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Exploring Human Body Systems: Levels of Organization, Tissues, and Organs

This educational guide delves into human body systems, exploring levels of organization from cells to organs, different types of tissues, and key organ systems like respiratory and excretory. Discover the functions of skeletal system components, respiratory structures, and excretory organs, along with diagrams and essential terminology.

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Exploring Human Body Systems: Levels of Organization, Tissues, and Organs

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  1. Human Body Systems

  2. Levels of Organization in the Body • Cells • Tissues • Epithelial, connective, muscular, nervous • Organs • Examples include stomach, liver, heart • Organ Systems • Examples include digestive and circulatory systems

  3. Tissues in the Human Body • Epithelial • Covering or lining tissue • Connective • Joins, stores and supports • Muscle • Internal and external movement • Nerve • Conducts electrical signals Blood Muscle Nerve

  4. Human Organ Systems Skeletal Muscular Circulatory Immune Respiratory Digestive Excretory Reproductive Nervous Endocrine Integumentary

  5. Human Skeletal System • Functions • Framework and support • Protection • Storage • Axial and appendicular skeleton • Bone structure • Joints and ligaments

  6. Skull Scapula Clavicle Humerus Sternum Ribs Ulna Radius Carpals Metacarpals Pelvis Phalanges Femur Patella Fibula Tibia Tarsals Metatarsals Human Skeleton Diagram Phalanges Phalanges

  7. Haversian system Blood vessels Osteocyte Compact Bone Tissue

  8. Human Respiratory System • Respiration is gas exchange between an organism and the environment • Respiratory structures include the nose, pharynx, larynx, trachea, bronchi, bronchioles and alveoli • Mechanics of Breathing • Respiratory Diseases Exhalation Inhalation

  9. Nasal Passage Pharynx Larynx Trachea Bronchus Bronchioles Alveoli Human Respiratory System Diagram

  10. Human Excretory System • Excretion is the removal of metabolic wastes from the body, including toxic chemicals, excess water, carbon dioxide and salts. • Excretory Organs • Skin • Lungs • Kidneys

  11. Nephron Kidney Kidney Ureter Urinary Bladder Urethra Human Urinary System Diagram

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