190 ELEMENTS OF MAMMALIAN ANATOMY 



meters long is usually present. A failure of the lymphatics 

 to do their work results in dropsy. 



LABORATORY STUDIES AND SUGGESTIONS 



1. Which of the four parts of the lymphatic system are visible in your 

 specimen? 



2. Describe size and number of lymphatic glands in the mesentery. 



3. Describe the location of lymph glands present in any other portion of your 

 specimen. 



4. How do you distinguish a lymph gland from other glands? 



5. \\hat causes the lymph to flow in one direction only? 



6. What is meant by afiferent and efferent lymphatics? 



7. Which kind of blood-corpuscles are found within the lymph-vessels? 



8. From what regions does the thoracic duct receive the lymph? 



9. What glands receive the lymph from the thoracic limb? 



10. What glands receive the lymph from the pelvic limb? 



11. Describe location of spleen, thyreoid and thymus glands, and suprarenal 

 capsules by naming the organs with which they are in contact. 



12. Draw a cross-section of the spleen and label all features visible. 



13. Draw a cross-section of the suprarenal body and label parts. 



14. Tell what you know of the functions of the ductless glands." 



15. What is a gland? 



