Circulatory system

Question 1

vascular organ function

Answer 1

transport of substances & second defense

Question 2

it is a muscular organ that functions as a pump

Answer 2

heart

Question 3

heart structure

Answer 3

atria & ventricle

Question 4

3 layers of the heart wall

Answer 4

endocardium, myocardium & epicardium

Question 5

creates the force that starts the movement of blood

Answer 5

heart

Question 6

covers all of the
structures within the heart chambers, including the valves

Answer 6

endocardium

Question 7

Loose CT that contains Purkinje fibers, small blood vessels and nerves

Answer 7

Subendocardial layer

Question 8

the middle and thickest layer

Answer 8

myocardium

Question 9

lies between the muscle and the neighboring pericardial cavity

Answer 9

epicardium

Question 10

is composed of a single layer of a specialized simple squamous
epithelium called endothelium that lies on a basement membrane.

Answer 10

Tunica intima

Question 11

Contains variable amounts of collagen,
proteoglycans, and elastic fibers

Answer 11

Tunica media

Question 12

blood vessel that conducts blood away from the heart.

Answer 12

Artery

Question 13

3 types of arteries

Answer 13

elastic, muscular and arterioles

Question 14

Also known as conducting artery

Answer 14

Elastic Artery

Question 15

cells that accumulate
lipid with ageing, and
the intima layer
thickens, one of the
first signs of
atherosclerosis.

Answer 15

Myointimal cells

Question 16

Also known as distributing artery

Answer 16

Muscular Artery

Question 17

referred to as resistance vessels

Answer 17

Arterioles

Question 17

smallest arteries just before they turn into capillaries

Answer 17

Arterioles

Question 17

blood vessel that conducts blood toward the heart

Answer 17

Veins

Question 17

a short microvessel in the
microcirculation that links arterioles and capillaries.

Answer 17

Metarterioles

Question 18

responsible for carrying oxygen rich blood from the lungs to
the heart.

Answer 18

Pulmonary veins

Question 19

carry deoxygenated blood from the rest of the body back to
the heart

Answer 19

Systemic veins

Question 20

veins that lie near the skin’s surface and lack corresponding arteries

Answer 20

Superficial

Question 21

found within muscle tissue and do have a corresponding artery

Answer 21

deep veins

Question 22

Smallest blood vessels

Answer 22

CAPILLARIES

Question 23

Also known as Exchange vessels

Answer 23

CAPILLARIES

Question 24

have small holes and look like a kitchen strainer

Answer 24

Fenestrated Capillary

Question 25

Also called sinusoids

Answer 25

Sinusoidal Capillary

Question 26

Capillaries are classified into three types

Answer 26

continuous, fenestrated and sinusoidal

Question 27

most common type of capillary

Answer 27

continuous