Heart pt. 1

Question 1

SVC

Answer 1

carries deoxygenated blood from the upper body back to the heart

Question 2

What are the two types of chambers in the heart responsible for receiving blood?

Answer 2

Right and Left atria

Question 3

What are the two types of chambers in the heart responsible for pumping blood?

Answer 3

Right and Left ventricles

Question 4

What separates the right and left atria?

Answer 4

Interatrial septum

Question 5

What separates the right and left ventricles?

Answer 5

Interventricular septum

Question 6

What type of circulation carries deoxygenated blood to the lungs?

Answer 6

Pulmonary circulation

Question 7

What type of circulation carries oxygenated blood to the body?

Answer 7

Systemic circulation

Question 8

What is the anatomical location of the heart called?

Answer 8

Mediastinum

Question 9

What is the outer layer of the heart called?

Answer 9

Pericardium

Question 10

What are the two layers of the pericardium?

Answer 10

• Visceral
• Parietal (Epicardium)

Question 11

What is the cavity called that contains fluid around the heart?

Answer 11

Pericardial cavity

Question 12

What are the three layers of the heart wall?

Answer 12

• Myocardium
• Endocardium
• Epicardium

Question 13

What is the primary function of the coronary circulation?

Answer 13

Supply blood to the heart muscle

Question 14

What are the two main coronary arteries?

Answer 14

• Left coronary artery
• Right coronary artery

Question 15

What condition is characterized by chest pain due to reduced blood flow to the heart?

Answer 15

Angina pectoris

Question 16

What is a myocardial infarction often caused by?

Answer 16

Plaques rupture and a clot forms in coronary arteries

Question 17

What do the superior and inferior vena cavae do?

Answer 17

Bring deoxygenated blood to the right atrium

Question 18

What are the four pulmonary veins responsible for?

Answer 18

Bringing oxygenated blood to the left atrium

Question 19

What are the two types of atrioventricular valves?

Answer 19

• Tricuspid (Right AV)
• Mitral (Bicuspid, Left AV)

Question 20

What are chordae tendinae?

Answer 20

Fibrous cords that connect the atrioventricular valves to the papillary muscles

Question 21

What is the role of semilunar valves?

Answer 21

Prevent backflow of blood into the ventricles

Question 22

What is the function of cardiac muscle cells?

Answer 22

Contract and pump blood

Question 23

What type of junctions are found in cardiac muscle cells that allow for synchronized contraction?

Answer 23

Intercalated discs

Question 24

What is the primary pacemaker of the heart?

Answer 24

Sinoatrial node

Question 25

Fill in the blank: The sequence of excitation in the heart includes the SA node, AV node, AV bundle, R and L bundle branches, and _______.

Answer 25

Purkinje fibers

Question 26

True or False: The aortic semilunar valve opens when the left ventricle contracts.

Answer 26

True

Question 27

What happens to the atrioventricular valves when the ventricles contract?

Answer 27

They close due to increased pressure

Question 28

right pulmonary artery

Answer 28

carries deoxygenated blood from the RV of the heart to the right lung

Question 29

aorta branches

Answer 29

brachiocephalic trunk L common carotid artery L subclavian artery

Question 30

arteries

Answer 30

pump into veins

Question 31

left pulmonary artery

Answer 31

carries deoxygenated blood

Question 32

aorta carries...

Answer 32

oxygenated blood

Question 33

inferior vena cava carries,

Answer 33

deoxygenated blood

Question 34

valves prevent..

Answer 34

back flow of blood

Question 35

pulmonary veins

Answer 35

receive oxygenated blood from the lungs

Question 36

ventricles

Answer 36

pump blood

Question 37

atria

Answer 37

receives blood from veins