Transmission of Diseases

Transmission of Disease

Maintain an infectious disease in a human population the pathogens must need to be transmitted from one host or source to another. In Biology the term transmission is refers to the passing of a pathogen from one individual to another individual which can cause a serious disease or infection. The transmission of disease is occurred … Read more

Antimicrobial Agent and Chemotherapy

Antimicrobial Agent and Chemotherapy

Definition of Antimicrobial Agent Antimicrobial agent refers to those chemical or physical agents which are used to kill microorganisms or prevent their growth. There are present several types of microorganism which are responsible for infection or disease in animal or human body such as fungi, bacteria, virus, etc. Similarly, there are present different types of … Read more

Pseudostratified Columnar Epithelium – Definition, Structure, Function, Types

Pseudostratified Columnar Epithelium - Definition, Structure, Function, Types

Definition of Pseudostratified columnar epithelium  A pseudostratified columnar epithelium an epithelium made up of only one layer of cells which creates the appearance of multiple layers due to the nuclei in the cells are located at various levels. It is histologically an epithelium that is simple, even though when viewed from a cross-section it could … Read more

Signal Transduction Pathway – Definition, Types, Functions, Examples

Signal Transduction Pathway - Definition, Types, Functions, Examples

What is a Signal Transduction Pathway? Definition of Signal Transduction Pathway A signal transduction pathway is a series of molecular events inside a cell that converts an external signal into a specific cellular response. Components of signal transduction Signal transduction involves several key components that are common in both plants and animals. These components include: … Read more

Pathogen Virulence Factors Definition and Pathogenicity

Virulence Factors

Virulence Definition Virulence define the intensity of a pathogen to cause disease. The Virulence varies among different microbial species. Virulence enables the microorganism to carry a specific character which can damage the tissue of the host cell. Virulence helps the microorganism to better survive its residency in the host. The virulence property of an organism varies … Read more

Antibiotics definition, Characteristics, Classification, Administration

Antibiotics definition, Characteristics, Classification, Administration

Medicinal folklore was the primary treatment procedure for infections before the early 20th century. Over 2,000 years ago, a mixture of different antimicrobial properties was used to treat infections.  The ancient Egyptians and ancient Greeks, and other ancient cultures used selected mold and plant materials for the treatment of infections. After the discovery of synthetic … Read more

Antiviral Drug – Mode of Action

Antiviral Drug - Mode of Action

Antiviral drug referred to those drugs or chemical agents that are used for the treatment of viral infection. There are present several types of antiviral drugs that are used for the treatment of viral infections such as Amantadine, Acyclovir, Azidothymidine, Ganciclovir, Abacavir. Each of these antiviral drugs follows a different mechanism. The variation in their … Read more

Human Circulatory Circuit – Definition, Characteristics, Types, Importance

Human Circulatory Circuit - Definition, Characteristics, Types, Importance

What is Human Circulatory Circuit? Definition of Human Circulatory Circuit The human circulatory circuit, also known as the cardiovascular system, is a complex network comprising the heart and blood vessels that facilitate the continuous flow of blood throughout the body, ensuring the transport of oxygen, nutrients, and waste products to and from cells. This system … Read more

Human Circulatory System – Definition, Structure, Organs, Functions

Human Circulatory System - Definition, Structure, Organs, Functions

What is Human Circulatory System? Definition of Human Circulatory System The human circulatory system is a complex network of blood vessels, including arteries, veins, and capillaries, driven by the heart, responsible for transporting nutrients, oxygen, hormones, and waste products throughout the body. Features of Circulatory System The human circulatory system, a cornerstone of physiological functionality, … Read more

Blood Pressure – Definition, Types, Measurement, Disorders

Blood Pressure - Definition, Types, Measurement, Disorders

What is Blood Pressure? Definition of Blood Pressure Blood pressure is the force exerted by circulating blood against the walls of the arteries, measured in terms of systolic and diastolic pressures during the cardiac cycle. Types of Blood Pressure Blood pressure, a critical physiological parameter, is the force exerted by circulating blood against the walls … Read more

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