Blood Components Table Completion

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What are the primary components of the human circulatory system?

blood, heart, blood vessels, and lymph

How many loops does the human circulatory system circulate blood through?

two

What are the four chambers of the human heart?

two ventricles and two auricles

What is the primary function of blood vessels in the circulatory system?

transporting oxygenated blood and nutrients, and collecting metabolic wastes Signup and view all the answers

What is the main role of the human circulatory system?

providing essential nutrients, minerals, and hormones to various parts of the body, and collecting metabolic waste and toxins from the cells and tissues Signup and view all the answers

What does the circulatory system do with metabolic waste and toxins collected from the cells and tissues?

purifies or expels them from the body Signup and view all the answers

What is the total distance spanned by the veins, arteries, and capillaries of a human if laid end to end?

1,00,000 kilometres Signup and view all the answers

Where is the heart located in the human body?

In the chest cavity, right between the lungs Signup and view all the answers

How many chambers does the human heart have?

Four chambers Signup and view all the answers

What is the term used for the unique way blood flows in the human body?

Double circulation Signup and view all the answers

What is the main function of blood in the human circulatory system?

To circulate nutrients, hormones, minerals, and other essential components to different parts of the body Signup and view all the answers

What is the composition of human blood?

Plasma, red blood cells, white blood cells, and platelets Signup and view all the answers

What is the main function of red blood cells (RBC) / Erythrocytes?

Transporting oxygen, nutrients, and other substances to various parts of the body Signup and view all the answers

What are the three main organs of the human circulatory system?

Heart, blood vessels, lymphatic system Signup and view all the answers

What is the advantage of double circulation in the human body?

Every tissue in the body has a steady supply of oxygenated blood, and it does not get mixed with the deoxygenated blood Signup and view all the answers

What is the fluid part of the blood composed of?

90% water Signup and view all the answers

What are the main functions of red blood cells, white blood cells, and platelets?

Red blood cells transport oxygen, white blood cells destroy invading micro-organisms, and platelets help blood to clot. Signup and view all the answers

What is the role of platelets in the blood?

Platelets help blood to clot and seal wounds. Signup and view all the answers

How do white blood cells defend the body against bacteria and viruses?

White blood cells help to defend us against bacteria and viruses by capturing, killing, and digesting them, as well as producing antibodies. Signup and view all the answers

What is the composition of plasma in the blood?

Plasma transports dissolved substances such as sugar. Signup and view all the answers

Describe the appearance and function of platelets in the blood.

Platelets are little fragments of cells that help the blood to clot and seal wounds. Signup and view all the answers

What is the unique function of white blood cells compared to red blood cells?

White blood cells help to defend the body against bacteria and viruses, while red blood cells transport oxygen. Signup and view all the answers

Why is Kareena wrong when she says, ‘Arteries carry oxygenated blood, and veins carry deoxygenated blood’?

Kareena is wrong because arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart. Signup and view all the answers

Why can you feel your pulse in an artery but not in a vein?

You can feel your pulse in an artery because arteries have thick, elastic walls that expand and spring back as the blood surges through, creating the pulse. Signup and view all the answers

What is the function of capillaries?

The function of capillaries is to supply cells with necessary substances, such as oxygen and sugar, and to take away their waste products. Signup and view all the answers

How are capillaries different from arteries and veins in terms of structure?

Capillaries have very thin walls made up of only one layer of cells, unlike the thick, elastic walls of arteries and the thinner walls of veins. Signup and view all the answers

What is the main function of veins in the circulatory system?

The main function of veins is to carry deoxygenated blood back to the heart. Signup and view all the answers

Why do arteries have thick, strong, elastic walls?

Arteries have thick, strong, elastic walls to withstand the strong forces as the heart pumps blood through them. Signup and view all the answers

What makes capillaries suitable for their function in the body?

Capillaries have thin walls made up of only one layer of cells, allowing substances in the blood, such as oxygen and sugar, to easily get out and supply the surrounding tissues. Signup and view all the answers

What is the difference in wall thickness between veins and arteries?

Veins have much thinner walls compared to arteries. Signup and view all the answers

What is the role of capillaries in the circulatory system?

The role of capillaries is to carry blood close to every tissue in the body, supplying the tissues with necessary substances and removing waste products. Signup and view all the answers

What is the structure of capillaries and why is it important?

Capillaries have thin walls made up of only one layer of cells, which allows for the easy exchange of substances between the blood and the surrounding tissues. Signup and view all the answers