Human respiratory system - thoracic cavity, Biology

Assignment Help:

THORACIC CAVITY -

Thoracic cavity is air tight. On dorsal side vertebral column present.
On ventral side sternum present. On lateral side 12 pairs ribs present.
On posterior side diaphragm present which is fibro muscular, radial muscles present.
Diaphragm is helpfull in micturition, parturition and defaecation.
In pregnency diaphragm becomes inactive. So rate of respiration is increased.
In singers diaphragm is more active.Between ribs 11 pairs inter costal muscles are present. 8-12 are floating ribs.

Related Discussions:- Human respiratory system - thoracic cavity

Organogenesis - plant tissue and organ culture, Organogenesis - Plant Tissu...

Organogenesis - Plant Tissue and Organ Culture Organogenesis refers to the differentiation of organs such as roots, shoots or flowers. Shoot bud differentiation may occur dire

Define about the nutrition, Define Nutrition, Diet and Cancer? In this,...

Define Nutrition, Diet and Cancer? In this, we will discuss the common forms of cancer, how they develop, relevant etiological factors, pathological/metabolic changes and other

Explain the classification of simple proteins, Explain the Classification o...

Explain the Classification of simple proteins? 1) Albumins: Proteins such as egg albumin and serum albumin are soluble in water and coagulable by heat. 2) Globulins: These p

Vitellogenesis, Vitellogenesis Vitellogenesis is the stage where much ...

Vitellogenesis Vitellogenesis is the stage where much of the oocyte growth occurs. The completion of second maturation division (meiosis), which may occur after ovulation, res

Atypical distribution of pleural fluid, Q. Atypical Distribution of Pleural...

Q. Atypical Distribution of Pleural Fluid? i) Lamellar effusion: These are shallow collections of fluid between the chest wall and the lung surface. ii) Subpulmonic

For many of the mammalian hox genes, For many of the mammalian Hox genes, i...

For many of the mammalian Hox genes, it has been possible to determine that some of them are more similar to one of the insect HOM-C genes than to the others. Describe an experimen

Define the recommended dietary allowances of vitamin k, Define the Recommen...

Define the Recommended Dietary Allowances of Vitamin K? Recommended dietary intakes have not been suggested for different age groups or gentler. The safe levels of intake have

What is the importance of vitamin B6, What is the Importance of vitamin B 6...

What is the Importance of vitamin B 6 In the human and animal organisms, vitamin B 6 acts in the form of pyridoxal. In the form of 5'-orthophosphate (Pyridoxal-5'-phosphate),

What is density-dependent and density-independent factors, What is Density-...

What is Density-dependent and density-independent Factors? Density-dependent : Ecologists identify population-regulating mechanisms whose functioning is related to density a

What is cold-shortening, What is cold-shortening It is important to poi...

What is cold-shortening It is important to point out that over-effective chilling of hot carcasses can lead to toughness. If the temperature of the meat (muscles) can be reduce

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages