Define the rate and depth of breathing, Science

Assignment Help:

Define the Rate and Depth of Breathing

Do you know what the normal rate of breathing in adults is and what are the factors on which it depends? Well, the normal rate of respiration in adults is 14 - 18 per minute. The rate and depth of breathing vary depending upon the health, physical activity and emotional state of the individual. The amount of air which enters or leaves the lungs varies in association with the changes in the depth of respiration.

In normal breathing, the intercostal muscles and the diaphragm are involved, but in deep breathing, accessoly muscles of respiration are involved. These muscles include sterno- mastoid, the pectoral is major (a skeletal muscle that adducts and rotates the arm) and the platysma (either of the two broad muscles located on the either side of the neck and innervated by the facial nerve, it extends from the lower jaw to clavicle and is involved in the movement of the mouth and jaw). Contraction of these muscles increases the capacity of the thoracic cavity. In this section, we have learnt about the mechanics of respiration. We have seen how the air passes in and then exhaled out. During this process, there is volume of air in the lungs, what we call pulmonary volumes.


Related Discussions:- Define the rate and depth of breathing

Explain the oxygen toxicity - histotoxic hypoxia, Explain the Oxygen toxici...

Explain the Oxygen toxicity - Histotoxic Hypoxia Exposure to oxygen at increased pressure can produce a marked increase in the dissolved oxygen in blood. It produces toxic effe

Explain loop of henle - structures of a nephron, Explain Loop of Henle - St...

Explain Loop of Henle - Structures of a Nephron Loop of Henle: The Loop of Henle is a long U-shaped part of the renal tubule, extending through the medulla from the end of the

Matter, heavy matter in the world

heavy matter in the world

What are common elements make the minerals of the earths, Describe Common e...

Describe Common elements that make up the minerals of the Earth's crust? The Earth's crust, which is the layer of the Earth we are on now, is made of numerous minerals and rock

Explain internal respiration, Explain Internal Respiration What do you ...

Explain Internal Respiration What do you understand by the term 'internal respiration'? Well, the interchange of gases between the blood and cells of the body is internal respi

Management of water resources management, Management of Water Resources Man...

Management of Water Resources Management: Management of Water Resources Management  of water resources means a programme to provide an adequate supply of good quality of water

Electricity, Draw a diagram of one battery connected to two light bulbs

Draw a diagram of one battery connected to two light bulbs

Modern concept of preventive medicine, Modern Concept of Preventive Medicin...

Modern Concept of Preventive Medicine: Now  let us  see how  the current concept of preventive medicine came into being. The story began only 150 years ago. People returning

What is the major source of water in city, Q. What is the major source of f...

Q. What is the major source of fresh water in the city/town/village where you live? Answer : River is a major source of fresh water.

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