Chapter 9- Heart

Question 1

Pericardium

Answer 1

The tough protective membrane surrounding the outside of the heart

Question 2

What is Diastole and what valves are closed during it?

Answer 2

Period of relaxation in heart beat cycle

Valves closed: semi lunar valves

Question 3

What is systole and valves are closed during it?

Answer 3

Period of contraction in heartbeat cycle

Valves closed: tricuspid, bicuspid

Question 4

What is the temperature of blood?

Answer 4

About 38 degrees Celsius

Slightly higher than body temp

Question 5

What is the endothelium

Answer 5

Outer structure of blood vessels

Question 6

What is vasoconstriction and vasodilation

Answer 6

Occurs when muscles contract and relax

Question 7

What type of blood do arteries carry?

Answer 7

Oxygen rich blood

Except pulmonary artery (CO2 rich)

Question 8

What type of blood do veins carry?

Answer 8

Carbon Dioxide rich blood

Except pulmonary vein (O2 rich)

Question 9

What are capillaries?

Answer 9

Connect smallest arteries to the smallest veins

Question 10

What is pulmonary circulation?

Answer 10

Carries blood to and from the heart and lungs

Question 11

What is systemic circulation?

Answer 11

Moved blood between heart and rest of body

Question 11

What controls the blood flow?

Answer 11

One way Heart valves

Question 12

What is special about a fish, amphibian, and reptiles septums?

Answer 12

Their septum isn’t complete

Question 13

What creatures have complete septums?

Answer 13

Mammals and birds

Question 14

What makes lub noise in heart beat?

Answer 14

Contraction of atrium (SA node sending signal)

Question 15

What makes dub noise is heart beat?

Answer 15

Contraction of ventricles (AV node shoots)

Question 16

Trace the blood from the superior and inferior vena cava veins through the circulatory system back to them

Answer 16

SVC/IVC to Right atrium to tricuspid valve to right ventricle to PSLV to pulmonary artery to lungs to pulmonary veins to Left atrium to bicuspid valve to ASLV to Aorta artery to body to SVC/IVC

Question 17

Describe blood in right side of heart

Answer 17

Rich in carbon dioxide and goes to lungs

Question 18

Describe blood in left side of heart

Answer 18

Oxygen rich blood and goes to rest of body

Question 19

Trace the blood from the superior and inferior vena cava veins through the circulatory system back to them

Answer 19

SVC/IVC to Right atrium to tricuspid valve to right ventricle to PSLV to pulmonary artery to lungs to pulmonary veins to Left atrium to bicuspid valve to ASLV to Aorta artery to body to SVC/IVC

Question 20

Describe blood in right side of heart

Answer 20

Rich in carbon dioxide and goes to lungs

Question 21

Describe blood in left side of heart

Answer 21

Oxygen rich blood and goes to rest of body

Question 22

What causes heart attack?

Answer 22

Plaque build up in coronary arteries

Question 23

What are the 3 ways to repair a vein?

Answer 23

1. Antioplasty
2. Stents
3. Bypass

Question 24

What is hemoglobin?

Answer 24

A pigment in red blood cells that increases amount of oxygen blood can carry

Question 25

What is the cymphatic system

Answer 25

Returns excess fluid from intercelluar spaces to blood

Question 26

How are the five aortic arches the same as the human heart?

Answer 26

They pump blood throughout the earthworm like our heart does

Question 27

What is the difference between coronary circulation and renal circulation?

Answer 27

Coronary supplies blood to the heart while renal carries blood to and from the kidneys