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The heart's main function is to pump blood and oxygen throughout the body via the circulatory system, delivering essential nutrients to cells and carrying away waste like carbon dioxide, which is then sent to the lungs for removal.

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tricuspid valve is located at 3. its role is to transfer blood into the right ventricle and prevent the backflow of blood into the right atrium. bicuspid valve is also known as the semilunar valve, it is located at 5. and at 11. Semilunar valves prevent blood from flowing back into the ventricles, ensuring one-way circulation.

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2. superior and inferior vena cava collects the deoxygenated blood from the body and brings it back to the heart in right atrium.

3. no all the veins do not carry deoxygenated blood, pulmonary vein carry oxygenated blood from lungs to left atrium. pulmonary artery carry deoxygenated blood to lungs

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task 2 . Pericardial fluid's main function is to lubricate the heart, allowing the two layers of the pericardium to glide smoothly against each other with each heartbeat, which reduces friction and prevents damage as the heart contracts and expands. It also provides a cushion, protecting the heart from minor impacts and infections

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Task

1. Identify and label the parts of given heart diagram.

ANSWER:

2. Write the function of pericardial fluid.

ANSWER:

3. Write any three functions of heart.

ANSWER:

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Task

1. Draw a flow chart to represent the flow of blood through heart as regulated by the valves.

ANSWER:
2. Describe the position of inferior and superior vena cava and explain how it helps in their functioning.
ANSWER:
3. Do you think all the veins carry deoxygenated blood and arteries carry oxygenated blood?
ANSWER:

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Task

1. Identify the position of tricuspid and bicuspid valve and write their roles.

ANSWER:
2. What do you know about septum.
ANSWER:
3. Differentiate between right side and left side of heart.
ANSWER:

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1. Tricuspid is located at the - position 3

Bicuspid is situated at - position 5

The tricuspid valve allows blood to flow from the right atrium to the right ventricle.

The bicuspid valve allows blood to flow from the left atrium to the left ventricle.

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Answer

1. position 3

2. position 5 both prevent back flow of the blood

3. The septum is a bone in the middle of the chest cavity which also helps protect our heart.

4. right side of the heart has a tricuspid valve whereas the left side has the mitral valve. Right side recieves deoxygenated blood whilst left side recieves oxygenated blood from the lung

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1.Tricuspid valve is at position 3

It's role is to transfer blood from right atrium to right ventricle and prevent the blood from going back to right atrium.

Bicuspid valve is at position 11

It's role is to transfer blood from left atrium to left ventricle and prevent the blood from going back to the left atrium.

2.A septum is a muscular or membranous wall that separates two chambers or cavities in an organ, especially in the heart, preventing the mixing of blood.