Muscles of the Head and Neck

What muscle closes the eyelids?

• Orbicularis Oculi

• Rectus Abdominis

• Deltoid

• Trapezius

How does the Sternocleidomastoid muscle assist in head movement?

• It allows for rotation and flexion of the neck, enabling head movement.

• It stabilizes the head during lateral movements.

• It primarily assists in shoulder elevation.

• It is responsible for the extension of the neck.

What is the function of the Platysma muscle?

• It helps to raise the eyebrows.

• It assists in lowering the jaw and can also aid in facial expressions.

• It is responsible for rotating the head.

• It helps in breathing by expanding the chest.

What is the primary action of the Masseter muscle?

• Elevates the mandible, playing a key role in the chewing process.

• Depresses the mandible during relaxation.

• Rotates the mandible for lateral movement.

• Stabilizes the jaw during speech.

Which muscle helps rotate the head and flex the neck?

• Trapezius muscle

• Sternocleidomastoid muscle

• Scalenes muscle

• Levator scapulae muscle

What is the role of the Mentalis muscle?

• It elevates and protrudes the lower lip, often associated with pouting.

• It helps in chewing and grinding food.

• It assists in closing the eyelids tightly.

• It raises the eyebrows and wrinkles the forehead.

What is the significance of the Frontalis muscle?

• It raises the eyebrows and wrinkles the forehead, contributing to facial expressions.

• It helps in chewing and moving the jaw.

• It controls the movement of the eyes and eyelids.

• It is responsible for the movement of the neck and head.

What is the Buccinator muscle's role?

• It helps in the movement of the jaw during chewing.

• It compresses the cheeks against the teeth, aiding in chewing and keeping food in place.

• It is responsible for the sensation in the face.

• It assists in the production of saliva.

What is the function of the Zygomaticus muscle?

• It is responsible for elevating the corners of the mouth, contributing to smiling.

• It helps in the movement of the jaw during chewing.

• It aids in the rotation of the head.

• It is involved in the contraction of the abdominal muscles.

What is the primary function of the Temporalis muscle?

• To flex the elbow joint

• To elevate and retract the mandible

• To extend the knee joint

• To rotate the shoulder joint