Advertisements
Advertisements
प्रश्न
What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?
Advertisements
उत्तर
The human heart is four chambered consisting of two atria and two ventricles. The left side of the heart receives oxygen-rich blood whereas the right side of the heart receives carbon dioxide-rich blood. The left and right sides of the heart are completely separated from each other by a muscular septum, which prevents the mixing of oxygen-rich and carbon-dioxide rich blood.
APPEARS IN
संबंधित प्रश्न
What are the components of blood?
What makes the blood look red?
The liquid connective tissue A circulates in our body continuously without stopping. This tissue contains a pigment B which imparts it a colour C. The tissue A consists of four components D, E, F and G. The component D fights infection and protects us from diseases. The component E helps in the clotting of tissue A if a person gets a cut. The component F is a liquid which consists mainly of water with many substances dissolved in it and component G carries oxygen from the lungs to all the parts of the body.
(a) What is (i) tissue A (ii) pigment B, and (iii) colour C?
(b) Name (i) D (ii) E (iii) F, and (iv) G.
(c) Name one substance (other than oxygen) which is transported by tissue A in the human body.
(d) Which two components of tissue A are the cells without nucleus?
(e) Name any two organisms ( animals) which do not have liquid like A in their body.
State the Function: Vitamin K
Which is the correct sequence of blood flow?
Why are leucocytes classified as granulocytes and agranulocytes? Name each cell and mention its functions.
What prevents the backflow of blood inside the heart during contraction?
Single circulation i.e. blood flows through the heart only once during one cycle of passage through the body, is exhibited by
Name the organ which is located in the chest cavity with its lower tip slightly tilted towards the left.
Least abundant leucocyte is ______.
