33.1 Circulatory System

Question 1

Atrium

Answer 1

The upper chamber on both sides of the septum( receives blood from body)

Question 2

Capillary

Answer 2

The fine branching blood vessels that form a network between the arterioles and venules

Question 3

Myocardium

Answer 3

A layer of muscle enclosed by two thin layers of epithelial and connective tissue. The myocardium pumps blood through the circulatory system

Question 4

Vein

Answer 4

The tubes that form part of the blood circulation body system. Carries oxygen depleted blood to the heart

Question 5

Ventricle

Answer 5

Lower chambers on both sides of the septum.( pumps blood out of heart)

Question 6

Aorta

Answer 6

Carries oxygen-rich blood to the body

Question 7

Superior vena cava

Answer 7

Brings oxygen poor blood from the upper body to right atrium

Question 8

Valves

Answer 8

Flaps of tissue that control the flow of fluid

Question 9

Right atrium

Answer 9

Accepts oxygen poor blood from the body

Question 10

Inferior vena cava

Answer 10

Brings oxygen poor blood from lower body to the right atrium

Question 11

Left atrium

Answer 11

Accepts oxygen rich blood from the lungs

Question 12

Left ventricle

Answer 12

Pumps oxygen rich blood to the body

Question 13

Septum

Answer 13

Separates the two sides of the heart

Question 14

Atrioventricular valves

Answer 14

Prevent blood from flowing backward into the atria

-Tricuspid, mitral and bicuspid valve.

Question 15

Semilunar Valves

Answer 15

Prevent blood from flowing back into the ventricles when the heart relaxes
Aortic and pulmonary valves

Question 16

SA node

Answer 16

Located at the right atrium, regulates the contraction of the atria

Question 17

AV node

Answer 17

Reaches electrical impulses from SA node. Generates electrical impulses that cause ventricles to contract

Question 18

Cardiovascular system

Answer 18

Made up of blood, heart, and blood vessels

Question 19

Atrium

Answer 19

Upper chamber of heart that receives blood that is returning to the heart

Question 20

Ventricle

Answer 20

Lower chamber of the heart that pumps blood out of the heart

Question 21

Blood pressure

Answer 21

Force against the inside walls of blood vessel caused by blood moving through arteries(moved by heart)

Question 22

High blood pressure (hypertension)

Answer 22

Can place a strain on the walls of the arteries and could cause that artery to burst

Question 23

Systolic pressure

Answer 23

The pressure of the blood when the ventricles contract

Question 24

Diastolic pressure

Answer 24

Indicates the steady flow of blood through artery