Anterior Triangle of the Neck Flashcards
1
Q
What is the bump on the back of your head called?
A
External occipital protuberance
2
Q
8 anterior triangle muscles
A
Digastric Mylohyoid Stylohyoid Sternohyoid Omohyoid Thyrohyoid Sternothyroid Geniohyoid
3
Q
What is the innervation of each of the suprahyoid muscles
A
Digastric anterior belly: CN V3 Mylohyoid: CN V3 Stylohyoid: CN 7 Digastric posterior belly: CN 7 Geniohyoid: C1 via CN12
4
Q
Ansa Cervicalis
A
C1, C2, C3 nerve plexus
Motor nerves
C1 forms superior root, C2 and C3 form inferior root
Supply all infrahyoid muscles (except thyrohoid which is C1 via CN12)
5
Q
Pyramidal lobe
A
Embryological remnant of the thymus
Can project up to hyoid bone or connect to tongue
6
Q
Recurrent laryngeal nerves
A
Innervate the vocal cords
Important for speaking ad breathing
Close to the thyroid
7
Q
What is the innervation of the infrahyoid muscles?
A
Sternothyroid, omohyoid, sternohyoid: ansa cervicalis
Thyrohyoid: C1 via CN12
