14 Where necessary complete statements by inserting the miss

14. Where necessary, complete statements by inserting the missing words in the answer blanks. 1. For this journey, you will be miniaturized and injected into the external iliac artery and will be guided by a fluorescent 2. monitor into the bone marrow of the iliac bone. You will observe and report events of blood cell formation, also called 3. 12 seen there, and then move out of the bone into the cir culation to initiate and observe the process of blood clotting, 4. also called G20. Once in the bone marrow, you watch as several large dark-nucleated stem cells, or C3 begin to 5. divide and produce daughter cells. To your right, the daugh ter cells eventually formed have tiny cytoplasmic granules and 6. very peculiarly shaped nuclei that look like small masses of nuclear material connected by thin strands of nucleoplasm. 7. You have just witnessed the formation of a type of white blood cell called the You describe its appearance and 8. make a mental note to try to observe its activity later. Meanwhile you can tentatively report that this cell type func- 9. tions as a C50 to protect the body. At another site, daughter cells arising from the division of a stem cell are difficult to identify initially. As you continue to observe the cells, you see that they, ir turn, divide. Eventually some of their daughter cells eject their nuclei and flatten out to assume a disk shape. You assume that the kidneys must have released because those cells are CD That dark material filling their interior must be 82, because those cells function to transport LC92 in the blood.

Solution

1. hematopoiesis 2. coagulation 3. hemocytoblasts 4. leukocytes 5. phagocytes

6.platelets 7. kidney shaped 8. RBC 9. oxygen