What is Inflammation? Causes, Features and Mediators of Inflammation

What is Inflammation? Definition

INFLAMMATION is a localized reaction of the body to injury. This basic pathological tends to localise or dispose of the injurious agent. All inflammatory conditions are described as "itis". e.g Sinusitis-Inflammation of sinuses, Arthritis - Inflammation of joints, etc. Inflammatory conditions are generally seen in injuries, infections or allergies.

What is Mechanism of Blood Clotting?

Mechanism of Blood Clotting

BLOOD CLOTTING MECHANISM

Calcium, Fibrinogen, Thromboplastin, are some of the substances needed before clotting occurs. The clotting process has the following steps:

1. Thromboplastin is released when a blood vessel and tissue cells are damaged. This triggers off a number of reactions.


2. Thromboplastin receives converted to Thrombin in the presence of Calcium ions.


3. Thrombin convert's fibrinogen to fibrin (soft clot with fine threads).


4. In the presence of Factor XIII, a hard clot is formed.


5. The fibrin threads enmesh the cells, and this combination obstructs the opening and stops the bleeding.

What is Blood? Composition and Function of Blood

What is Blood? Definition

BLOOD is a connective tissue. The total volume of blood constitutes approximately 8% of the body weight or 5.6 liters.

Composition of Blood

Composition of Blood

Blood is composed of a straw-coloured fluid like known as plasma and floating in this fluid are different types of cells or corpuscles. The main portions of the blood are mentioned below.

What is Tissue? Types and Function of Tissue

What is Tissue?

TISSUE is a collection of a large number of cells performing the same function.

Types and Function of Tissue

What is Directional Terms? Types of Directional Terms

What is Directional Terms?

Directional Terms: These terms are used to locate various parts of the human body to one another.

The following directional trems are given below:

What is Life Process of Human Body?

What is Life Process of Human Body?

LIFE PROCESS: Some of the important life processes in the human body are:

What is Body Cavity? Types of Body Cavities in Humans

What is Body Cavity?

BODY CAVITY are spaces inside the body, which help to protect, unyoke & support internal organs. Bones, ligaments and muscles classify body cavities from one another. There are mainly two-body cavities in humans as given below:

What is Human Body? Organisation of the Human Body

What is Human Body?

ANATOMY is the study of the structures of the human body, and the relationships between them.

PHYSIOLOGY is the study of the normal functions of the normal body.

ORGANISATION OF THE HUMAN BODY: The human body is comprised of several Semis of structural organizations listed below:

What is Cell? Meaning and Parts of Cell

What is Cell? Meaning

In terms of biology, cell is termed as the basic living structural and functional unit of all organisms.