Extrinsic Tongue Muscles Flashcards
Where are the origins for the Extrinsic Tongue Muscles?
Outside the tongue
Where are the insertions for the Extrinsic Tongue Muscles?
Within the tongue
Origins and insertions for the Extrinsic Tongue Muscles are also known as?
Attachments
What are the functions for the Extrinsic Tongue Muscles?
- Speech
- Mastication
- Swallowing
Name the 3 Extrinsic Tongue Muscles
- Genioglossus Muscle
- Styloglossus Muscle
- Hyoglossus Muscle
What is the origin for the Genioglossus Tongue Muscle?
Genial tubercles of the mandible
What is the insertion for the Genioglossus Tongue Muscle?
Ventral surface of the tongue
underside
What is the action of the Genioglossus Tongue Muscle?
Protrusion of the tongue
sticking out your tongue
Describe the Genioglossus Tongue Muscle
it is the largest of the Extrinsic Tongue Muscles and it is triangular in shape
What is the origin for the Styloglossus Tongue Muscle?
Styloid process of temporal bone
What is the insertion for the styloglossus tongue muscle?
Lateral surface
apex
base of the tongue
What is the action of the styloglossus tongue muscle?
Retracts the tongue
What is the origin for the Hyoglossus tongue muscle?
body of hyoid (& greater cornu)
just know the body of hyoid
What is the insertion for the Hyoglossus tongue muscle?
lateral surface of the tongue
What is the action of the Hyoglossus Tongue muscle?
Depresses of tongue
bring down