Heart of cockroach, Biology

Heart of cockroach:
  1. In cockroach, heart is situated in pericardial sinus. It has13 chambers
  2. These are one behind the other. Each chamber opens into preceeding one.
  3. The last chamber is closed posteriorly. The first chamber opens into head sinus by a blood vessel called aorta.
  4. Pores called ostia are present on the side walls of these chambers.
  5. Through ostia blood enters into chambers of heart.
  6. In the heart blood flows from posterior to anterior direction.

804_Heart of cockroach.png

Posted Date: 8/29/2012 9:07:18 AM | Location : United States







Related Discussions:- Heart of cockroach, Assignment Help, Ask Question on Heart of cockroach, Get Answer, Expert's Help, Heart of cockroach Discussions

Write discussion on Heart of cockroach
Your posts are moderated
Related Questions
Q. Is it expected that a change in the primary, in the secondary or in the tertiary structure of a protein will produce furthermore functional consequences? Any change of the p

Q. What is the deplasmolysis of plant cells? The plant cell when placed under hypertonic medium loses a great quantity of water and its cell membrane detaches from the cell wal

What are the capillaries of the vascular system? Capillaries are small blood vessels that perform exchange of substances among the blood and the body tissues. Capillaries are n

Q. On which organelle of the cell structure does intracellular digestion depend? What is the chemical content of those organelles? Intracellular digestion take place by the act

TYPES OF NURSING UNITS: The design of nursing unit should maximize the function of the unit by following its task. The design of nursing unit has also under gone a radical cha

Gelation Agar gels can be formed in very dilute solutions containing a fraction of 1% agar. In fact gelation is perceptible at concentrations as low as 0.04%. These gels are ri

A.N.S. (Autonimic Nervous System) Name given by Langley . Controled by Hypothelamus. Partially independent system. Controls involuntary actions as heart beat, breathing,

Conclusions drawn from the Monohybrid Crosses From the results of his monohybrid crosses, following conclusions were obtained :- 1 .       Law of Unit or Paired Factors (Po

Role of Pancreas in Digestion Pancreatic  juices  secreted from  the  pancreas  aid  in  digestion  of  the  food. About 600-800  ml  of  fluid  i.e.  the  pancreatic juice  is

Products of Cleavage (Morula and blastula) In several cases, the blastomeres in early cleaving stages tend to presume spherical shape like that of the egg earlier than cleava