Heart 2 182 -->

Question 1

cardiac cycle

Answer 1

atria simultaneously contract
ventricular diastole
last 1/2 of cycle, all chambers are relaxing

Question 2

atrial diastole

Answer 2

contraction of ventricles simultaneously

Question 3

arterial flutter

Answer 3

atria attempt to beat at a rate of 200-400 times per minute

Question 4

atrial fibrillation

Answer 4

chaotic muscle impulses in atria, leading to an irregular heart rate

Question 5

cardiac arrhythmia

Answer 5

any abnormality in the rate, regularity or sequence of the cardiac cycle.

Question 6

premature ventricular contractions

Answer 6

from stress, stimulants (caffeine, or sleep deprivation
only dangerous in great numbers
“skip a beat” or “jumping”

Question 7

ventricular fibrillation

Answer 7

rapid repetitious movement of the ventricular muscle, replacing normal contraction
life threatening

Question 8

cardiac arrest

Answer 8

cessation of cardiac activity

irregularity in pumped motions, circulation stops

Question 9

heart murmur

Answer 9

abnormal heart sounds;
caused by usually turbulence of by valve leakage
all should be checked out

Question 10

bradycardia

Answer 10

atypically slow heartbeat; less than 50 bpm

Question 11

athletes bradycardia

Answer 11

beneficial adaptation resulting from muscular heart, healthy circulatory system, excellent lung capacity

Question 12

foramen ovale

Answer 12

passageway for blood during fetal life from right atrium to left; pushing flap, septum primum

Question 13

septum primum

Answer 13

prevents blood in fetal life from returning from the left atrium to the right

Question 14

fossa ovalis

Answer 14

shallow depression in interatrial wall after fossa ovale is closed

Question 15

patent foramen ovale

Answer 15

perforated ross ovalis; atrial septal defect

Question 16

congestive heart failure

Answer 16

inability for heart to pump enough to meet body’s needs
2 main causes: ventricle weakness, or inability to relax
legs and abdomen fill with fluid

Question 17

high altitude pulmonary edema

Answer 17

at high attitudes, the air gets thinner, blood pressure in lungs increases to compensate for low oxygen levels
edema in lungs blocks gas exchange