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BIO 140 Human Biology I - Questions and Solutions

Divisions of the Skeletal System - Solutions

Review Questions

1. Which of the following is part of the axial skeleton?

  1. shoulder bones
  2. thigh bone
  3. foot bones
  4. vertebral column

2. Which of the following is a function of the axial skeleton?

  1. allows for movement of the wrist and hand
  2. protects nerves and blood vessels at the elbow
  3. supports trunk of body
  4. allows for movements of the ankle and foot

3. The axial skeleton ________.

  1. consists of 126 bones
  2. forms the vertical axis of the body
  3. includes all bones of the body trunk and limbs
  4. includes only the bones of the lower limbs

 

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Critical Thinking Questions

1. Define the two divisions of the skeleton.

Solution: The axial skeleton forms the vertical axis of the body and includes the bones of the head, neck, back, and chest of the body. It consists of 80 bones that include the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of 126 bones and includes all bones of the upper and lower limbs.

2. Discuss the functions of the axial skeleton.

Solution: The axial skeleton supports the head, neck, back, and chest of the body and allows for movements of these body regions. It also gives bony protections for the brain, spinal cord, heart, and lungs; stores fat and minerals; and houses the blood-cell producing tissue.

 

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OpenStax, Divisions of the Skeletal System. OpenStax CNX. Jun 4, 2013 http://cnx.org/contents/3d4e4991-1e5b-4700-9c46-1a9ab4143bc2@3. © Jun 4, 2013 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License 3.0 license.