Musculus pterygoideus medialis

The video tutorial discusses the medial pterygoid muscle, a key component of the chewing muscles. It covers the muscle's origin, approach, innervation, and functions. The medial pterygoid, also known as the inner wing muscle, originates in the Fossa Perrigo idea and attaches to the wedge leg. It works with the masseter muscle to form a loop around the lower jaw, aiding in jaw elevation and protrusion. The muscle is innervated by the mandibular nerve, facilitating its role in mastication.

Which muscle is specifically discussed as part of the chewing muscles?

• Medial pterygoid muscle

• Temporalis muscle

• Masseter muscle

• Lateral pterygoid muscle

Where does the medial pterygoid muscle originate?

• Fossa Perrigo idea

• Zygomatic arch

• Temporal fossa

• Mandibular notch

What forms a loop around the lower jaw along with the medial pterygoid muscle?

• Masseter muscle

• Buccinator muscle

• Temporalis muscle

• Lateral pterygoid muscle

Which nerve is responsible for the innervation of the medial pterygoid muscle?

• Glossopharyngeal nerve

• Mandibular nerve

• Hypoglossal nerve

• Facial nerve

What is the function of the medial pterygoid muscle during contraction?

• Lifts the jaw

• Depresses the jaw

• Rotates the jaw

• Retracts the jaw