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32 terms

unit 6 biology

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thermoregulation
regulating or temperature in a narrow limit
endothermic
organisms that are warmed by heat their own body generates
ectothermic
an organisms body is warmed by external source (sun)
conduction
direct transfer of heat between objects in direct contact
convection
transfer of heat by the movement of air or liquid pas a surface, typically a loss
radiation
a mission of electromagnetic waves. Objects are not touching
evaporation
it is a loss of heat from the surface of a liquid in the form of gas molecules
osmoregulations
animals balance water and solute level, it is regulating water
osmoconformers
mostly marine invertebrates, their body fluids are the same solutes as the fluid they live in
osmoregulators
to dispose of excess water and conserve solutes, produce urine, actively monitor and regulate the amount of water in their body
nephrons
sit right on the junction between the cortex and pyramids in the kidney. it filters and refines for the kidneys
dialysis
helps get rid of the toxic waster build up in your blood when you kidneys fail
hormone
is a substance that acts as a chemical signal
Amino acid derive
longs chains of peptide protein, water soleable, how hormone gets into your cells
steroid hormone
form from cholesterol, lipid sliable
thyroid
basal metabolic rate, blood calcium level, strictly endocrine
parathyroid
helps regulate blood calcium level, strictly endocrine
pancreas
blood sugar levels, and digestive system enzymes, dual roles
ovaries/testes
sex hormones, make gametes, dual rules
adrenal glands
deal with stress, absorb sodium, metabolic rates, "Fight of Flight", dual roles
thymus
hormone for T cell development, are for the T cell development, dual roles
hypothalamus
hormones to directly control your pituary gland, regulate hunger/thirst, and regulate visceral activities, dual roles
posterior
it is a direct extension from the hypothalamus
anterior
wraps itself around part of the posterior
oxtocin
contraction of uitary muscle, release of milk after child birth
ADH
cause kidneys to keep water
TSH
makes thyroid sucrete its own hormones
GH
body grow and develop
FSH & LH
goes to the gonads
ACTH
cause adrenal glands to sucrete their own hormones
MSH
goes to the epidermis of your skin, makes your skin color
PRL
milk formation