Chapter 16 : CVS Regulation

Question 1

SA node stands for

Answer 1

sinoatrial node

Question 2

SA node is also known as

Answer 2

the pacemacker

Question 3

CVS control center is located where?

Answer 3

the medulla in the brainstem

Question 4

the SA node is found where

Answer 4

right atria

Question 5

both the SA & AV nodes are regulated by what

Answer 5

CVS control center

Question 6

the release of ___________ leads to ___________

Answer 6

1st blank: catecholamine
2nd blank: tachycardia

Question 7

the release of ________________ leads to ____________

Answer 7

1st blank: acetylcholine
2nd blank: bradycardia

Question 8

tachycardia

Answer 8

HR greater than 100 bpm

Question 9

bradycardia

Answer 9

HR less than 60 bpm

Question 10

average person HR

Answer 10

60-80 bpm

Question 11

when the sympathetic nervous system is engaged what happens

Answer 11

increased HR
increased contractility
increased vasodilation of arterioles of skeletal muscle
increased vasoconstriction of visceral arterioles

Question 12

when parasympathetic nervous system is engaged what happens

Answer 12

decreased HR
decreased contractility
decreased vasodilation of arterioles of skeletal muscle
decreased vasoconstriction of the visceral arterioles

Question 13

depolarization

Answer 13

contraction
membrane potential becomes more positive
influx of sodium

Question 14

repolarization

Answer 14

relaxation
membrane potential becomes more negative
efflux of potassium

Question 15

ECG measures ?

Answer 15

hearts electrical activity

Question 16

P Wave measures?

Answer 16

atrial depolarization

Question 17

QRS Complex measures

Answer 17

ventricle depolarization

Question 18

T Wave measures?

Answer 18

ventricular repolarization

Question 19

which electrical activity represents a person’s pulse?

Answer 19

QRS complex

Question 20

sympathetic neurons cause

Answer 20

vasodilation and vasoconstriction

Question 21

blood does what

Answer 21

transports, regulates, protects

Question 22

blood transports through

Answer 22

cells, lungs, kidneys, lungs, liver

Question 23

blood regulates through

Answer 23

body temp, pH buffers, hydration

Question 24

where does the water come from within our blood?

Answer 24

our plasma

Question 25

blood protects through

Answer 25

blood loss/fluid loss
WBCS

Question 26

vitamin essential for clotting

Answer 26

vitamin K

Question 27

alcohol has a negative effect on this vitamins function

Answer 27

Vitamin B1

Question 28

what is blood made up of

Answer 28

two portions:

formed elements (blood cells, 45% of blood volume) = Hematocrit

plasma (liquid containing dissolved substances, 55% of blood volume)

Question 29

Erythrocytes =

Answer 29

RBCs

Question 30

Leucocytes =

Answer 30

WBCs

Question 31

Thrombocytes =

Answer 31

platelets

Question 32

red colour in RBCs is due to

Answer 32

hemoglobin

Question 33

albumins, 55%

Answer 33

transport fatty acids, hormones

smallest proteins

Question 34

globulins, 38%

Answer 34

include immunoglobins
transport proteins, bind w/ ions, hormones, etc

Question 35

fibrinogen, 7%

Answer 35

partipates in clotting
forms fibrin
largest protein

Question 36

anemia

Answer 36

low RBC count

Question 37

blood doping

Answer 37

non-pharmacological approach to enhance performance

Question 38

red blood cell reinfusion is known as

Answer 38

blood doping

Question 39

eythroprotein (EPO)

Answer 39

hormone produced by kidneys

Question 40

Epoetin (Exo EPO)

Answer 40

synthetic version

Question 41

why should you not donate blood if you are ill

Answer 41

increased WBCs