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प्रश्न
Differentiate between:
Open circulatory system and Closed circulatory system.
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उत्तर
| Open circulatory system | Closed circulatory system |
| Blood may flow in vessels but also remains in direct contact with tissues. | Blood flows in definite vessels known as arteries and veins. |
| Blood spaces or sinuses are present. | Blood spaces or sinuses are absent |
| Haemocoel is present. | Haemocoel is absent. |
| Found in insects, e.g., cockroach, housefly, etc. | Found in annelids and higher vertebrates. |
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संबंधित प्रश्न
The vein that carries oxygenated blood.
The exact location of the tricuspid valve
Which side of the heart (left or right) contains oxygenated blood?
What does the term “double circulation” mean?
How do you account for the following difference?
The left ventricle has thicker walls than the right ventricle.
Given below is a highly schematic diagram of the human blood circulatory system.
Which numbers represent the following respectively?
Aorta
Hepatic portal vein
Pulmonary artery
Superior vena cava
Renal vein
Stomach
The artificial method of filtering the blood or removing the wastes from the blood.
Which of the following is a major part of the plasma?
The heart is covered by ______.
Given below are four statements regarding human blood circulatory system:-
- Arteries are thick walled and have narrow lumen as compared to veins.
- Angina is acute chest pain when the blood circulation to the brain is reduced.
- Persons with blood group AB can donate blood to any person with any blood group under ABO system.
- Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
