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soma (cell body)
contains nucleus and organelles. electrical and chemical reactions take place in cell body.
8 essential amino acids
(what happens to) proteins?
converted to amino acids. Excess is converted and stored as fat by the liver
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
(what is the relationship between) BMR and body mas
Generally, larger animals have lower BMR, such as humans and elephants whereas smaller animals such as mice and rats have higher BMR's.
protein harmone that stimulates glycogenolysis, gluconeogenesis process and synthesis of ketone's in the liver
produced in adipose tissue and acts on hypothalamus to reduce appetite and increase metabolic rate
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
countercurrent heat exchange
heat is transferred from the arteries to nearby veins, thereby reducing heat loss to the water
when a neuron has a net positive charge on the outside and a net negative charge on the inside
3 types of muscle tissue
skeletal - attached to bone
smooth - surrounds hollow tubes and cavities
cardiac - only in the heart, involuntary control
(3 general purposes to an) electrical signal (from the nervous system)
initiate new electrical signals
stimulate muscle to contract
stimulate glands to release chemicals
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