laws of physiology

Question 1

bell magende

Answer 1

anterior spinal roots are motor, posterior are sensory

Question 2

boyle

Answer 2

at constant temp, gas volume is inverse to pressure

Question 3

charles

Answer 3

at constant pressure, gas volume is proportional to absolute temp

Question 4

chronaxie

Answer 4

minimum interval of time necessary to electrically stimulate a muscle or nerve fiber using twice the minimum current to elicit threshold response

Question 5

goldman

Answer 5

membrane potential on the inside of a membrane when 2 univalent positive ions, Na+ and K+ and one univalent negative ion, chloride are involved

Question 6

Henri

Answer 6

gas solubility in a liquid is proportional to gas pressure

Question 7

hering breuer

Answer 7

limits respiratory excursion via the vagus nerve

Question 8

LaPlace’s Law for arteries

Answer 8

the tension in an artery will be proportional to the radius of the vessel

Question 9

LaPlace’s Law for the heart

Answer 9

ventricular pressure depends on muscular tension, size, and shape of the heart

Question 10

Nernst

Answer 10

potential level across a membrane exactly opposes net diffusion of particles through the membrane

Question 11

Rheobase

Answer 11

minimum electrical current of infinite duration to elicit a threshold response

Question 12

starlings law

Answer 12

cardiac output is equal to venous return. (if venous return > than cardiac out =CHF)

Question 13

Haldane effect

Answer 13

hemoglobin becomes more acidic binding with O2. causes CO2 and H+ protons to be expelled into the alveoli. Part of bohr effect

Question 14

Bohr effect

Answer 14

is what happens, haldane is how it happens.
at lung: Hemoglobin binds 4 O2. releases H+, CO2, DPG, decrease temp, shift to the left=shift to the Lung
at tissues: hemoglobin releases O2. binds H+, CO2, DPG, increase temp.