Anatomy and Related Anatomical Terms

(the structure of organisms from the smallest components of cells to the biggest organs and their relationships to other organs especially of the human body)

Diseases affect the anatomy and changes in the anatomical structure can cause diseases.

antagonistic muscles
A pair of muscles allowing coordinated movements of the skeletal joints.

The individual components of antagonistic pairs can be classified into extensors (muscles that straighten a limb) and flexors (muscles that bend a limb).

antibody
A protein molecule produced in the blood by lymphocytes in response to the presence of foreign or invading substances (antigens); such substances include the proteins carried on the surfaces of infecting microorganisms.
antidiuretic hormone, ADH
A pituitary hormone that prevents excessive fluid loss.

It is part of the system maintaining a correct salt and water balance in vertebrates which includes any animal (including humans) with a segmented spinal column and a well-developed brain; for example, a mammal, a bird, a reptile, an amphibian, or a fish.

antigen
Any substance that causes the production of antibodies by the body's immune system.
anus
The opening at the end of the alimentary canal that allows undigested food and other waste materials to pass out of the body, in the form of feces.
appendix
A short, blind-ended tube attached to the cecum or caecum.

The first portion of the large bowel, situated in the lower right quadrant of the abdomen.

The cecum receives fecal material from the small bowel (ileum) which opens into it and the appendix, as stated above, is attached to the cecum.

The word cecum comes from Latin caecus, "blind". This refers to the fact that the bottom of the cecum is a blind pouch (a cul de sac) leading nowhere.

applied anatomy
The practical application of anatomic knowledge to the diagnosis and treatment (including surgical techniques) in clinical situations.
aqueous humor
The watery fluid found in the chamber between the cornea and lens of the vertebrate eye (any animal that possesses a backbone and eyes).

Similar to blood plasma in composition, it is constantly being renewed.

artery
A vessel that carries blood from the heart to the rest of the body.
artificial anatomy
The study of structures and their relationships by means of models or other manufactured articles.
artistic anatomy
The study of human anatomy by artists i order to improve their perceptions and skill in representing the human body.
assimilation
A process by which absorbed food molecules, circulating in the blood, pass into the cells and are used for growth, tissue repair, and other metabolic activities.

The actual destiny of each food molecule depends not only on its type, but also on the body requirements at the time when it is moving around.

atrium
Either of the two upper chambers of the heart.
auditory canal
The tube leading from the outer ear opening to the eardrum.
autonomic nervous system
Part of the nervous system that controls involuntary functions, including the heart rate and the activity of the intestines.

Here is more information about Anatomy, Its Origins and Development.

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