Question

which of these muscles attaches to both the thyroid cartilage of the larynx and to the hyoid bone?

a thyrohyoid
b sternothyroid
c sternohyoid
d stylohyoid
e sternothyroid

Explanation:

Identify the target anatomical structures

The question asks for a muscle that attaches to both the thyroid cartilage of the larynx and the hyoid bone.

Analyze the muscle names and attachments

Using the Infrahyoid Muscles and Hyoid Bone Anatomy knowledge points:

• Thyrohyoid: The name combines "thyro-" (thyroid cartilage) and "-hyoid" (hyoid bone). It originates on the thyroid cartilage and inserts on the hyoid bone.
• Sternothyroid: Attaches from the sternum to the thyroid cartilage.
• Sternohyoid: Attaches from the sternum to the hyoid bone.
• Stylohyoid: Attaches from the styloid process of the temporal bone to the hyoid bone.

Select the correct option

The thyrohyoid muscle directly connects the thyroid cartilage to the hyoid bone, matching the criteria perfectly.

Answer:

• (A) Thyrohyoid (Correct answer)
• (B) Sternothyroid
• (C) Sternohyoid
• (D) Stylohyoid
• (E) Sternothyroid