Advertisements
Advertisements
प्रश्न
Differentiate between:
Open circulatory system and Closed circulatory system.
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. |
APPEARS IN
संबंधित प्रश्न
Why is blood needed by all the parts of a body?
State the exact location of the Chordae tendinae
Why is it necessary to know the blood groups before giving transfusion?
When a doctor is recording your pulse, he is pressing on your wrist exactly on a
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Differentiate between members of the following pairs with reference to the aspect asked
within bracket:
Erythrocytes and leucocytes (function)
Differentiate between the following pair of terms: Vena Cava and Aorta
The process of keeping the blood flowing continuously throughout the body.
The endocrine glands produce chemical substances called ____
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
 |
- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
