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Week 11 Anatomy
Ch 31 Lymphatic system
| Question | Answer |
|---|---|
| What are the three main functions of the lymphatic system? | A: Fluid balance, immune defense, and fat absorption. |
| Q: What is lymph? | A: Clear fluid similar to plasma that carries white blood cells and drains through the lymphatic system. |
| Q: What structure collects lymph from most of the body and empties into the left subclavian vein? | A: Thoracic duct. |
| Q: What does the right lymphatic duct drain? | A: Right upper limb, right side of head, and right thorax. |
| Q: What is the cisterna chyli? | A: A sac-like structure at the base of the thoracic duct that collects lymph from the lower body. |
| Q: What are lymphatic capillaries and what is special about them? | A: Small, thin-walled vessels that begin in tissue spaces and allow one-way entry of interstitial fluid. |
| Q: What are lymph nodes and what do they do? | A: Small, bean-shaped filters that trap pathogens and house immune cells like lymphocytes. |
| Q: What are the main clusters of lymph nodes in the body? | A: Cervical, axillary, and inguinal. |
| Q: What organ filters blood, removes old red blood cells, and stores platelets? | A: The spleen. |
| Q: What is the main function of the thymus? | A: T-cell development and maturation. |
| Q: Which tonsils are located on either side of the throat and commonly removed in children? | A: Palatine tonsils. |
| Q: What type of tissue are the tonsils made of? | A: Lymphatic tissue. |
| Q: What type of lymphatic structure absorbs fat from the small intestine? | A: Lacteals. |
| Q: What is chyle? | A: Milky fluid made of lymph and emulsified fats absorbed by lacteals. |
| Q: What immune cells are found in lymph nodes? | A: Lymphocytes and macrophages. |
| Q: What keeps lymph moving in one direction through lymphatic vessels? | A: One-way valves and muscle contraction. |
| Q: What organ contains white pulp and red pulp? | A: The spleen. |
| Q: What does white pulp in the spleen do? | A: Contains lymphocytes and is involved in immune responses. |
| Q: What does red pulp in the spleen do? | A: Breaks down old red blood cells and stores blood. |
| What are Peyer's patches and where are they located? | A: Lymphatic nodules in the walls of the small intestine that monitor pathogens. |
Created by:
MichisMitchell
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