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Medical Terminology Chapter 2

All terms besides roots.
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Cell
Basic unit of life
Cell membrane
forms the boundary of the cell
cytoplasm
gel-like fluid inside the cell (outside the nucleus of cell)
Nucleus
largest structure within the cell, usually spherical and centrally located. Contains chromosomes for cellular reproduction.
Chromosomes
located in the nucleus of the cell. 46 in normal cells except sex cells have 23.
Genes
regions within chromosomes, determine hereditary characteristics
DNA
comprises each gene; genetic material that regulates the activities.
Tissue
group of similar cells that perform a specific function
Muscle tissue
produces movements (contract)
Nervous tissue
conduct impulses controlling and coordinating body activities.
Connective tissue
Connects, supports, penetrates, and encases various body structures. Adipose, osseous, and blood.
Epithelial tissue
major covering of the external surface of the body; membranes major tissue in glands
Organ
Two or more kinds of tissue that together perform special body functions.
System
A group of organs that work together to perform complex functions.
Integumentary System
Composed of skin, nails, and glands. Forms a protective covering for the body, regulates body temperature, and makes Vitamin D.
Respiratory System
Composed of nose, pharynx(throat), larynx(voice box), trachea (windpipe), bronchial tubes and lungs. Performs exchange of oxygen and carbon dioxide within the body.
Urinary System
Composed of kidneys, ureters, bladder, and urethra. Removes waste material(urine) from body, regulates fluid volume, maintains electrolytes.
Reproductive System
Composed of ovaries, uterine tubes, uterus, vagina, and male system is composed of testes, urethra, penis, prostate gland. Responsible for hereditary and reproductive.
Cardiovascular System
composed of heart and blood vessels pumps and transports blood throughout the body
Lymphatic System
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