Which muscle extends, rotates, and laterally flexes the neck?Multiple choice question.ScalenesLongissimus capitisLatissimus dorsiTemporalis

Break Down the Problem

1. Identify the function of each muscle listed in the options.
2. Determine which muscle is responsible for extending, rotating, and laterally flexing the neck.

Relevant Concepts

• Scalenes: These are a group of three muscles in the lateral neck that assist in neck flexion and lateral movement but do not primarily extend the neck.
• Longissimus capitis: This muscle is part of the erector spinae group and is primarily responsible for extending and rotating the head and neck.
• Latissimus dorsi: This muscle is primarily involved in actions of the shoulder, not the neck.
• Temporalis: This muscle primarily functions in mastication and is located on the side of the head.

Analysis and Detail

• Analyzing the Longissimus capitis: It extends the head, assists in rotation, and contributes to lateral flexion of the neck.
• Other options either do not provide the necessary functions or operate in different areas.

Verify and Summarize

After analyzing the functions of each muscle, the Longissimus capitis is the only muscle listed that meets the criteria of extending, rotating, and laterally flexing the neck.

Final Answer

Longissimus capitis is the muscle that extends, rotates, and laterally flexes the neck.