click below
click below
Normal Size Small Size show me how
SCI221 Physiology
1st half
Question | Answer |
---|---|
Homeostasis | Homeostasis is used to describe the relatively constant states maintained by the body—internal environment around body cells remains constan |
Feedback loop | Communication networks for maintaining or restoring homeostasis by self-regulation through feedback |
Negative feedback loop | Communication networks for maintaining or restoring homeostasis by self-regulation through feedback |
Set point | normal value or range for homeostasis |
intracellular control | regulation within cells |
intrinsic control | (autoregulation) regulation within tissue and organs |
extrinsic control | regulation from organ to organ |
atomic number | number of protons in nucleus |
mass number | protons + neutrons |
isotopes | same number of protons but different number of neutrons |
molecule | two or more atoms covalently joined |