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Flashcards in cervical plexus Deck (33)
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what forms the cervical plexus?

anterior rami of C1-C4 spinal nerves

1

what do fibers from the inferior vagal ganglion communicate with?

the loop formed by C1 and C2

2

what type of information is carried by spinal accessory nerve?

proprioceptive information

3

the spinal accessory nerve communicates with a loop formed by what nerves?

loop form C2 to C3 and a loop form C3 to C4

4

the sternocleidomastoid goes to which cervical nerves

C2

5

the trapezius goes to what cervical nerve

C3 and C4

6

which cervical nerve communicates with the hypoglossal nerve

C1 and C2

7

the superior root of the ansa cervicalis comes where?

the C1 and C2 nerves once they separate from the hypoglossal nerve

8

What do C1 fibers that remain with the hypoglossal nerve supply?

thyrohyoid and geniohyoid

9

what is carried by the three rami communicans of the superior cervical ganglion?

postganglionic sympathetic fibers (vasomotor, sudomotor, and pilomotor) to the loop between C1 and C2 and roots of C3 and C4

10

what supplies skin on the superior 1/3 of the auricle as well as the skin behind the ear?

the lesser occipital nerve carries fibers from C2 and occasionally C3

11

what nerves communicate with the greater occipital nerve and the great auricular nerve

the lesser occipital nerve

12

the lesser occipital nerve may be implicated in cases of what?

cervicogenic headache

13

what nerve enters the parotid gland and divides into anterior and posterior branches.

great auricular nerve carries fibers C2 and C3

14

the anterior branch of the great auricular nerve combine with the facial nerve supply what

skin over the parotid gland

15

the posterior branch of the great auricular nerve supplies what?

skin over the mastoid process

16

the skin over the platysma muscle is supplied by what nerve?

transverse cutaneous nerve of the neck with fibers from C2 and C3, which divide into ascending and descending branches

17

C3 and C4 trunks combine to form what nerve?

the medial, intermediate, and lateral supraclavicular nerves

18

what area is supplied by the medial supraclavicular nerve

skin inferior to the sternal end of the clavicle, as far as the second rib

19

what area is supplied by the intermediate supraclavicular nerve?

skin over the anterior deltoid and pectoralis major, as far as the second rib

20

what area is supplied by the lateral supraclavicular nerve

skin over the superior and lateral aspect of the shoulder

21

the deep branches of the cervical plexus is divided into what series

medial and lateral series

22

The lateral series passes into the posterior triangle and consists of what type of branches?

communicating and muscular branches

23

the spinal accessory nerve receives information from where?

communicating branches carrying fibers from C2-4

24

What are the muscular branches of the lateral series?

Sternocleidomastoid-proprioception from C2-4
Trapezius - proprioception from C2, perhaps C3
Levator scapula - innervated by C3-4, motor +sensory
Middle scalene - C3,C4

25

Where does the medial series pass into?

the anterior triangle

26

what are the communicating branches of the medial series?

-between the vagus and loop between C1 and C2
-3 or 4 gray rami communicans from the superior cervical ganglion
-fibers from C1 communicating with the hypoglossal nerve

27

What are the muscular branches of the medial series?

-rectus capitis lateralis; C1
-rectus capitis anterior; C1, C2
-longus capitis C1-C3
-longus colli; C2-C4

28

what makes up the inferior branch of the ansa cervicalis?

fibers from C2 and C3

29

what is supplied by the ansa cervicalis?

sternohyoid, sternothyroid, both bellies of the omohyoid