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Figure 20-2 Cardiac CycleUse Figure 20-2 to answer the following questions:What is occurring in the left atrium at the circle labeled “2” on the graph?

Figure 20-2 Cardiac CycleUse Figure 20-2 to answer the following questions:What occurs at the area labeled “D” on the graph?

The adrenal medulla produces the hormones

The pancreatic hormone that causes blood sugar to enter its target cells is

The pancreatic hormone that causes blood sugar to enter its target cells is

The following are steps in the cell-mediated immune response. The correct sequence for these steps is i. Several cycles of mitosis occur. ii. Antigen is engulfed and presented by a macrophage. iii. Cytotoxic T cells migrate to focus of infection. iv. Undifferentiated T cells with specific receptors recognize the antigen. v. T cells differentiate into cytotoxic T cells and T memory cells. vi. Cytotoxic T cells release perforin and/or lymphotoxin.

The endocrine system regulates physiological processes through the binding of hormones to ________ on target cells.

Areas of the spleen that contain large numbers of lymphocytes are known as

Lymphocytes that when stimulated can differentiate into plasma cells and produce antibodies are called _____ cells

Which of the following is true about the atrial reflex?