The Cardiovascular System - Electrical Conduction

Question 1

Cardiac Cycle

Answer 1

A single cardiac cycle consists of the simultaneous contractions of both atria followed by the simultaneous contractions of both ventricles.

Question 2

Systole

Answer 2

Contraction of the ventricles (and relaxation of the atria)

Question 3

Diastole

Answer 3

Relaxation of the ventricles

Question 4

Dilate

Answer 4

Relax

Question 5

Why do the ventricles diastole?

Answer 5

To receive blood

Question 6

How do people measure blood pressure?

Answer 6

They measure by the amount of pressure placed on arterial walls during Systole and Diastole

Question 7

When a blood pressure reading is taken, the top number is called the _____

Answer 7

Systolic Pressure

Question 8

When a blood pressure reading is taken, the bottom number is called the _____

Answer 8

Diastolic Pressure

Question 9

The main controller of the heart is a tiny bundle of nervous tissue called the ___

Answer 9

Sinoatrial Node

Question 10

What sets the pace of the heart?

Answer 10

The Sinoatrial Node

Question 11

A normal resting heart rate is between what?

Answer 11

60 and 100 beats per minute

Question 12

A heart rate slower than 60bpm indicates ____

Answer 12

Bradycardia

Question 13

A heart rate faster than 100bpm indicates ____

Answer 13

Tachycardia