heart stuff

Question 1

blood flow velocity

Answer 1

variable

slows when entering capillaries

artieries, arterioles and capillaries experience a reductino in blood pressure

Question 2

blood piagments

Answer 2

haemoglobin, haemocyanin, haemerythrin, chlorocruorins

Question 3

what are the functions of bloood pigmants

Answer 3

increase the oxygen carrying capacity of blood

buffer blood

transpirt co2

Question 4

what is haemoglobin contained within

Answer 4

erythrocytes

Question 5

what are erythrocytes

Answer 5

bi concave discs

made in red bone marrow

obtain energy via anaerobic metabolism

Question 6

at high 02 partial pressure

Answer 6

Hb binds to o2

Question 7

at low partial pressire

Answer 7

02 is offloaded

Question 8

what is the partial pressure like in the capillaries

Answer 8

low

Question 9

what is affinity for oxygem influenced by?

Answer 9

termperature, pc02, pH, 2,3-DPG levels

Question 10

when co2 diffuses into the blood there are 3 processess that can occur

Answer 10

stay as dissolved co2 in plasma, taken into the red blood cells resulting in offloading of 02

Question 11

chloride shift

Answer 11

capillary beds, Hc03 in rbc is exchanged for cl in plasma

oincreasees affinity, buffer