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Warm-Up: January 21, 2011

Warm-Up: January 21, 2011. Which of these biomes is closest to the equator? Taiga Desert Savanna temperate deciduous forest. Activator. Has a doctor ever felt your neck or jaw when you were sick. What is the doctor checking for. EQ - How do the functions of organ systems interact?. TWL

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Warm-Up: January 21, 2011

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  1. Warm-Up: January 21, 2011 Which of these biomes is closest to the equator? • Taiga • Desert • Savanna • temperate deciduous forest

  2. Activator • Has a doctor ever felt your neck or jaw when you were sick. What is the doctor checking for.

  3. EQ - How do the functions of organ systems interact? TWL Today I will learn about the lymphatic system because it helps your body fight pathogens.

  4. Integumentary System

  5. Integumentary System Is made up of the skin, hair, and nails. Function: it protects your body and helps maintain homeostasis.

  6. Skin Four functions Keeps water in the body and keeps foreign particles out of the body. Helps you touch the outside world with nerve endings in the skin Helps regulate body temperature through sweat glands Helps get rid of waste

  7. Layers of Skin Epidermis: the outermost layer of the skin. Dermis: the thicker layer of skin that lines beneath the epidermis.

  8. Hair and Nails Hair: helps protect the skin from ultraviolet light. It also helps keep particles out of your eyes and nose. Nails protect the tips of your fingers and toes.

  9. Skin Injuries Skin cancer: can be caused by damage to the genetic material in skin cells. Skin may also be affected by hormones that cause oil glands to produce too much oil. The oil, dead skin cells, and bacteria can clog the hair follicles.

  10. Lymphatic System

  11. The lymphatic system is the group of vessels, organs, and tissues that collects excess fluid and returns it to the blood. • The lymphatic system also helps your body fight pathogens.

  12. LYMPH CAPILLARIES • Lymph capillaries absorb some of the fluid and particles from between cells in the body. • The fluid and particles absorbed into lymph capillaries are called lymph

  13. LYMPHATIC VESSELS • Lymphatic vessels drain the lymph into large veins in the neck. • This returns the fluid to the cardiovascular system.

  14. BONE MARROW • Bone marrow is the soft tissue inside bones that makes red and white blood cells. • White blood cells called lymphocytes help fight infection.

  15. LYMPH NODES • Lymph nodes are small masses of tissue that remove pathogens and dead cells from the lymph.

  16. THYMUS • Thymus is a gland that produces T cells that are ready to fight infection.

  17. SPLEEN • The spleen may release lymphocytes into the bloodstream when there is an infection. • The spleen also monitors, stores, and destroys old blood cells

  18. TONSILS • The tonsils are lymphatic tissue at the back of the mouth. • Tonsils help defend the body against infection by trapping pathogens

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