Advertisements
Advertisements
Question
Why is the velocity of blood flow the lowest in the capillaries?
Options
The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle.
Capillaries are far from the heart, and blood flow slows as distance from the heart increases.
The total surface area of the capillaries is larger than the total surface area of the arterioles.
The capillary walls are not thin enough to allow oxygen to exchange with the cells.
The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate.
Advertisements
Solution
The total surface area of the capillaries is larger than the total surface area of the arterioles.
RELATED QUESTIONS
Fill in the blank with suitable word given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through _________ artery.
Name the disease in which the number of platelets reduces to 25,000 – 30,000 per cubic mm of blood. State its major symptoms.
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process ? Briefly explain the precautions to be observed and taken in this process.
Multiple choice question. Tick (✓) the correct choice:
The four blood groups in humans are
- A, B, C and D
- A, B, AB and C
- A, B, AB and O
- A, B, AB and OO
Given below are the diagrammatic sketches of two kinds of blood vessels.
(a) Identify the two kinds of blood vessels A and B.
(b) name the parts numbers 1 to 6
(c) Mention any two main differences between A and B.
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 name of the blood vessel in each case as mentioned ahead.
Which vessel would contain the highest concentration of amino acids and glucose soon after a meal?
Name the Following
The blood vessel supplying blood to the kidney.
Name the Following
The blood vessels which have valves in them.
Multiple Choice Questions
Arteries are:
Give reason Arterial walls are thicker than those of veins.
