Blood vessels through which systemic circulation begins from heart and terminates in heart are A and B respectively. Name the blood vessels A and B

Name the smallest blood vessel.

Blood vessels in Pheretima, which have valves are

The blood vessel of frog which opens in its ventricles bringing oxygenated blood is

The figures given below are crose-coctions of blood vessels Identity the blood vessels A B and C.

Artery is a blood vessel which carries blood

Blood vessel which brings oxygenated blood to left auricle is

The following simplified diagram refers to the outline plan of the circulation of blood in a mammal, Study the diagram and write the number and the name of the blood vessel in each case as mentioned under. Which vessel begins and ends in capillaries ?

The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. Why is diastolic blood pressure muchh lower than systolic pressure? A. because the heart exerts more force on the blood during diastole B. Because the heart exerts no force on the blood during diastole C. Because the radii of the blood vessels increase during diastole while the force exerted by the heart on the blood remains the same. D. Because the radii of the blood vessels increase during diastole while the force exerted by the heart on the blood remains the same.

What is the nature of blood passing through blood vessels A, B, C and D respectively ?

The following simplified diagram refers to the outline plan of the circulation of blood in a mammal, Study the diagram and write the number and the name of the blood vessel in each case as mentioned under. in which vessel will the blood carry the most oxyhaemoglobin