Advertisements
Advertisements
प्रश्न
Why is blood needed by all the parts of a body?
Advertisements
उत्तर १
- Blood carries oxygen, food, hormones and other essential substances to different parts of the body.
- It brings carbon dioxide and other excretory substances from different parts of the body and expels them with the help of the lungs and other excretory organs.
- It sends toxic and harmful substances formed in metabolism to the liver to make them harmless. Thus, all organs need blood.
उत्तर २
- Blood is needed by all the parts because it contains the digested food and oxygen in it.
- It supplies oxygen and digested food to various parts of the body to provide essential energy to them which helps the body to perform various functions.
APPEARS IN
संबंधित प्रश्न
Name the following:
The valve present in between the chambers on the right side of the human heart.
What is diastole?
Give reason for the following:
Only the veins and not the arteries are provided with valves.
Match the items given in Column A with the most appropriate ones in Column B and REWRITE the correct matching pairs :
Column A Column B
(i) Cranial nerves Testosterone
(ii) Leydig cells Natural reflex
(iii) Acetylcholine 12 pairs
(iv) Spinal nerves Prolactin
(v) Sneezing Neurotransmitter
- 18 pairs
- 31 pairs
- Conditioned reflex
Blood consists of two parts - a liquid part and a cellular part. Name these parts and briefly write about them
Multiple choice questions. Tick ( ✓ ) the correct choice:
The blood vessels in which blood goes away from the heart to different body parts are
Describe the functions of the: Heart
Differentiate between:
Open circulatory system and Closed circulatory system.
Which of the following health condition refers to the type of blood cancer in which uncontrolled increase in number of WBCs occurs?
Name these:
Three circulating fluids in human body.
