What does a megakaryocyte eventually become?

Figure 17.1Using Figure 17.1, match the following:Lymphocyte.

The pseudostratified ciliated columnar epithelium of the trachea ________.

Blind-end invaginations of tonsil epithelium that trap bacteria and particulate matter.

Figure 18.1Using Figure 18.1, match the following:Sinoatrial (SA) node.

If the innermost wall of a blood vessel is damaged, ________ begin(s) the repair by attaching to the damaged site.

The vocal ligaments are found in the

Lymph capillaries differ from blood capillaries in all of the following ways except that

The appendix is a narrow tube which traps microorganisms from the digestive tract, and these microorganisms enter its wall and activate memory lymphocytes for long-term immunity. Another immune organ that traps microorganisms is the

Which statement is the best reason for an elevated white blood cell count?