along the lateral surface of the SCM

Question 24

where does the external jugular vein empty?

Answer 24

subclavian vein

Question 25

what are the 6 tributaries of the external jugular vein?

Answer 25

suprascapular
transverse cervical
anterior jugular
retromandibular
posterior auricular
posterior external jugular

STARPP

Question 26

what other structure is found along the external jugular vein superficial to the SCM?

Answer 26

superficial cervical lymph nodes