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

Chloroplasts, Chloroplasts are disk-like organelles with the double membra...

Chloroplasts are disk-like organelles with the double membrane found in the eukaryotic plant cells; contain thylakoids and are the site of photosynthesis. ATP is generated during

What dna and rna are polymers composed are called, DNA and RNA are polymers...

DNA and RNA are polymers composed of repeated units called?

Define the term underweight, Define the term Underweight? Just as overw...

Define the term Underweight? Just as overweight is the result of a positive energy balance irrespective of the etiology, underweight results when the energy balance is negative

Explain about the restriction enzymes, Which of the following is a false st...

Which of the following is a false statement regarding restriction enzymes? A. Restriction enzymes bind to a sequence specific element and disrupt the hydrogen bonds among

Secondary succession - community change, Secondary Succession - Community C...

Secondary Succession - Community Change Secondary succession is the sequential development of biotic communities after the complete or partial destruction of the existing comm

What is inharmonious ecological interaction, Q. What is inharmonious ecolog...

Q. What is inharmonious ecological interaction? The Inharmonious or negative ecological interaction is that in which at least one of the participating beings is harmed.

Phototropic curvature is the result of uneven distribution, Phototropic cur...

Phototropic curvature is the result of uneven distribution of : 1. Gibberellin 2. Phytochrome 3. Cytokinins 4. Auxin Auxin

What are the animal pole and the vegetal pole of egg, Q. What are the anima...

Q. What are the animal pole and the vegetal pole of the vertebrate egg? The animal pole of a telolecithal egg is the portion of the egg with little vitellus it is opposite to t

Explain various chemical formulas, Explain various chemical formulas? C...

Explain various chemical formulas? Chemical Formulas A molecule can be represented in any of three ways: its chemical formula, structural formula, or Lewis diagram. A chemic

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