CELLS,TISSUE,ORGANS,ORGAN SYSTEMS, ORGANISMS

• Cells- basic structure and function of living things
• Tissues- made up of cells which work together to perform specific activities
• Organs- made up of tissues. Examples- heart and brain
• Organ Systems- groups of two or more tissues that will perform a specific function for organisms
• Organisms- living things that carry out basic life process. They can take in materials, energy from food, and wastes.

SKELETAL/ MUSCULAR

• Muscular- the muscular system is responsible for movement in body
• Skeletal- provides movement, support, blood cell production, etc

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INTEGUMENTARY SYSTEM

• Provides protective covering
• Maintains homeostasis
• Epidermis (outer layer)
• Dermis (inner layer)
• Hypodermis (beneath dermis)
• The hypodermis is not a true layer of skin
• The hypodermis is loose connective tissue that binds the skin to the underlying organs

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CIRCULATORY

• An organ system that provides nutrients from circulated blood to body for nourishments

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RESPIRATORY

• The respiratory system is used to pull in oxygen for the lungs

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DIGESTIVES

• This system turns your food into nutrients and then turns the nutrients.
• It uses the nutrients for energy, growth, and cell repair

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NERVOUS

• Sends impulsive messages about the body to the brain
• Consists of the brain, spinal cord, sensory organs, and all the nerves that connect the organs

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ENDOCRINE

• The collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction sleep, mode, etc.

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EXCRETORY

• A passive biological system that removes excess and unnecessary t materials from body fluids of an organisms
• Helps maintain internal chemical homeostasis and prevents damage to body.

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REPRODUCTIVE

• Female- two ovaries that produce eggs and female sex hormones ( estrogen and progesterone) .
• When the ovaries release ovum ( mature eggs) they are released into the Fallopian tube
• Male- the scrotum controls temperature of the testicle. Testes produce sperm cells and sex hormones. Testosterone is male sex hormones. The urethra is the passageway for sperm and urine.

HOMEOSTASIS

• Is a term that describes both the survival organisms in ecosystem and to describe the successful survival of cells inside of an organism
• Internal environment kept stable regardless of external enviroment