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Questions and Answers
What muscle is the arrow labelled A pointing to?
Which area is the arrow labelled B pointing to?
Which muscle is primarily responsible for chewing and is pointed to by the arrow labelled A?
Which anatomical feature associated with the jaw is the arrow labelled B indicating?
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Which muscle, used in mastication, is labelled A in the diagram?
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Which muscle is indicated by 'A'?
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Where does the action 'lateral flexion and rotation of the head to the same side' occur?
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Which muscle is labeled as number 5?
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Which muscle is responsible for aiding in swallowing by elevating the hyoid bone?
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Which muscle is located closest to the anterior scalene?
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Which muscle is labeled A in the image?
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Which function is primarily performed by the muscle labeled A?
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Which muscle is labeled B in the image?
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What is the primary function of the muscle labeled B?
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Which muscle is labeled as 'A' in the image?
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Where is the sternocleidomastoid muscle located?
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Which muscle is labeled as 'B' in the image?
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What is the primary function of the muscle labeled 'A'?
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Which muscle assists in shrugging the shoulders?
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Which muscle is prominently involved in facial expressions but is not labeled in the image?
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Which action is performed by the muscle labeled 'A'?
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What is the action of the muscle labeled 'B'?
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Which of the following is NOT an action performed by the muscles in the neck region?
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Which muscle action is associated with the movement of the scapula?
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Which action focuses on the head's movement?
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What is the action of muscle 'A'?
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Which muscle is indicated by 'B'?
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Which muscle depresses the mandible?
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Which of the following actions is NOT performed by the sternohyoid muscle?
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Which muscle flexes the neck?
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Study Notes
Muscle Anatomy of the Neck
- The anterior scalene muscle is labeled as 1.
- The anterior belly of the digastric muscle is labeled as 2.
- The thyrohyoid muscle is labeled as 3.
- The superior belly of the omohyoid muscle is labeled as 4.
- The sternocleidomastoid muscle is labeled as 5.
- The sternohyoid muscle is labeled as 6.
Muscle Identification
- The muscle indicated by "A" is the anterior belly of the digastric.
- The action of the muscle indicated by "A" is to elevate the hyoid bone during deglutition.
- The muscle indicated by "B" is the sternohyoid.
- The action of the muscle indicated by "B" is lateral flexion and rotation of the head to the same side.
Muscle Actions
- Elevates the lateral commissure of the lips (action of the anterior belly of the digastric).
- Laterally flexes and rotates the head to the same side (action of the sternohyoid).
- Elevates the hyoid bone (action of the anterior belly of the digastric).
- Depresses the hyoid bone and larynx (action of the sternohyoid).
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Description
Identify the muscles of the neck and their actions. This quiz covers the anterior scalene, digastric, thyrohyoid, and more.
