cervical plexus

Question 0

what do fibers from the inferior vagal ganglion communicate with?

Answer 0

the loop formed by C1 and C2

Question 1

what forms the cervical plexus?

Answer 1

anterior rami of C1-C4 spinal nerves

Question 2

what type of information is carried by spinal accessory nerve?

Answer 2

proprioceptive information

Question 3

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

Answer 3

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

Question 4

the sternocleidomastoid goes to which cervical nerves

Answer 4

C2

Question 5

the trapezius goes to what cervical nerve

Answer 5

C3 and C4

Question 6

which cervical nerve communicates with the hypoglossal nerve

Answer 6

C1 and C2

Question 7

the superior root of the ansa cervicalis comes where?

Answer 7

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

Question 8

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

Answer 8

thyrohyoid and geniohyoid

Question 9

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

Answer 9

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

Question 10

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

Answer 10

the lesser occipital nerve carries fibers from C2 and occasionally C3

Question 11

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

Answer 11

the lesser occipital nerve

Question 12

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

Answer 12

cervicogenic headache

Question 13

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

Answer 13

great auricular nerve carries fibers C2 and C3

Question 14

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

Answer 14

skin over the parotid gland

Question 15

the posterior branch of the great auricular nerve supplies what?

Answer 15

skin over the mastoid process

Question 16

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

Answer 16

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

Question 17

C3 and C4 trunks combine to form what nerve?

Answer 17

the medial, intermediate, and lateral supraclavicular nerves

Question 18

what area is supplied by the medial supraclavicular nerve

Answer 18

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

Question 19

what area is supplied by the intermediate supraclavicular nerve?

Answer 19

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

Question 20

what area is supplied by the lateral supraclavicular nerve

Answer 20

skin over the superior and lateral aspect of the shoulder

Question 21

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

Answer 21

medial and lateral series

Question 22

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

Answer 22

communicating and muscular branches

Question 23

the spinal accessory nerve receives information from where?

Answer 23

communicating branches carrying fibers from C2-4

Question 24

What are the muscular branches of the lateral series?

Answer 24

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

Question 25

Where does the medial series pass into?

Answer 25

the anterior triangle

Question 26

what are the communicating branches of the medial series?

Answer 26

• 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

Question 27

What are the muscular branches of the medial series?

Answer 27

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

Question 28

what makes up the inferior branch of the ansa cervicalis?

Answer 28

fibers from C2 and C3

Question 29

what is supplied by the ansa cervicalis?

Answer 29

sternohyoid, sternothyroid, both bellies of the omohyoid

Question 30

what makes up the Phernic nerve?

Answer 30

C3, C4, C5 with C4 contributing the most

Question 31

what is the path of the phernic nerve?

Answer 31

through the neck, anterior to the anterior scalene muscles

Question 32

What type of information is carried by the phernic nerve?

Answer 32

postganglionic sympathetic fibers from the cervical ganglia