Question

multiple select question

select all that apply

which are extrinsic tongue muscles?

genioglossus
hyoglossus
palatoglossus
medial pterygoid
styloglossus
lateral pterygoid

Explanation:

Define extrinsic tongue muscles

An Extrinsic Muscle is a muscle that originates outside the organ or structure it moves and inserts into it. For the tongue, extrinsic muscles originate from nearby bones (such as the mandible, hyoid bone, styloid process, or soft palate) and insert into the tongue to alter its position.

Identify the extrinsic tongue muscles

There are four major extrinsic muscles of the tongue:

1. Genioglossus: Originates from the mandible (mental spine) and inserts into the tongue.
2. Hyoglossus: Originates from the hyoid bone and inserts into the tongue.
3. Styloglossus: Originates from the styloid process of the temporal bone and inserts into the tongue.
4. Palatoglossus: Originates from the soft palate (palatine aponeurosis) and inserts into the tongue.

Evaluate the given options

• Genioglossus: This is an extrinsic tongue muscle.
• Hyoglossus: This is an extrinsic tongue muscle.
• Palatoglossus: This is an extrinsic tongue muscle.
• Medial pterygoid: This is a muscle of mastication, not a tongue muscle.
• Styloglossus: This is an extrinsic tongue muscle.
• Lateral pterygoid: This is a muscle of mastication, not a tongue muscle.

Answer:

• Genioglossus (Correct answer)
• Hyoglossus (Correct answer)
• Palatoglossus (Correct answer)
• Medial pterygoid
• Styloglossus (Correct answer)
• Lateral pterygoid