Explain process to control of breathing, Biology

Assignment Help:

Explain process to Control of Breathing?

The rate of breathing is controlled by the medulla, the segment of brain stem just above the spinal cord. If the brain stem is cut just above the medulla, the basic breathing mechanism is left intact. The level of oxygen, or pO2 , provides little feedback information, but excessive carbon dioxide in the air causes breathing to become deeper and more rapid, even in the presence of excess oxygen. In extreme situations of oxygen depletion, chemosensors located on the large blood vessels leading to the heart, the aorta, and carotid arteries send impulses to the respiratory centers, causing an increase in respiratory rate.

Muscle cells have another oxygen-carrying molecule called myoglobin, which consists of only one polypeptide chain with an iron-containing structure that binds one molecule of oxygen. This molecule serves as a reserve for periods of high oxygen demand in certain muscles. The energy required for the body to maintain life processes while at rest is called the basal metabolic rate, or BMR.

 


Related Discussions:- Explain process to control of breathing

Explain e. coli - microbiological study of water, Explain E. coli - Microbi...

Explain E. coli - Microbiological Study of Water? It is always present in human intestine so its presence indicates the faecal pollution and possible presence of other human or

Eggs of frog, EGG S OF FROG This egg is round & its diameter is of 1-2...

EGG S OF FROG This egg is round & its diameter is of 1-2 mm. It is mesolecithal & has distinct animal pole & vegital pole. The nucleus is found in the centre of the anim

Electron transport inhibitors, Electron Transport Inhibitors Several  c...

Electron Transport Inhibitors Several  compounds, including specific drugs, chemicals  and antibiotics  have been known to inhibit the electron  transfer  reactions at specific

Explain point mutations gene, Explain Point Mutations gene? Mutations ...

Explain Point Mutations gene? Mutations involving single genes occur by addition, substitution, or deletion of a single base in DNA. Such mutations, called point mutations, ca

Explain the sticky films - food microbiology, Explain the Sticky Films - Fo...

Explain the Sticky Films - Food Microbiology? Sticky films or tape are pressed against the surface to be assessed. Exposed film/tape is then pressed on the agar plate and analy

Biological sickness of soil, what is biological sickness of soil and its ma...

what is biological sickness of soil and its management

What are allosteric enzymes, What are allosteric enzymes? Allosteric re...

What are allosteric enzymes? Allosteric regulators can be allosteric inhibitors or allosteric activators. The interaction among an allosteric enzyme and the allosteric inhibito

Explain the health economics, Explain the Health Economics? Health econ...

Explain the Health Economics? Health economics concentrates on application of the principles and rules of economics in the sphere of health. In broad terms, it includes analysi

Significance of fertilization, SIGNIFICANCE OF FERTILIZATION - 1.      ...

SIGNIFICANCE OF FERTILIZATION - 1.      In fertilization process number of chromosome are diploid in zygote. 2.      During fertilization male & female chromosomes are combi

Hydrostatic skeleton, Hydrostatic Skeleton The functioning of the hyd...

Hydrostatic Skeleton The functioning of the hydrostatic skeleton in an animal depends upon the musculature being arranged around an enclosed volume of fluid. After that, cont

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