Functions of the shoulder muscles

The video tutorial discusses the medial teragrid muscle, a jaw muscle located on the inner surface of the mandible. It covers the muscle's origin, insertion, and function, highlighting its role in jaw closure and protrusion. The muscle is supplied by the medial teragrid nerve, a branch of the mandibular nerve. The tutorial emphasizes the muscle's importance in mastication and its interaction with the masseter muscle. Additional resources for further learning are provided.

Where does the medial teragrid muscle originate?

• From the temporal bone

• From the maxillary sinus

• From the zygomatic arch

• From the teranoid fossa and teratoid process of the sphenoid

What is the primary function of the medial teragrid muscle?

• To depress the mandible

• To elevate and protrude the mandible

• To rotate the mandible

• To retract the mandible

Which nerve supplies the medial teragrid muscle?

• Trigeminal nerve

• Facial nerve

• Hypoglossal nerve

• Medial teragrid nerve

What is the role of the muscle sling formed by the medial teragrid and masseter muscles?

• To assist in jaw opening

• To stabilize the hyoid bone

• To aid in tongue movement

• To reinforce jaw closure and protrusion

What additional resources are suggested for learning anatomy?

• Interactive videos and quizzes

• Printed textbooks

• Audio lectures

• Virtual reality simulations