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cells
human anatomy
20
Biology
Undergraduate 1
09/08/2010

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Term
cells are..
Definition
1.) produced by the division of other cells
2.) structural building blocks of the body
Term
gametes
Definition
type of germ or reproductive cell
male=sperm female=oocyte
Term
somatic cells
Definition
all the other cells in the body (soma=body)
Term
in an adult human there are
Definition

75 trillion cells

1cm3=1 billion cells

200 types of cells

Term
squamous
Definition
thin, flat (skin)
Term
cuboidal
Definition
cube-shaped (liver, ducts)
Term
columnar
Definition
taller than wide (intestines)
Term
polygonal
Definition
irregular, 5 sides
Term
stellate
Definition
star-like shape
Term
spheroid
Definition
oval (white blood cells)
Term
discoid
Definition
disc shaped/ frisby (red blood cells)
Term
fusiform
Definition
spindle shaped (thick in the middle) smooth muscle
Term
fibrous
Definition
THREAD LIKE FIBERS (SKELETON MUSCLE)
Term
apical surface
Definition
closer to surface
Term
basal surface
Definition
closer to the base
Term
endocytosis
Definition
brings mater into the cell
Term
exocytosis
Definition
releases matter from cell
Term
cytosol
Definition
intracellular fluid
contains ions, proteins and stored carbohydrates
Term
lysosomes
Definition
digestive enzymes w/ in a membrane
Term
pemphigus vulgaris
Definition
an autoimmune skin disorder of desmosomes
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