Open Circulatory System
Trending Questions
Q.
Which among the following has an open circulatory system?
Arthropoda
Mollusca
Annelida
Coelenterata
Q.
Which animals do not have a circulatory system?
Q. Complete the following passage:
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Q. The thoracic cavity and the abdominal cavity is divided by a transverse partition called __________ in rabbits.
- dura mater
- diaphragm
- diastema
- diencephalon
Q. Plasma is the liquid component of the blood.
- True
- False
Q. Complete the following passage:
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Q. Match the following.
| Aortic valve | Prevents backflow of blood from right ventricle to right atrium |
| Tricuspid valve | Prevents backflow of blood from left ventricle to left atrium |
| Bicuspid valve | Prevents backflow of blood from aorta to ventricle |
- A-II, B-III, C-I
- A-III, B-II, C-I
- A-III, B-I, C-II
- A-II, B-I, C-III
Q. Partly open type of circulatory system is found in few members of class
- Oligochaeta
- Polychaeta
- Archiannelida
- Hirudinea
Q. Complete the following passage:
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.
Q.
What happens to the valves when a heart stroke occurs ?
Q. Plasma is the liquid component of the blood.
- True
- False
Q. Which of the following organ is protected by thoracic cage?
- Lungs
- Kidneys
- Heart
- Brain
