Circulatory System

Question 1

What are the three main parts of the circulatory system?

Answer 1

Blood, Blood vessels, heart

Question 2

What is the primary function of the circulatory system

Answer 2

To transport substances such as nutrients oxygen waste and carbon dioxide around the body. It also AIDS in the regulation of body temperature and the transportation of white blood cells to fight infectious disease

Question 3

What are the four components of our blood

Answer 3

Plasma, red blood cells, white blood cells, platelets

Question 4

What is the structure and function of red blood cells

Answer 4

Red blood cells contain a protein called hemoglobin that turns bright red when oxygenated. They don’t have a nucleus so they carry more hemoglobin, but this also means that they don’t divide. Red blood cells are produced in the bone marrow. Their function is to transport oxygen around the body.

Question 5

What is the structure and function of white blood cells

Answer 5

White blood cells have a nucleus, and there are many different types of white blood cells. White blood cells increase in number when you are fighting off an infection. The function of white blood cells is to protect your body against infections

Question 6

What is the function of neutrophils

Answer 6

Kill bacteria, fungi, and foreign debris

Question 7

What is the function of monocytes

Answer 7

Clean up damaged cells

Question 8

What is the function of eosinophils

Answer 8

Kill parasites, cancer cells, and is involved in allergic response

Question 9

What is the function of lymphocytes

Answer 9

Help fight viruses and make antibodies

Question 10

What is the function of basophils

Answer 10

Involved an allergic response

Question 11

What is the structure and function of platelets

Answer 11

Platelets are tiny fragments of larger cells produce in the bone marrow. They function in blood clotting, for example after a cut.

Question 12

What is the structure and function of plasma

Answer 12

Plasma is a clear yellowish fluid. It moves blood cells, gases, nutrients, and wastes around the body through the circulatory system

Question 13

What substance makes up the majority of your blood

Answer 13

Plasma

Question 14

How much of your blood is composed of white blood cells and platelets

Answer 14

Less than 1%

Question 15

How much of your blood is composed of white blood cells and platelets

Answer 15

Less than 1%

Question 16

What are blood vessels

Answer 16

A network of two to carry blood around the body

Question 17

What are arteries

Answer 17

Carry blood away from the heart. They have thick, elastic walls to withstand the high pressure of blood moving through them.

Question 18

What are veins

Answer 18

Hairy blood towards the heart. They have a large capacity but thinner walls since blood flows with less pressure. They also have valves to prevent back flow of blood.

Question 19

What are capillaries

Answer 19

Tiny blood vessels that connect arteries and veins. They are so small that only one cell can move through them at a time. The walls are very thin so oxygen and nutrients can easily diffuse in and out of the blood.

Question 20

What is the primary function of your heart

Answer 20

To pump blood around the body

Question 21

How many chambers does your heart have and what are they called

Answer 21

Your heart has four chambers. The left atria, the right atria, the left ventricle, and the right ventricle.

Question 22

What muscle allows for tissue to contract at the same time

Answer 22

Cardiac muscle

Question 23

What is a normal resting heart rate? What factors contribute to changing your heart rate?

Answer 23

A normal resting heart rate is 70 to 80 BPM. Many factors such a stress and exercise can change your heart rate.

Question 24

Name at least four substances that are carried by the circulatory system

Answer 24

Blood, oxygen, nutrients, and carbon dioxide

Question 25

Explain how the circulatory system interacts with the digestive system

Answer 25

The circulatory system obtains nutrients from the small intestine in the digestive system and transports it to all parts of the body

Question 26

How is an angiogram different from a regular x-ray

Answer 26

A fluorescent dye is injected into your bloodstream to help show blockages. An ordinary x-ray does not include this dye.

Question 27

What kind of tissue is found in the blood

Answer 27

Connective tissue

Question 28

What kind of tissue is found in the blood vessels

Answer 28

Epithelial tissue, smooth muscle tissue, connective tissue

Question 29

What kind of tissue is found in the heart

Answer 29

Cardiac muscle tissue, nerve tissue, epithelial tissue, connective tissue

Question 30

How is cardiac muscle different from the smooth muscle that surrounds the digestive tract

Answer 30

Cardiac muscle goes through rhythmic contractions even without nerve input. Smooth muscle cells such as those in the digestive tract contract only with nerve input

Question 31

What is coronary artery disease

Answer 31

A buildup of plaque in the arteries that supply the heart with blood. If the blockage becomes severe, this can cause a heart attack.

Question 32

What are blood clot disorders

Answer 32

Blood clot disorders occur when blood clots too easily, so it blocks blood vessels. It can also occur when blood does not easily enough, and causes excessive bleeding.