Different systems in a human body

Immune System The immune system is our body's defense system against infections and diseases.

human body organs

Sometimes, even though you don't feel well while it's happening, your body is fighting illness. Two components of this system are the cardiovascular and lymphatic systems. When the bladder is full, urine is discharged through the urethra.

human body systems pdf

The excess food that the body doesn't need or can't digest is turned into waste and is eliminated from the body. Photo Credits.

Body systems and functions

Digestive juices and enzymes are secreted to break down the carbohydrates , fat , and protein in food. TL;DR Too Long; Didn't Read TL;DR Too Long; Didn't Read The human body comprises 12 distinct human body systems, and their functions reflect their names: cardiovascular, digestive, endocrine, immune, integumentary, lymphatic, muscular, nervous, reproductive, respiratory, skeletal and urinary. The primary bronchi branch off into even smaller bronchial tubes, or bronchioles. Each day, the kidneys process about quarts 50 gallons of blood to filter out about 2 quarts of waste and water Adults excrete about a quarter and a half 1. The urinary system includes the bladder, kidneys, urethra and ureters. It also distributes fluids and nutrients in the body and drains excess fluids and protein so that tissues do not swell. Regina Bailey is a science writer and educator who has covered biology for ThoughtCo since Skeletal muscles help the body move. The digestive system includes the esophagus, intestines, gallbladder, liver, mouth, pancreas, salivary glands and stomach. The lymphatic system is made up of a network of vessels that help circulate body fluids. The human heart is a responsible for pumping blood throughout our body.

Skeletal System The skeletal system is made up of bones, ligaments and tendons. The structures that support the integumentary system include skin, nails, hair, and sweat glands.

There are three types of response systems in the immune system: the anatomic response, the inflammatory response, and the immune response. It protects us from the outside world, and is our first defense against bacteria, viruses and other pathogens.

human body systems and their functions
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Your Body's Systems