Heart

Question 1

Right side of the heart which carries blood to lungs for O2 CO2 exchange and back to heart

Answer 1

Pulmonary Circuit

Question 2

Left side of heart which supplies oxygenated blood to all tissues of the body and returns it to the heart

Answer 2

Systemic circuit

Question 3

Blood vessels are attached to which part of the heart?

Answer 3

Base

Question 4

Heart is located in the

Answer 4

Mediastinum, between the heart

Question 5

Double walled sac that encloses the heart

Answer 5

Pericardium

Question 6

The heart wall is anchored to diaphragm ________ and sternum ___________.

Answer 6

Inferiorly
anteriorly

Question 7

What are the 3 layers of the heart wall superficial to deep?

Answer 7

Epicardium
Myocardium
Endocardium

Question 8

What are the 3 layers of the heart wall deep to superficial?

Answer 8

Endocardium
Myocardium
Epicardium

Question 9

The layer of the heart wall that is cardiac muscle is

Answer 9

Myocardium

Question 10

When sympathetic division of the ANS is activated and HR rises, which layer of the heart will the Epi go to? AKA any effect on the heart will go to….

Answer 10

Myocardium

Question 11

The endocardium portion of the heart wall has ______ _______ epithelia

Answer 11

Simple Squamous

Question 12

The right a left atria of the four chambers are responsible for

Answer 12

Receiving blood returning to heart through afferent vessels (veins)
Auricles

Question 13

The right and left ventricles of the four chambers are responsible for

Answer 13

Pumping blood into efferent vessels (arteries)

Question 14

Arteries are _____ vessels

Answer 14

efferent

Question 15

Veins are ______ vessels

Answer 15

afferent

Question 16

What is the wall that separates atria

Answer 16

Interatrial septum

Question 17

What is the muscular wall that separates ventricles

Answer 17

Interventricular septum

Question 18

Internal ridges in both ventricles are called

Answer 18

Trabeculae carneae

Question 19

The internal ridges of myocardium in atria and both auricles are called

Answer 19

Pectinate muscles

Question 20

The flaps of the heart that allow for expansion to allow more blood are called

Answer 20

Auricles

Question 21

What is a sulcus

Answer 21

Groove that contains blood vessels

Question 22

On the external anterior portion of the heart, the Coronary (Atrioventricular) sulcus separates…

Answer 22

atria and ventricles

Question 23

On the external anterior portion of the heart the Ant. Interventricular sulcus overlies

Answer 23

the interventricular septum that divides the right ventricle from the left

Question 24

These valves control blood flow between atria and ventricles

Answer 24

Atrioventricular (AV) valves

Question 25

Left AV valve is also known as (name used in clinical setting)

Answer 25

mitral valve

Question 26

Cords that connect AV valves to papillary muscles

Answer 26

Chordae tendineae

Question 27

Striated short thick branched cells one central nucleus

Answer 27

Cardiocytes

Question 28

Join cardiocytes end to end

Answer 28

Intercalated discs

Question 29

Electrical junctions found at intercalated discs allow ions to flow between cells; can stimulate neighbors

Answer 29

Gap junctions

Question 30

The entire heart contracts in what series?

Answer 30

First the atria then the ventricles

Question 31

Atrial or ventricular contractions is also known as

Answer 31

Systole

Question 32

Atrial or ventricular relaxation is also known as

Answer 32

diastole

Question 33

List the conduction system in order

Answer 33

SA node
Junctional fibers
AV node
AV bundle
R and L bundle branches
Purkinje fibers

Question 34

Normal heartbeat is triggered by

Answer 34

The SA node