Blood Plasma| Definition, components and functions

IMG 20200809 163616 1

Blood plasma What is Blood plasma ? Blood consists of watery fluid which is  called plasma . It contains salts , enzymes and proteins. And it has antibodies that helps to  fight infection . Plasma is larger portion in blood ; nearly 55% . Even through blood appears red  when you see it outside the body but … Read more

Alveoli | Shape ,Types, Functions and Diseases

Alveoli Alveoli are an vital part of the respiration system whose function it’s  to exchange oxygen and carbon dioxide molecules to and from the bloodstream. Those tiny, balloon-shaped air sacs sit down at the end of the respiration tree and are arranged in clusters for the duration of the lungs.           … Read more

Physiology of digestive system

Physiology of digestive system is ultilized of food involves several processes , viz., Ingestion , digestion , absorption , assimilation , and egestion . Physiology of digestive system Ingestion Ingestion means taking food into the oral cavity through the mouth.  Both solid and liquid material are taken by human.Hands are used for this purpose by … Read more

Digestive glands in human body

Digestive glands in human body

Digestive glands in human body include salivary glands, gastric glands, liver, pancreas and intestinal glands.   Digestive glands  1. Salivary gland  There are three pairs of salivary glands: -parotid, sublingual and submaxillary or submandibular  (a) Parotid gland   These are the largest salivary glands.  They lie on the sides of the face, just below and in … Read more

Human digestive system

Human digestive system

☆  What is Human Digestive system ?  Human digestive system involves mechanical as well as chemical changes in the food taken. It involves breaking down of the complex organic food materials such as carbohydrates, proteins,lipids, nucleic acids, into simpler , smaller , soluble molecules.              ☆ Mechanical changes  involves breaking food into smaller … Read more

मानव श्वसन तंत्र

    ☆मानव श्वसन तंत्र क्या है?What is Respiratory system ?        मानव श्वसन तंत्र  एक अपचयी  प्रक्रिया है (भोजन को सरल रूप में तोड़ना) और जैव रासायनिक प्रक्रिया भी है। इसे “कार्बन डाइऑक्साइड में पर्यावरणीय ऑक्सीजन का आदान-प्रदान शरीर और बाहरी वातावरण के बीच होता है।”  दूसरे शब्दों में हम गैसों का आदान-प्रदान (अर्थात ऑक्सीजन … Read more

Difference between Breathing and Respiration

☆Difference between Breathing and Respiration Breathing ( ventilation)  1-It is a preliminary step for  respiration and is a physical process . It involves inspiration of fresh air and expiration of foul air.   2-  It does not release any energy. 3- It is  an extra cellular process.   4. It does not involve enzyme action.   5-Breathing mechanism … Read more

Respiratory system diseases and Control

Respiratory system diseases

☆Regulation/ Control of Respiratory system Respiratory system is under dual control : Nervous control and Chemical control.          Regulation of  Respiratory system diagram Regulation of Respiratory system Nervous control :- Normal quiet breathing occurs involuntarily. Humans breath about 12 times a minute , but their infants breathe about 44 times a minute . This … Read more