Heart

Question 1

Pulmonary circuit

Answer 1

Right side of the heart. Unoxygenated blood

Question 2

Systemic circuit

Answer 2

Left side of the heart. Oxygenated blood

Question 3

AV valves

Answer 3

Atrioventricular valves between the atria and ventricles prevent backflow into the atria when the ventricle contract

Question 4

Semilunar valves

Answer 4

Guard bases of large arteries and prevent backflow in to arteries. Semilunar valves are closed when the heart is relaxed

Question 5

SA Node

Answer 5

Sinoatrial node located in the right atrial wall that generates impulses and acts as a pacemaker

Question 6

AV node

Answer 6

Atrioventricular node above the tricuspid valve that delays the impulse to allow atria to respond

Question 7

AV bundle

Answer 7

Bundle that provides an electrical connection between atria and ventricles

Question 8

Purkinje fibers

Answer 8

Network of fibers that carry impulse to the apex and ventricular walls

Question 9

Arrhythmia

Answer 9

Irregular heart rhythms

Question 10

Fibrillations

Answer 10

rapid and irregular contraction

Question 11

Bradycardia

Answer 11

Slow heart rate

Question 12

ECG/EKG

Answer 12

A test used to monitor electrical signals of the heart

Question 13

Heart sounds

Answer 13

Noises generated by the beating heart and its blood

Question 14

Systole

Answer 14

When the heart is contracted

Question 15

Diastole

Answer 15

The heart is relaxed and drawing in blood

Question 16

Tachycardia

Answer 16

A fast heartbeat

Question 17

Pericardium

Answer 17

Double walled sac around the heart