Anatomy & Physiology Musculoskeletal #35

Question

Which type of muscle is classified as an axial skeleton muscle?

Answers

  1. Thoracic muscles
    • Rationale:

      Thoracic muscles, which are the muscles responsible for respiration, are classified as axial skeleton muscles.

  2. Upper limb muscles
    • Rationale:

      The upper limb muscles are appendicular, not axial, skeleton muscles.

  3. Lower limb muscles
    • Rationale:

      The lower limb muscles are appendicular, not axial, skeleton muscles.

  4. Shoulder girdle muscles
    • Rationale:

      Shoulder girdle muscles are appendicular, not axial, skeleton muscles.

Overview

Muscles, which are a group of specialized tissues that contract together to produce a force, are classified as either appendicular, or axial skeleton muscles.

Explanation

Learning Outcomes

Muscles of the axial skeleton include the thoracic muscles that are responsible for respiration. There are several groups of thoracic muscles, including the diaphragm, the intercostal muscles, the subcostal muscles, and the transversus thoracis muscle. Other axial skeletal muscles include those of the head and neck in addition to those that move the vertebral column.

Test Taking Tip

Consider the location of each answer choice to answer this question correctly.

Video Rationale