Levels of Structural Organization / Organ Systems

Created by Hosannaamariam 

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1) Chemical Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level

Name the different levels of structural Organization that make up the human body.

Chemical level

Atoms combine to form molecules

Cellular level

Cells are made up of molecules

Tissue level

Tissues consist of similar types of cells

Organ level

Organs are made up of different types of tissues

Organ system level

Organ systems consist of different organs that work together closely

Organismal level

The human organism is made up of many organ systems.

Integumentary system, Skeletal system, Muscular system, Nervous System, Endocrine system, Cardiovascular system, Lymphatic system/immunity, Respiratory system, Digestive system, Urinary system, Male/Female Reproductive system

List the 11 organ systems of the body, identify their components, and briefly explain the major functions of each system.

Skeletal System

Protects and supports body organs, and provides a framework the muscles use to cause movement. blood cells are formed within bones. Bones store minerals.

Muscular System

Allows manipulation of the enviroment, locomotion, and facial expression. Maintains posture, and produces heat.

Nervous System

As the fast-acting control system of the body, it responds to internal and external changes by activating appropriate muscles and glands.

Endocrine System

Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use (metabolism) by body cells.

Cardiovascular System

blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, waste, etc. *The heart pumps the blood*

Lymphatic System/Immunity

Picks up fluid leaked from blood vessels and returns it to blood. Disposes of debris in the _____ stream. Houses white blood cells _____ involved in immunity. The immune response mounts the attack against foreign substances within the body.

Respiratory system

Keeps blood constantly supplied with oxygen and removes carbon dioxide. The gaseous exchanges occur through the walls of the air sacs of the lungs.

Digestive system

Breaks down food into absorbable units that enter the blood for distribution to body cells. Indigestible foodstuffs are eliminated as feces.

Urinary system

Eliminates nitrogenous wastes from the body. Regulates water, electrolyte and acid-base balance of the blood.

Reproductive system

system of organs involved in producing offspring

List the 11 organ systems of the body, identify their components, and briefly explain the major functions of each system.

Integumentary system, Skeletal system, Muscular system, Nervous System, Endocrine system, Cardiovascular system, Lymphatic system/immunity, Respiratory system, Digestive system, Urinary system, Male/Female Reproductive system

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