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Integumentary System
Function: Serves as a barrier against infections and deformity; helps to regulate body temperature; provides protection against ultraviolet radiation from the sun.
Structure
- skin: Skin is the soft outer covering of vertebrates.
-H air travel: Hair is a thin biomaterial that grows from follicle

Respiratory System
Function: provides oxygen needed for cellular breathing and removes excess carbon dioxide from the body.
Structures
-Nose: a nose is a intumescence in vertebrates that houses the nostrils, or nares, which admit and expel air for cellular respiration in conjunction with the mouth.
-Trachea: the trachea, or windpipe, is a tube that connects the throat or larynx to the lungs, allowing the passage of air.
-Bronchi: A bronchus is a passage of airway in the respiratory tract that conducts air into the lungs.
-Bronchioles: The bronchioles or bronchiole are the first passageways by which the air passes with the nose or mouth to the air sacs of the lungs in which branches no longer contain cartilage or glands in their bomber

Digestive System
Function: converts food into simpler molecules that can be utilise by the cells of the body; absorbs food.




Structure
-Mouth: The mouth is the first raft of the alimentary canal that receives food and saliva.
-Pharynx: The human pharynx is the founder of the throat situated immediately posterior to the mouth and nasal bone cavity, and superior to the esophagus and larynx.
-Esophagus: The esophagus is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the back.
-Stomach: The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates, echinoderms, insects (mid-gut), and mollusks
-Small and large intestines: The pocketable intestine carries out most of the digestive process, absorbing nigh all of the nutrients...If you want to get a full essay, range it on our website: Orderessay



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