Organ Systems
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14 Terms
Levels of Organization
Cells → tissues → organs → organ systems.
Basic Unit of Life
Cells are the basic unit of life.
Epithelial Tissue
Covers surfaces and lines cavities.
Connective Tissue
Supports and connects, includes bone, blood, and fat.
Muscle Tissue
Enables movement, consists of skeletal, cardiac, and smooth muscle.
Nervous Tissue
Sends and processes information through neurons and glia.
Integration and Coordination
Survival depends on the integration and coordination of all systems.
Endocrine System
Regulates through hormones, has slower responses.
Nervous System
Regulates through nerve signals, has faster responses.
Digestive and Circulatory Systems
Work together for nutrient absorption and transport.
Respiratory and Circulatory Systems
Work together for oxygen delivery and CO₂ removal.
Excretory and Circulatory Systems
Work together for waste filtration.
System Interdependence
Organ systems work together to perform essential life functions.
Control Systems
Endocrine and nervous systems work together to handle complex responses.