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Organ Systems

Organ Systems. Dr. Lui McSneeri. Digestive System. Description: Supplies the fuel that keeps all the body’s cells running and the building blocks needed for cell growth and repair. Digestive System. Concepts Consists of cells and organs from the mouth to the intestine, muscular tube

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Organ Systems

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  1. Organ Systems Dr. Lui McSneeri

  2. Digestive System Description: Supplies the fuel that keeps all the body’s cells running and the building blocks needed for cell growth and repair.

  3. Digestive System Concepts • Consists of cells and organs from the mouth to the intestine, muscular tube • Works with circulatory and lymphatic systems • Consists of 6 functions: ingestion, mechanical processing digestion, secretion, absorption and excretion Vocabulary • Gastrointestinal tract • Alimentary canal • Peritoneal cavity

  4. Respiratory system Description: Composed of structures (organs) involved in ventilation and gas exchange

  5. Respiratory System Concepts: • Consists of 5 basic functions • Works with the circulatory system • Two major sections: • Upper respiratory system • Lower respiratory system Vocabulary: • Diffusion • Respiratory tract • External nares

  6. Lymphatic System Description: Responsible for the cells, tissues and organs which defend the body against environmental hazards (ex. pathogens) and internal threats (ex. cancer).

  7. Lymphatic System Concepts: • Works with immune and circulatory systems • Consists of a fluid which travels through the body in tubes similar to blood vessels • 3 different types of cells Vocabulary: • Lymphocytes • Spleen • Lymph

  8. Urinary System Description: Removes metabolic wastes through the production of urine

  9. Urinary System Concepts: • 3 primary functions: excretion, elimination, homeostatic regulation • Works with the circulatory system • Muscular organs used for storage and the release of urine Vocabulary: • Kidneys • Vascular tissue • Nephrons

  10. Integumentary System Description: System is the outside covering consisting cells which protect the internal organs of the body (hair, skin, nails, internal glands)

  11. Integumentary System Concepts: • Consists of two major parts: epidermis and dermis • There are 8 basic functions of the skin • Works with the circulatory system Vocabulary: • Integument • Strata • Keratin

  12. Muscular System Description: Specialized cells which use chemical energy stored in nutrients to exert a pulling force on structures they are attached to; muscles to bones

  13. Muscular System Concepts: • Provide muscle tone, propel body fluids and food • Generate a heartbeat and distribute heat • 3 types: skeletal cardiac smooth Vocabulary: • Fast and slow twitch fibers • Motor neurons • Tendon—attach muscles to bone • Origin and insertion

  14. Circulatory System Description: Series of vessels (tubes) which transport blood, nutrients, gases, throughout the organism

  15. Circulatory System Concepts: • Consists of heart and vessels • Blood contains white and red cells and platelets • Double loop path (figure 8) Vocabulary: • Veins—carries blood toward the heart • Arteries—carries blood away from the heart • Pulmonary circuit • Systemic circuit

  16. Skeletal System Description: Organs support and protect soft tissues, provide points of attachment for muscles, house blood producing cells and store inorganic salts

  17. Skeletal System Concepts: • Size, shape and thickness relates to bone function • Bones are the organs • 4 types of bones: long, short, flat and irregular • Approx.. 206 bones +/- Vocabulary: • Epiphysis—ends of bones • 2 types: axial appendicular

  18. Nervous System Description: Functions by receiving information, deciding action and reacting to stimuli

  19. Nervous System Concepts: • Consists of two major regions; CNS– central nervous syst brain and spinal cord PNS—peripheral nervous syst outside of spinal cord • Uses system of connected nerves • Connected to muscles Vocabulary: • Somatic: • Autonomic • Neuron

  20. Endocrine System Description: Involves the production, regulation and distribution of hormones which act as chemical messengers regulating sleep, body temperature, hunger, gender development and stress management

  21. Endocrine System Concepts: • Helps preserve homeostasis by coordinating cellular activities • Works with nervous system • Control hormones which alter operations of targeted cells Vocabulary: • Hormones • Intracellular • Physiological

  22. Excretory system Description: Used to remove excess and unnecessary materials from an organism to help maintain homeostasis. These waste products are the result of metabolic processes and consist of a solid, liquid, gas and sweat.

  23. Excretory system Concepts: • Consists of several organs which filter and remove waste material • Works closely with the Endocrine and Circulatory system • Requires water to work properly Vocabulary: • Bile • Interstitial fluid • Amino acids

  24. Reproductive System Description: Ensures the continued existence of the species by producing, storing, nourishing and transporting functional male and female reproductive cells

  25. Reproductive System Concepts: • Asexual and sexual forms • External and internal forms of fertilization • Consists of accessory glands and organs and internal and external genitalia Vocabulary: • Gonads–produces male and female sex cells • Spermatogenesis • Oogenesis

  26. Immune System Description: The ability to fight infection, illness and disease

  27. Immune System Concepts: • 2 types: innate (nonspecific) adaptive (specific) • 2 forms of immunity: Active and Passive • Involves cellular and chemical interactions Vocabulary: • Phagocytes • Micro and Macro – phages • Pathogens • Antigens

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