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HBS, Levels, Compare

7.12BCE Human Body Systems, Levels, & Comparing Functions

TermDefinition
INTEGUMENTARY SYSTEM Reacts to external environmental conditions & protects the body’s deeper tissues.
MUSCULAR SYSTEM Allows body to move & provides strength, balance, & warmth.
SKELETAL SYSTEM Holds organs in place, provides structural support, stores minerals, & generates new blood cells.
RESPIRATORY SYSTEM Breathing that supplies oxygen to the blood & gets rid of carbon dioxide.
CIRCULATORY SYSTEM Circulates blood through the body, supplies oxygen & nutrients, & removes waste.
NERVOUS SYSTEM Functions as the control center, coordinating all the actions & reactions.
ENDOCRINE SYSTEM Regulates the body by secreting hormones into the bloodstream; also controls growth, reproduction, & metabolism.
DIGESTIVE SYSTEM Group of organs that work together to break food down by physical & chemical processes into nutrients that the body can use.
EXCRETORY SYSTEM Filters, collects, & removes excess fluids & wastes from the bloodstream.
REPRODUCTIVE SYSTEM Male & female systems used to produce offspring.
IMMUNE/LYMPHATIC SYSTEM System of organs that protects the body from foreign substances & pathogenic organisms by producing the immune response.
BIOLOGICAL LEVELS OF ORGANIZATION Cell, Tissue, Organ, Organ System, Organism
Circulatory System - BLOOD VESSELS Like the CYTOPLASM - all materials travel through here from place to place.
Digestive System - STOMACH & INTESTINES Like the MITOCHONDRIA - makes usable energy from food.
Excretory System - KIDNEYS Like the LYSOSOME - breaks down and removes waste.
Integumentary System - SKIN Like the CELL MEMBRANE - covers us, keeps stuff in and out.
Nervous System - BRAIN Like the NUCLEUS - controls all of the activities.
Respiratory System - LUNGS Like the CHLOROPLAST - takes in needed gases.
Skeletal System - BONES Like the CELL WALL - gives shape and structure.
Urinary System - BLADDER Like the VACUOLE - stores water and waste.
CELL Basic structural and functional unit of living organisms.
TISSUE Large mass of similar cells that make up a part of an organism and perform the same specific function.
ORGAN Large collection of similar tissue that make up a part of an organism and performs a specific and specialized function of the body.
ORGAN SYSTEM Composed of several organs working together to perform specific and vital functions.
ORGANISM Individual form of life that is capable of growing, taking in nutrients, and usually reproducing (organ systems working together); self-contained living thing.
ORGANELLE Tiny cell structure that carries out a specific function within the cell.
POPULATION Group of individuals of the same species that live in the same area.
Created by: trauberk
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