extrinsic mm of the tongue Flashcards
1
Q
hyoglossus origin
A
hyoid bone
2
Q
genioglossus insertion
A
hyoid bone and instrinsic mm
3
Q
all extrinsic mm of the tongue are innervated by ___ except for __ which is innervated by ___
A
all by hypoglossal n except for palatoglossus m which is innervated by pharyngeal branch of pharyngeal plexus (CN10)
4
Q
hyoglossus insertion
A
tongue
5
Q
action of hyoglossus
A
- depression
- retrusion
6
Q
action of palatoglossus
A
- depress palate
- close OP isthmus
- elevate back of tongue
7
Q
palatoglossus origin
A
palatine aponeurosis
8
Q
action of genioglossus
A
- protrusion
- depress central part of tongue
9
Q
origin styloglossus
A
- styloid process
- stylohyoid ligament
10
Q
action styloglossus
A
- retraction
- curls sides of tongue
- elevates posterior aspect of tongue
11
Q
genioglossus origin
A
superior mental spines
12
Q
insertion styloglossus
A
tongue
13
Q
palatoglossus insertion
A
tongue
