Intro A&P: lymphatic and immune system function plus the special senses of vision, hearing, and balance.
45 cards · basic cards · AI-written, checked twice. Edit anything.
- What is lymph?
- Fluid that bathes cells and flows through the lymphatic system to return to blood.
- Where are lymph nodes primarily located?
- Throughout the body along lymphatic vessels, particularly in neck, armpits, groin, and abdomen.
- What is the primary function of lymph nodes?
- Filter lymph fluid and contain lymphocytes that fight infection.
- What is the thymus gland?
- Lymphoid organ where T cells mature; largest in infants and shrinks with age.
- What does the spleen do?
- Filters blood, removes old red blood cells, and stores white blood cells.
- Where are the palatine tonsils located?
- At the back of the throat (pharynx).
- What major vessel drains most lymph back into the bloodstream?
- The thoracic duct, which empties into the left subclavian vein.
- What are lymphatic capillaries?
- Blind-ended vessels that collect tissue fluid and form the beginning of the lymphatic system.
- What is the complement system?
- A group of plasma proteins that work with antibodies to destroy pathogens and promote inflammation.
- What do neutrophils do?
- Engulf and destroy bacteria and other pathogens through phagocytosis.
- Where do macrophages come from?
- Derived from monocytes; circulate in blood and settle in tissues.
- What is phagocytosis?
- The process where cells engulf and destroy pathogens or cellular debris.
- What is the inflammatory response?
- Body's immediate reaction to infection or injury involving increased blood flow, swelling, and release of immune cells.
- What does histamine do during inflammation?
- Causes blood vessel dilation and increased permeability, allowing immune cells to reach affected tissue.
- What is the purpose of fever?
- Slows pathogen growth and enhances immune response.