definitions

Question 1

What is cardiac output?

Answer 1

pumping function of the heart

Question 2

What is peripheral vascular resistance?

Answer 2

resistance of vessels to blood flow

Question 3

What is the Haldane effect?

Answer 3

de-oxygenation of the blood increasing its ability to carry carbon dioxide

Question 4

What is the Bohr effect?

Answer 4

lower pH increases oxygen unloading and increases delivery to tissues

Question 5

What is Boyle’s law?

Answer 5

at any constant temperature, the pressure exerted by a gases varies inversely with the volume of the gas

Question 6

What are proprioceptors?

Answer 6

stretch receptors in the smooth muscle of the bronchioles

Question 7

What is the Hering Breurer reflex?

Answer 7

stretch in the lung tissues activates proprioceptors to send a nerve impulse to the medulla oblongata to inhibit I neurones

Question 8

What is the partial pressure?

Answer 8

the hypothetical pressure of that gas if it alone occupied the volume of the mixture at the same temperature

Question 9

What is Dalton’s law?

Answer 9

the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual gases in the mixture

Question 10

What is vapour pressure?

Answer 10

the pressure exerted by a vapour in thermodynamic equilibrium with its condensed phases (solid or liquid)

Question 11

What is Raoult’s law?

Answer 11

in an ideal solution, the relationship between the partial vapour pressure of a component i in the vapour phase, pi, and the mole fraction of that component in solution, xi, is expressed as pi = pi.xi, where pi is the vapour pressure of the pure component