6 - hyoid bone, strap muscles of the neck and cervical plexus

Question 1

4 muscles attached to the hyoid bone?

Answer 1

suprahyoid muscles
infrahyoid muscles
hypoglossus
genioglossus

Question 2

nerve supply of the mylohyoid?

Answer 2

mylohyoid n

Question 3

nerve supply of the geniohyoid?

Answer 3

cervical spine n 1 via hypoglossal n (CN XII)

Question 4

nerve supply of the anterior belly of digastric?

Answer 4

mylohyoid n

Question 5

nerve supply of the posterior belly of digastric?

Answer 5

facial n (CN VII)

Question 6

nerve supply of the stylohyoid?

Answer 6

facial n (CN VII)

Question 7

what is the mylohyoid n?

Answer 7

a branch of the CN V3

Question 8

name the 4 suprhyoid muscles?

Answer 8

mylohyoid
geniohyoid
digastric
stylohyoid

Question 9

what is the action of the suprahyoid muscles on the mandible and hyoid?

Answer 9

move the mandible and the hyoid upwards

Question 10

name 4 infrahyoid muscles?

Answer 10

sternohyoid
sternothyroid
thyrohyoid
omohyoid

Question 11

nerve supply of the sternohyoid?

Answer 11

ansa cervicalis

Question 12

nerve supply of the sternothyroid?

Answer 12

ansa cervicalis

Question 13

nerve supply of the thyrohyoid?

Answer 13

C1

Question 14

nerve supply of the omohyoid?

Answer 14

ansa cervicalis

Question 15

how does the C1 nerve supply reach the thyrohyoid muscle?

Answer 15

hitches a ride on the hypoglossal n

Question 16

what is the action of the infra hyoid muscles on the hyoid bone and larynx?

Answer 16

downwards

Question 17

what are the vertebral root values of the cervical plexus?

Answer 17

C1-4

Question 18

where does the cervical plexus emerge?

Answer 18

between the elevator scapulae and the scelemus medius

Question 19

what is a motor nerve that emerges from the cervical plexus?

Answer 19

phrenic nerve

Question 20

what is the ansa cervicalis?

Answer 20

C1-3 - loop of nerves that are part of the cervical plexus