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A&P Chapter 1
Terms in this set (16)
study of structure
The study of body function
Levels of Structural Organization
chemical, cellular, tissue, organ, organ system, organismal
Forms the external body covering, and
protects deeper tissues from injury.
Synthesizes vitamin D, and houses
cutaneous (pain, pressure, etc.)
receptors, and sweat and oil glands.
Protects and supports body organs,
and provides a framework the muscles
use to cause movement. Blood cells
are formed within bones. Bones store minerals.
Allows manipulation of the environment, locomotion, and facial expression. Maintains posture, and produces heat.
As the fast-acting control system of
the body, it responds to internal and
external changes by activating
appropriate muscles and glands.
Glands secrete hormones that regulate
processes such as growth, reproduction,
and nutrient use (metabolism) by body cells.
Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc. The heart pumps blood.
Picks up fluid leaked from blood vessels
and returns it to blood. Disposes of debris
in the lymphatic stream. Houses white
blood cells (lymphocytes) involved in
immunity. The immune response mounts
the attack against foreign substances
within the body
Keeps blood constantly supplied with
oxygen and removes carbon dioxide.
The gaseous exchanges occur through
the walls of the air sacs of the lungs.
Breaks down food into absorbable
units that enter the blood for
distribution to body cells. Indigestible
foodstuffs are eliminated as feces.
Eliminates nitrogenous wastes from the
body. Regulates water, electrolyte and
acid-base balance of the blood.
Overall function is production of offspring. Testes produce sperm and male sex
hormone, and male ducts and glands aid in delivery of sperm to the female
reproductive tract. Ovaries produce eggs and female sex hormones. The remaining
female structures serve as sites for fertilization and development of the fetus.
Mammary glands of female breasts produce milk to nourish the newborn.
Necessary Life Functions
1. Maintaining boundaries
nutrients, oxygen, water, normal body temperature, appropriate atmospheric pressure
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