These have valves, which allow the flow of blood in one direction i.e. towards the heart and prevent the backward flow?
ان میں والوز ہیں ، جو خون کے بہاؤ کو ایک سمت میں یعنی دل کی طرف جانے اور پسماندہ بہاؤ کو روکنے کی اجازت دیتے ہیں؟
Answer: Veins
Explanation
Veins carry blood toward the heart.
They have valves to prevent the backward flow of blood due to low pressure, especially in the limbs.
Arteries do not have valves (except at the heart).
Capillaries are too small and thin to have valves.
This question appeared in
Past Papers (7 times)
ETEA 25 Years Past Papers Subject Wise (Solved) (2 times)
KPK Teacher Past Papers SST PST CT TT PET (2 times)
Secondary School Teacher SST Past Papers, Syllabus, Jobs (3 times)
This question appeared in
Subjects (2 times)
EVERYDAY SCIENCE (2 times)
Related MCQs
- In the smooth glistening internal layer of the heart in which blood flow is called:
- In which animal does blood flow from the pulmocutaneous circulation to the heart before circulating through the rest of the body?
- The three types of flows in supply chain management are material flow, information flow, and ______ flow.
- The excess of an expenditure flow over the income flow is term as _______
- What is the direction of energy flow in an ecosystem?
- The flow of charge that changes direction periodically is called?
- Arteries, veins, and capillaries are the three main types of blood vessels. Within each type, blood flows in only one direction. The vessels which carry blood away from the heart to ______?
- Choose the correct flow of impulse transmission in the human heart?
- The induced current will flow in such a direction so as to oppose the cause that produces it is statement of _______?
- A type of circulatory system blood flow through the spaces among tissues called?
