HAP Unit #6 -- Flashcard #1: Facial & Neck Muscles

Front

What is the function of the orbicularis oculi muscle?

Back

The orbicularis oculi muscle surrounds the eye and is responsible for closing the eyelids, allowing for blinking and protecting the eye.

Front

What is the orbicularis oris muscle?

Back

The orbicularis oris muscle is a circular muscle that surrounds the mouth, responsible for movements such as puckering and closing the lips.

Front

Identify the muscle that helps in smiling and is located at the cheek area.

Back

Zygomaticus major is the muscle that helps in smiling and is located at the cheek area.

Front

What is the role of the masseter muscle?

Back

The masseter muscle is one of the primary muscles used for chewing, responsible for elevating the mandible.

Front

Describe the function of the temporalis muscle.

Back

The temporalis muscle is involved in the elevation and retraction of the mandible, aiding in the chewing process.

Front

What is the cranial aponeurosis?

Back

The cranial aponeurosis is a fibrous tissue that connects the frontalis muscle to the occipitalis muscle, forming the epicranial aponeurosis.

Front

Which muscle is responsible for frowning?

Back

The corrugator supercilii muscle is responsible for frowning by drawing the eyebrows together.

Front

What is the primary action of the buccinator muscle?

Back

The buccinator muscle compresses the cheeks against the teeth, aiding in chewing and preventing food from accumulating in the cheeks.

Front

Explain the significance of the platysma muscle.

Back

The platysma muscle is a superficial muscle that helps in facial expressions, particularly in lowering the jaw and pulling down the corners of the mouth.

Front

What is the difference between the orbicularis oculi and orbicularis oris muscles?

Back

The orbicularis oculi muscle surrounds the eye and closes the eyelids, while the orbicularis oris muscle surrounds the mouth and controls lip movements.