Lymphatic System
Chapter 16-Lymphatic System & Immunity
1. Explain the functions of the lymphatic system.
The lymphatic system functions to balance fluid, lipid absorption (via lacteals=lymph capillaries) and defense. It removes toxins/pathogens, fight infections and transports excess fluid in the interstitial spaces and returns it to the blood stream. Lacteals absorb digested fats from small intestines and transports it to venous circulation.
2. Trace the general pathway of lymph from the interstitial spaces to the bloodstream.
Lymphatic capillaries are found near the systemic and pulmonary capillary networks. From there it moves through lymph vessels into the lymph nodes. Then it returns to the lymph vessels and returns to the blood stream in difference places.
3. Distinguish between tissue fluid and lymph.
Lymph is tissue fluid that has entered into a lymphatic capillary.
4. Describe the primary functions of lymph.
Lymph transports foreign material and bacteria to the lymph nodes and returns protein to the blood that has leaked out of the capillaries.
5. Explain why physical exercise promotes lymphatic circulation.
The lymphatic circulation relies on contractions of skeletal muscles, breathing, and smooth muscles of the lymphatic trunks, which all assist in moving lymph through the body.
6. Explain how a lymphatic obstruction leads to edema.
Lymphatic System is always moving fluid through so the volume remains stable but if a blockage or obstruction occurs the fluid will back up and cause edema. An example is if a lymph node is removed due to cancer then the area may not drain properly causing edema.
7. Sketch a lymph node, and label its parts.
8. Describe the major body regions containing lymph nodes. The major body regions are the axillary region, inguinal region, the pelvic cavity, the abdominal cavity, the cervical region, the thoracic cavity, and the supratrochlear region.
9. Explain the functions of a lymph
1. Explain the functions of the lymphatic system.
The lymphatic system functions to balance fluid, lipid absorption (via lacteals=lymph capillaries) and defense. It removes toxins/pathogens, fight infections and transports excess fluid in the interstitial spaces and returns it to the blood stream. Lacteals absorb digested fats from small intestines and transports it to venous circulation.
2. Trace the general pathway of lymph from the interstitial spaces to the bloodstream.
Lymphatic capillaries are found near the systemic and pulmonary capillary networks. From there it moves through lymph vessels into the lymph nodes. Then it returns to the lymph vessels and returns to the blood stream in difference places.
3. Distinguish between tissue fluid and lymph.
Lymph is tissue fluid that has entered into a lymphatic capillary.
4. Describe the primary functions of lymph.
Lymph transports foreign material and bacteria to the lymph nodes and returns protein to the blood that has leaked out of the capillaries.
5. Explain why physical exercise promotes lymphatic circulation.
The lymphatic circulation relies on contractions of skeletal muscles, breathing, and smooth muscles of the lymphatic trunks, which all assist in moving lymph through the body.
6. Explain how a lymphatic obstruction leads to edema.
Lymphatic System is always moving fluid through so the volume remains stable but if a blockage or obstruction occurs the fluid will back up and cause edema. An example is if a lymph node is removed due to cancer then the area may not drain properly causing edema.
7. Sketch a lymph node, and label its parts.
8. Describe the major body regions containing lymph nodes. The major body regions are the axillary region, inguinal region, the pelvic cavity, the abdominal cavity, the cervical region, the thoracic cavity, and the supratrochlear region.
9. Explain the functions of a lymph