Which muscle rotates the head and flexes the neck?

Prepare for the VTCT Level 2 Facial and Skincare Test. Revise with flashcards and multiple choice questions, accompanied by insightful explanations. Ace your assessment with confidence!

Multiple Choice

Which muscle rotates the head and flexes the neck?

The muscle that rotates the head and flexes the neck is the sternocleidomastoid. It runs from the sternum and clavicle up to the mastoid process behind the ear. When both sides contract, it flexes the neck, bringing the chin toward the chest. When it contracts on one side, it rotates the head to the opposite side. This combination of actions is what makes it the primary muscle for both turning the head and bending the neck forward. The other muscles listed don’t fit these actions: the trapezius mainly moves and stabilizes the shoulder blade and can extend the neck, but it’s not the primary neck rotator and flexor; the deltoid is a shoulder muscle that abducts the arm; the nasalis moves the nostrils and has no role in neck movement.

The muscle that rotates the head and flexes the neck is the sternocleidomastoid. It runs from the sternum and clavicle up to the mastoid process behind the ear. When both sides contract, it flexes the neck, bringing the chin toward the chest. When it contracts on one side, it rotates the head to the opposite side. This combination of actions is what makes it the primary muscle for both turning the head and bending the neck forward.

The other muscles listed don’t fit these actions: the trapezius mainly moves and stabilizes the shoulder blade and can extend the neck, but it’s not the primary neck rotator and flexor; the deltoid is a shoulder muscle that abducts the arm; the nasalis moves the nostrils and has no role in neck movement.

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