Regulation of heart, Biology

Assignment Help:

Regulation of Heart

The number of electrical impulses initiated by the SA node is primarily the result of its innervation by fibers from both sympathetic and parasympathetic branches of the autonomic nervous system. Sympathetic branch have a positive chronotropic effect (increase in rate) while parasympathetic branch have a negative chronotropic effect (decrease in rate). Parasympathetic innervations occurs by way of the vagus nerve. Sympathetic nerve fibers, when stimulated release norepinephrine at the nerve endings and comprise what is called the adrenergic system. 

The central nervous system regulate the heat through the cardiac center in medulla and the hypothalamous.


Related Discussions:- Regulation of heart

Eugenics, Eugenics : This is the study of improvement of human races by app...

Eugenics : This is the study of improvement of human races by applying the genetic laws. In other words Eugenics is the bio-social movement & applied science that advocates the use

DIGESTION, GIVE ADETAILED ACCOUNT OF THE VARIETY OF FUNCTIONS PERFORMED BY ...

GIVE ADETAILED ACCOUNT OF THE VARIETY OF FUNCTIONS PERFORMED BY THE LIVER

Nutrient requirement during angina pectoris, Q. Nutrient requirement during...

Q. Nutrient requirement during angina pectoris? The nutrient requirement here is the same as discussed earlier, however, to sum up it can be said that we need to restrict calor

Agro industrial-by-products from sugar industry, By-Products from Sugar Ind...

By-Products from Sugar Industry India is one of the important sugarcane (Saccharum officinarum) growing countries of the world. Five main by-products are available from the su

The skeletal system, Where does cartilage occur in a joint and what is its ...

Where does cartilage occur in a joint and what is its function ?

Ecology, Explain how human activities can cause an imbalance in biogeochemi...

Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills.

Define comprehensive dietary management regime of patient, Define Comprehen...

Define Comprehensive Dietary Management Regime of Patient? A comprehensive dietary management regime of the patient should be based on the patient profile as gathered pre and p

What are the tupes of aortic aneurysm surgery, What are the tupes of Aortic...

What are the tupes of Aortic Aneurysm Surgery? Types of Surgery :  Technique of surgery and the approach depends on the site of thoracic or thoraco abdominal aortic aneuiysm.

Which are the living beings that carry out photosynthesis, Which are the li...

Which are the living beings that carry out photosynthesis? Which is the cell organelle responsible for the absorption of light for the photosynthesis process in plants and algae?

Explain about the freeze drying Method, Explain about the freeze drying Met...

Explain about the freeze drying Method? The Techniques of freeze-drying have been developed over the past half-century for the purpose of preserving certain biological material

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd