0.4 How many spiracles are present in thoracic and abdominal region of cockroach?
Answers
4 spiralces are present in thoracic region, and 16 spiracles are present in abdominal region.
•Cockroach, for respiration has trachea, spread over in it's body.
•Trachea branch into spiracles, which has openings at the side of the body.
•As obvious through names, these organs help in passing of air through cockroach and hence respiration.
•Total number of spiracles in cockroach's body is 20, with 10 pairs.
•The number of spiracles in thoracic region is two pairs, equivalent to four in number.
•The number of spiracles in abdominal region is eight pairs, equivalent to sixteen in number.
Thoracic - 2 pairs
Abdominal - 8 pairs.
Explanation:
- Spiracles are small opening which is present in cockroaches. Fresh oxygenated air enters the body of the cockroach through the spiracles.
- There are in total 10 pairs of spiracles present in the body of an adult cockroach.
- Out of this two pair are present in the thoracic region and the other 8 pair are present in the abdominal region.
- Deoxygenated blood from the body of the cockroach diffuses out into the air through these openings known as spiracles.
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