Part 2

Question 0

Arteries

Answer 0

carry oxygen rich blood from the heart to the body

Question 1

Conductive Pathway

Answer 1

Electrical impulses originating in the heart cause the cyclic contractions

Question 2

Capillaries

Answer 2

connect arterioles with venules (small veins)

allow oxygen and nutrients to pass through the cells and carbon dioxide from the cells

Question 3

Veins

Answer 3

carry “un-oxygenated” blood back to the heart

Question 4

Order of blood flow

Answer 4

Superior and Inferior vena cavae
Right Atruim
Tricuspid Valve
Right Ventricle
Pulmonary Valve
Pulmonary Artery
Lungs
Pulmonary Veins
Left Atrium
Mitral Valve 
Left Ventricle
Aortic valve
Aorta
to the body
Superior and Inferior vena cavae
Repeat the process

Question 5

Right Heart

Answer 5

Recieves blood from the body and pumps it through the pulmonary artery to the lungs where it picks up fresh oxygen

Question 6

Left Heart

Answer 6

Recieves oxygen-full blood from the lungs and pumps it through the aorta to the body

Question 7

Systole

Answer 7

active phase of the heart when the chambers are contracting

Question 8

Diastole

Answer 8

resting phase of the heart, when the chambers are filling with blood

Question 9

Cardiac cycle

Answer 9

sequence of heart contractions and relaxations

Question 10

Cardiac output

Answer 10

volume of blood pumped by each ventricle in 1 min, avg about 5 liters/min for an adult at rest

Question 11

Stroke volume

Answer 11

amount of blood ejected from the ventricle with each beat

Question 12

Heart Rate (pulse rate)

Answer 12

number of times the heart beats in 1 min

Question 13

Siniatrial Node (SA Node)

Answer 13

pacemaker, located in the upper wall of the right atrium, initiates the heartbeat

impulse travels throughout the muscle of the atria, causing them to contract

Question 14

Atrioventricular Node (AV Node)

Answer 14

located in the septum at the bottom of the right atrium

Question 15

bundle of His

Answer 15

impulse travels from the atrioventricular bundle throughout the ventricular walls by way of the right and left bundle branches and the purkinje fibers, causing the ventricles to contract

located in the septum between the ventricles

Question 16

Sinus Rhythm

Answer 16

when the heartbeat is initiated by the SA Node

Question 17

Bradycardia

Answer 17

pulse rate below 60 beats/min

Question 18

Tachycardia

Answer 18

pulse rate above 100 beats/min

Question 19

Sinus Arrhythmia

Answer 19

regular variation in heart rate due to changes in the rate and depth of breathing, Normal.

Question 20

Premature Beats (extrasystoles)

Answer 20

beats that come before the expected normal beats

Question 21

Murmurs

Answer 21

abnormal heart sound due to valves not functioning properly

Question 22

Functional Murmurs

Answer 22

not abnormal structure, ventricles fill too rapidly

Question 23

Organic Murmurs

Answer 23

caused by structural changes in the heart