BIO132IntroReview.pdf - Anatomy and Physiology Review...

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Anatomy and Physiology Review Levels of Organization in the Human Body: 1. Chemical/ Molecular Level Atoms, the smallest stable unit of matter, form molecules The shape of the molecule determines its function 2. Cellular Level Molecules form organelles Each type of organelle performs a specific function Organelles together make up a cell, the smallest living unit 3. Tissue Level A tissue is a group of cells working together to perform one or more specific functions 4. Organ Level An organ is two or more tissues working together to perform several functions 5. Organ System Level An organ system involves the interaction of multiple organs to achieve common goals Integumentary System Protects against the environment and helps control body temperature Skeletal System Provides support, protects tissues, stores minerals, and makes blood Muscular System Produces movement and locomotion, provides support, and generates heat Nervous System
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