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प्रश्न
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
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उत्तर
Atrial wall is less muscular than the ventricular wall because the major function of atria is
to receive blood from the body and pump in into very next ventricles. While the ventricles
pump the blood out of the heart. Right ventricle to the lungs and the left ventricle to all the
body parts.
संबंधित प्रश्न
fill in the blanks with suitable functions: Eustachian Tube and ______
Give appropriate biological or technical terms for the following :
The complex consisting of a DNA strand and a core of histones
Given below is a diagram of a human blood smear. Study the diagram and answer the questions that follow:
- Name the components numbered ‘1’ to ‘4’.
- Mention two structural differences between the parts ‘1’ and ‘2’.
- Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
- What is the average lifespan of the component numbered ‘1’ ?
- Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain.
Which organ acts as a pump in the circulatory system?
Blood consists of two parts - a liquid part and a cellular part. Name these parts and briefly write about them
Fill in the blanks with suitable words given below:
The oxygen-rich blood is pumped into different parts of the body through ______.
Differentiate between:
Open circulatory system and Closed circulatory system.
Respiration takes place because of its up and down movement.
Identify the function of the erythropoietin hormone produced by kidney cells.
Identify the normal haemoglobin count in human females.
