What is the function of the Thoracic spine?

• A. Protection of vital organs and respiratory function
• B. Supports the head
• C. Allows for finger extension
• D. Secretes hormones

Answer: (A)

The thoracic spine forms the rib cage that protects the heart and lungs and supports breathing. The twelve thoracic vertebrae connect to the ribs, creating a protective framework around the thoracic cavity. This cage not only shields vital organs but also provides sturdy attachments for muscles involved in respiration, allowing the chest to expand and contract during inhalation and exhalation.

That’s why protection of vital organs and respiratory function is the best description. The other options don’t fit: protecting the head relates to the cervical spine and skull; finger extension involves the hand and forearm muscles and nerves; hormones are produced by endocrine glands, not the spine.