muscles of the tongue (external tongue muscles)

Question 1

genioglossus

Answer 1

(general plate)
O: internal & medial surface of the mandible (inside of the chin)
I: inferior tongue & body of the hyoid bone
A: depresses & protracts the tongue

Question 2

styloglossus

Answer 2

O: styloid process of the temporal bone
I: inferolateral tongue
A: retracts & elevates the tongue
This muscle runs just under the tongue. Think about it, it elevates the tongue as it is beneath it, pushes it from down.

Question 3

hyoglossus

Answer 3

Below the styloglossus and is a bigger muscle
O: body & greater horn of the hyoid bone
I: Inferolateral tongue
A: depresses & protracts the tongue.
Think about it: since it is a big muscle, it is heavy. Therefore it depresses the tongue (keeps it down).

Question 4

Tongue

Answer 4

IS a muscle.
Has small muscles that fold, curl, squeeze to talk and chew. These muscles are called intrinsic tongue muscles.