What is the ecg pattern of amhibian and reptile heart?
Answer:
I'm sorry that I took so long...I had other things to do.
Heart size is proportional to body size in all classes of vertebrates except birds where it is proportionally smaller in larger animals.Mammals are the most studied group and the heart appears to be about 0.59% of body mass.
Reptiles - 0.51% of body mass
Amphibians - 0.46% of body mass
Fish - 0.2% of body mass
1 kg bird - 0.82% of body mass
Humans, birds, and mammals have a 4-chambered heart that completely separates oxygen-rich and oxygen-depleted blood. Fish have a 2-chambered heart in which a single-loop circulatory pattern takes blood from the heart to the gills and then to the body. Amphibians have a 3-chambered heart with two atria and one ventricle. A loop from the heart goes to the pulmonary capillary beds, where gas exchange occurs. Blood then is returned to the heart. Blood exiting the ventricle is diverted, some to the pulmonary circuit, some to systemic circuit. The disadvantage of the three-chambered heart is the mixing of oxygenated and deoxygenated blood. Some reptiles have partial separation of the ventricle. Other reptiles, plus, all birds and mammals, have a 4-chambered heart, with complete separation of both systemic and pulmonary circuits.
I Hope these help also.
http://www.merck.com/mmhe/sec03/ch021/ch...
http://icb.oxfordjournals.org/cgi/conten...
http://64.233.169.104/search?q=cache:qaw...
http://64.233.169.104/search?q=cache:dh-...
http://64.233.169.104/search?q=cache:zc5...
This question is probably better placed in vet or biology threads.
This isn't something that medical school teaches you.
different reptile different rate but all increase with an increases in surrounding temperature or decrease if temp goes down
The medicine and health information post by website user , ByeDR.com not guarantee correctness , is for informational purposes only and is not a substitute for medical advice or treatment for any medical conditions.
More Questions and Answers...