Advertisements
Advertisements
Question
Describe the functions of the: Heart
Advertisements
Solution
The heart is a muscular organ that pumps blood to all the cells in our body through a network of blood vessels. It pumps the blood and hence helps in circulating oxygen and nutrients to all body parts. The heart pumps deoxygenated blood to the lungs and oxygenated blood to the rest of the body
APPEARS IN
RELATED QUESTIONS
Why is blood needed by all the parts of a body?
Give technical terms for The protective covering of the heart
Why is it necessary to know the blood groups before giving transfusion?
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Fill in the blanks with suitable words given below:
The blood loaded with carbon dioxide from the body comes into the ______ of the heart.
Name the organ from which oxygenated blood goes into the heart
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Label the diagram given below to show the four main parts of the urinary system and answer the following questions.

- Which organ removes extra salts and water from the blood?
- Where is the urine stored?
- What is the tube through which urine is excreted out of the body?
- What are the tubes that transfer urine from the kidneys to the urinary bladder called?
What are the normal values of blood pressure in a normal human adult?
