Lec 13 - SV Regulation 1

Question 1

cardiac output formula

Answer 1

HR x SV

Question 2

M1 receptor mediates blank nervous system via blank

Answer 2

parasympathetic, ach

Question 3

Beta1 receptor mediates blank nervous system via blank

Answer 3

sympathetic, norepinephrine

Question 4

active tension generator of heart

Answer 4

sarcomere

Question 5

more calcium increases blank

Answer 5

contractility

Question 6

in the heart, increased cytosolic calcium leads to blank

Answer 6

systole

Question 7

active tension requires blank of sarcomeres

Answer 7

cross bridging

Question 8

small calcium increases in the vicinity of the SR leads to blank release from the SR ryanodine channels

Answer 8

larger (activator calcium)

Question 9

contraction shorter in length is called blank

Answer 9

positive lusitropic

Question 10

phosphorylating calcium channels and ryanodine channels is blank

Answer 10

positive inotropic

Question 11

reduced calcium extrusion via a cardiac glycoside will lead to blank

Answer 11

increased intracellular calcium and thus more contractility