Gross Anatomy of the Muscular System Muscles of the Head and Neck 1. Using choices from the list at the right, correctly identify the muscles provided with leader lines on the diagram. Cranial aponeurosis 2. Using the terms provided above, identify the muscles described next. 1. used to grin 2. important muscle to a saxophone player 3. used in blinking and squinting 4. used to pout (pulls the corners of the mouth downward) 5. raises your eyebrows for a questioning expression 6. your “kisser” 7. allows you to “bite” that carrot stick 8. tenses skin of the neck during shaving buccinator frontalis masseter platysma occipitalis orbicularis oculi orbicularis oris zygomaticus Review Sheet 12
The Correct Answer and Explanation is:
Here are the correct answers for the muscle identification based on the descriptions provided:
- Used to grin: Zygomaticus
The zygomaticus muscles are responsible for raising the corners of the mouth, helping in the expression of a smile or grin. - Important muscle to a saxophone player: Buccinator
The buccinator muscle is involved in pressing the cheeks inward and plays a role in playing wind instruments, like the saxophone, by controlling the flow of air and assisting with making sound. - Used in blinking and squinting: Orbicularis oculi
This muscle surrounds the eyes and is primarily responsible for closing the eyelids, which helps in blinking and squinting. - Used to pout (pulls the corners of the mouth downward): Orbicularis oris
The orbicularis oris is the muscle around the mouth, and it helps to shape the mouth for various movements like puckering (pouting). - Raises your eyebrows for a questioning expression: Frontalis
The frontalis muscle is located on the forehead and raises the eyebrows, creating an expression that is often associated with questioning or surprise. - Your “kisser”: Orbicularis oris
The orbicularis oris is also referred to as the “kisser” because it controls the movement of the lips, such as for kissing. - Allows you to “bite” that carrot stick: Masseter
The masseter muscle is one of the primary muscles used in chewing, allowing you to bite down on objects like a carrot stick. - Tenses skin of the neck during shaving: Platysma
The platysma is a thin muscle in the neck that helps tense the skin of the neck, making it more taut, which is helpful during shaving.
These answers reflect the main functions of the muscles involved in facial expressions, chewing, and actions like blinking and squinting. Each muscle has its unique role, contributing to a range of facial movements.
