Rotary joint

Definition
noun, plural: rotary joints
A synovial joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, permitting rotating motion.
Supplement
Example is the joint in human head on the neck where rotating motion is possible. Other examples are those found in the forearms, knees and other parts of the skeletal system that are capable of rotating.
Synonyms:

trochoid joint
articulatio trochoidea
helicoid ginglymus
lateral ginglymus
trochoid articulation
trochoid joint

Passive and Active Types of Immunity

Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

genes controlling growth and development

Control of Growth & Development

Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

New Zealand’s Unique Geographical History

Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

Ecosystem Succession

If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

Kidneys and Regulation of Water and Inorganic Ions

The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..