Tushar Sir's Simplified Handmade Diagrams for Clear Understanding

Human Digestive System

Human beings are heterotrophic omnivore’s organisms. They obtain their food from plants, Animal and their products by holozoic mode of nutrition. Human digestive system consists of an alimentary canal and many digestive glands.

Alimentary canal is a long tube with muscular wall, glandular epithelial lining and varying diameter. It extends from mouth to the anal opening. Alimentary canal measures about 9 meter long tube in which duct of several digestive glands open to secretes their respective digestive secretions. Alimentary canal consists of several organs.

Human Excretory System

Excretory system of Human remains located in the abdominal cavity and consists of two kidney, two ureter, bladder and urethra.

Kidney of human is bean shaped and function is to remove the poisonous substance urea, other waste salts and excess water from blood and excrete them in form of yellow liquid called urine it is due to the presence urochrome pigment in urine. Thus kidney helps in filtering the blood and removes the toxic wastes in the form of urine throughout the body. Each of kidneys made up of large no of unit called Nephron: Each nephron consists of two parts. Malpighian body and tubular parts. And glomerulous while tubular portion consists of P.C.T. Loop of henel and the D.C.T.