Endocrine System

Endocrine system is a collection of glands that work interdependently and produce hormones that regulate the body’s growth, metabolism, and sexual development and function. The Endocrine system influences almost every cell, organ, and function of our bodies. It is instrumental ..

Nervous System

The nervous system is made of two parts viz. Central Nervous System (CNS) and the Peripheral Nervous System (PNS). CNS is made of Brain {cerebrum, brainstem and cerebellum} and spinal cord. The PNS is made of nerves and neural ganglia. ..

Skeletal System and Muscles in Human Body

The main organs and tissues of the musculoskeletal system in humans are bones, cartilages and muscles. These systems provide support and protection to organs; maintain structure of the body; help in movement of organs and limbs; and store nutrients {muscles ..

Excretory System

Several kinds of wastes, including sweat, carbon dioxide gas, feces (stool), and urine are produced by our body. These wastes exit the body by Sweat is released through pores in the skin. Water vapor and carbon dioxide are exhaled from ..

Blood Related Diseases

Sickle-cell disease Sickle-cell disease (SCD) is an autosomal recessive genetic blood disorder with overdominance, characterized by red blood cells that assume an abnormal, rigid, sickle shape. Sickling decreases the cells’ flexibility and results in a risk of various complications. The ..

Types of Blood Cells

Blood comprises of around 9% of body mass in adult human. In an average man, blood is 90 milliliter per kg of body weight and in an average woman blood is 65 milliliter per kg of body weight. Its specific ..

Pulmonary and Systematic Circulation, Systole and Diastole; Arteries & Veins

The main components of human circulatory system include blood vessels (arteries, veins and capillaries), heart, blood, lymph and lymphatic system. Human Heart Human heart has four chambers viz. right atrium & right ventricle and left atrium & left ventricle through ..

Open & Closed Circulatory Systems

Circulatory system is responsible for movement of nutrients, gases and wastes within blood vessels. Open and Closed Circulatory Systems Circulatory system is not found in Porifera, Cnidaria, Platyhelminthes, Nematodes and Echinoderms. An open circulatory system is found in arthropods, gastropods, ..