Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Thorax
Introduction References & Edit History Quick Facts & Related Topics
Images
Illustrations of the thorax in a frog, human, and grasshopper are shown side by side, each labeled with anatomical features such as bones and segments unique to amphibians, mammals, and insects. Labeled anatomical illustration of the human thorax showing the rib cage, sternum, clavicle, scapula, and associated structures such as the ribs, costal cartilage, acromion, coracoid process, and xiphoid process. Illustration comparing three beetle species-a deathwatch beetle, a click beetle, and a great silver water beetle-using colored arrows to show how body parts scale differently as overall beetle size increases, demonstrating allometry in evolution.
Quizzes
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
The Human Body

Thorax: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Article title updated for style. Nov 06, 2026
Add new Web site: National Center for Biotechnology Information - Anatomy, Thorax. Aug 01, 2020
Add new Web site: National Center for Biotechnology Information - Anatomy, Thorax, Lungs. Jul 15, 2018
Thorax comparative anatomy diagram added. Oct 02, 2015
Article restructured; text providing a broad definition of a thorax added. Aug 03, 2015
Added new Web site: How Stuff Works - Healthguide - Chest X-ray. Sep 18, 2008
Added new Web site: How Stuff Works - Healthguide - Chest MRI. Sep 17, 2008
Added new Web site: How Stuff Works - Animals - Thorax. Jun 01, 2008
Added new Web site: Loyola University Chicago Stritch School of Medicine - Overview of the Thorax. Apr 10, 2008
Article added to new online database. May 27, 1999
View Changes:
Article History
Revised:
By: