Biology____

Biology review helpful

Ronnie James P. Casiño

Terms

Definitions

3 parts of a neuron

axon
dendrites
soma (cell body)

3 types of muscle tissue

skeletal – attached to bone
smooth – surrounds hollow tubes and cavities
cardiac – only in the heart, involuntary control

4 levels of organization

cells
tissue
organ
system (organ system)
organism

4 phases of nutrient consumption

ingestion
digestion
absorption
elimination

4 types of glial cells

astrocytes – provides metabolic support for neurons
microglia – dispose of cellular debris produced by dying cells
oliodengrocytes – mylin producing glial cells in the CNS
Schwann cells – mylin producing glial cells in the PNS

4 types of heat exchange

conduction – loss or gain of heat through direct contact
convection – wind cooling body
evaporation – evaporation of water from the body
radiation – emission of electromagnetic waves

4 types tissue

muscle
nervous
epithelial
connective

8 essential amino acids

isoleucine
leucine
lysine
methionine
phenylalanine
threonine
tryptophan

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