Question

Match the definition to the correct term in the given list.
A thin-walled blood vessel that carries blood from capillaries to the heart.

Vein, cardiac cycle, cardiac output, heart rate, heart beat, double circulation, circulatory system, extracellular fluid, intercellular fluid, myogenic heart, neurogenic heart.

Answer 1

1) Vein - Veins are blood vessels that carry blood towards the heart.

2) Cardiac cycle - It is the performance of the human heart from the beginning of one heartbeat to the beginning of the next one.

3) Heart rate - It is the speed of the heartbeat measured by the number of contractions of the heart per minute.

4) Heartbeat - It may refer to the cardiac cycle of the heart.

5) Double circulation - It is the type of circulation in which blood passes through the heart twice.

6) Circulatory system - The system, which is primarily meant for the circulation of nutritive products in the body is called the circulatory system.

7) Extracellular fluid - It denotes all the body fluids outside the cell.

8) Intercellular fluid - it denotes body fluids within the cells.

9) Myogenic heart - It is capable of generating independent cardiac contraction.

10) Neurogenic heart - It is the heart which requires nervous impulse to contract the heart.

So the correct option is Veins.