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Flashcards in INTRO Deck (14)
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1

Physiology

the study of the physical and chemical processes that take place in living organisms during the performance of life functions.

2

Herophilus

vivisected criminals
brain is center of nervous system
nerves
blood in arteries and veins
pulse

3

anatomy

structure, observation

4

physiology

function, experimental

5

10 fundamental characteristics

movement, responsiveness, growth, reproduction, respiration, digestion, absorption, circulation, assimilation, excretion

6

to maintain 10 traits we need these 5

water, food/nutrients, oxygen, heat, pressure

7

Claude Bernard

organisms never completely rest. HOMEOSTASIS

8

Homeostasis

state of equilibrium to maintain the body in its normal working range
central theme
90% of bodies energy goes to this

9

negative feedback

thermastat
includes sensors, integrators, and effectors

10

sensors

measures and knows when constant or change occur. they send info to the integrator

11

integrator

decision point. sums up sensory info and makes decisions

12

effector

target whose activity is altered in order to compensate to bring parameter back into its normal range

13

hypothalamus

master regulator

14

positive feedback

rare. usually leads to further instability. it must have a way to shut off.