Blood Vessles Hemodynamixs And Homeostasis

Question 1

How is it determined if a person has tachycardia or bracycardia

Answer 1

Rapid HB over 100 B/m
Under 50 B/m

Question 2

What is the sequence of flow of an electrical impulse in the conduction system?

Answer 2

SA (sinoatrial) node
AV (atrioventricular) node
AV bundles (Bundles of his)
Purkinje fibers

Question 3

Name the 3 layers of the blood vessels

Answer 3

Tunica externa
Tunica media
Tunica interna

Question 4

Which blood vessels contain the largest amount of circulating blood?

Answer 4

Veins

Question 5

What does each number of Blood pressure represent

Answer 5

Top number: systolic pressure (contraction)
Bottom number: diastolic pressure ( relaxation)

Question 6

What is the only artery that carries deoxygenated blood?

Answer 6

Pulmonary artery

Question 7

What is the only vein that carries oxygen?

Answer 7

Pulmonary vein

Question 8

What are the smallest blood vessels?

Answer 8

Capillaries

Question 9

Where does exchange of substances between blood and interstitial fluid happen?

Answer 9

Capillaries

Question 10

What are the two types of arteries

Answer 10

Elastic and muscular arteries

Question 11

What is the purpose of elastic arteries?

Answer 11

Help propel blood onward while ventricles of the heart relax

Question 12

What is the difference between muscular and elastic arteries?

Answer 12

Muscular arteries tunica media has more smooth mm than elastic

Question 13

What arteries are aka distributing arteries?

Answer 13

Muscular arteries

Question 14

This type of artery is Capable of greater vasoconstriction and vasodilation to adjust the rate of blood flow

Answer 14

Muscular artery

Question 15

What is the key role for arterioles?

Answer 15

regulating resistance, because of this they are known as resistance vessels

Question 16

What is the major difference between arteries and veins?

Answer 16

Presence of valves in veins

Question 17

What is the open space in arteries called?

Answer 17

Lumen

Question 18

The left side of the heart pumps blood through an estimated 100 000km of blood vessels

Answer 18

True

Question 19

What is hemodynamics?

Answer 19

the force involved in circulating blood throughout the body

Question 20

Why don’t artery’s require valves?

Answer 20

pressure from the heart is so strong that blood is only able to flow in one direction.

Question 21

What blood vessel is know as the exchange vessel?

Answer 21

Capillaries

Question 22

What is the outer most layer in blood vessels?

Answer 22

Tunica externa

Question 23

Which wall of blood vessel is made up of 2 layers and one layer regulates the diameter of the lumen, what layer is this?

Answer 23

Tunica media : smooth muscle layer

Question 24

Which wall of a blood vessel consists of the smooth muscle layer and external elastic lamina

Answer 24

Tunica media

Question 25

Which wall of the blood vessels is made of of the 3 layers? Name them from inner mist layer to outermost part

Answer 25

Tunica interna ; endothelium, basement membrane, internal elastic lamina

Question 26

The right side of the heart pumps blood through the lungs, enabling blood to pick up oxygen and unloading CO2.

Answer 26

True

Question 27

What is thrombosis?

Answer 27

when blood clots too easily and forms a clot within an undamaged blood vessel

Question 28

What are the 2 pathways of blood clotting?

Answer 28

Extrinsic pathway and intrinsic pathway

Question 29

What is the purpose for T and B cells

Answer 29

help combat infections and provide protection against some diseases

Question 30

What is the life span of platelets? How are they removed?

Answer 30

5-9 days; removed by spleen and livers

Question 31

This is a replacement of cancerous or abnormal red bone marrow with healthy red bone marrow in order to establish normal blood cell counts

Answer 31

bone marrow transplant

Question 32

What is the purpose for NK Cells?

Answer 32

NK cells attack a wide variety of infectious microbes and certain spontaneously arising tumor cells.