Answered: These are 2 organs (dried specimens)…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question

These are 2 organs (dried specimens) from the axial part of the skeletal system. Identify the 2 organs. Explain how the similarities in their structures (their common features) are related to the similarities in their functions and how the differences in their structures are related to the differences in their functions.

Expert Solution

Step 1

Cervical discs run to have an elliptical cross-sectional shape, thoracic discs are more circular in structure and lumbar discs tends to have an elliptical cross-section which is flattened or re-entrant posteriorly.

In cervical spine, there are first seven cervical vertebrae present. They are the smaller and lighter vertebrae of our neck. Thoracic spine: The next 12 vertebrae that runs from our neck down our mid-back. Each forms a joint with the 12 pairs of ribs.