Quiz 2

Question 1

Arteries

Answer 1

Carries blood AWAY from the heart

Question 2

Veins

Answer 2

Carries blood TOWARD the heart

Question 3

Capillaries

Answer 3

Blood vessel connecting arteries to the vein (where exchange happens: gas, waste products, nutrients)

Question 4

Location of heart

Answer 4

In mediastinum, between the lungs, towards left of midline, touches front part of the thoracic cavity and vertebral column.

Question 5

Healthy male heart weight

Answer 5

300g

Question 6

What does the shape of heart resemble

Answer 6

Based on the person’s thoracic cavity

Question 7

Base of the heart

Answer 7

superior part where major blood vessels are entering and exiting

Question 8

What membrane is the heart surrounded with?

Answer 8

Pericardium

Question 9

What is stuck to the surface of the heart?

Answer 9

Visceral pericardium

Question 10

What is the space between the two layers of the pericardium?

Answer 10

Pericardium space

Question 11

What makes up the Serous pericardium?

Answer 11

Parietal pericardium and visceral pericardium

Question 12

Does the fibrous pericardium stretch? Y or N

Answer 12

No

Question 13

What does the parietal pericardium and visceral pericardium secrete? And where does it go?

Answer 13

Pericardial fluid which goes into the pericardial space between the two layers.

Question 14

How much fluid does the pericardial space have?

Answer 14

10-15 mL of fluid

Question 15

What is the purpose of the pericardial fluid?

Answer 15

To lubricate and make it easier for expansion and contraction

Question 16

When is the fluid in the pericardial space a bad thing?

Answer 16

When there is too much fluid or there is fluid between the parietal pericardium and the fibrous pericardium.

Question 17

What is the aftermath of too much fluid in the heart?

Answer 17

When the fibrous pericardium is not able to stretch and the fluid cannot be compressed, the heart will get squashed.

Question 18

List bad ways that could happen in the parietal space.

Answer 18

Overproduction of pericardial fluid, pericarditis, and cardiac tamponade

Question 19

Pericarditis

Answer 19

Infection in the pericardial space that makes the fluid thicker up to a puss

Question 20

Cardiac tamponade

Answer 20

Bleeding into area due to injury to the heart

Question 21

Inter means

Answer 21

between

Question 22

Intra means

Answer 22

Inside

Question 23

What is the purpose for ventricles?

Answer 23

To pump blood

Question 24

What is the purpose of the atria?

Answer 24

Receives blood to be thrown into the ventricles so they can pump it

Question 25

Pulmonary trunk

Answer 25

Connects to the right ventricle and branch into right and left pulmonary artery one towards each lung

Question 26

Aorta

Answer 26

Largest artery in body where blood from right ventricle goes.

Question 27

Endocardium

Answer 27

Innermost layer that is an epithelium lining with a little bit of aureola connective tissue beneath it. It lines the heart and forms the valves of the heart and is continuous of the epithelium (lining of the blood vessels)

Question 28

Myocardium

Answer 28

Muscle of the heart. Made up of cardiac muscle

Question 29

Epicardium

Answer 29

Outermost layer. On the heart. Same thing as the visceral pericardium.

Question 30

Intercalated discs

Answer 30

Plates of cap junctions that connect the cardiac muscle and its nucleus.
Cardiac muscle is a functional syncytium

Question 31

Blood flow through the heart

Answer 31

RA - Tricuspid valve - RV - Pulmonary valve - Pulmonary trunk - R & L pulmonary arteries - Lungs - R & L pulmonary veins - LA - Mitral valve - LV - Aortic Valve - Aorta - Systemic circulation - SVC and IVC - RA

Question 32

Pathway of an action potential

Answer 32

SA node - RA via internodal pathway - LA via the bundle of his