The pointed, inferior portion of the heart, known as the ________, rests on the diaphragm and is oriented toward the left hip
A) base
B) mediastinum
C) apex
D) pericardium
C
You might also like to view...
The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on ________.
A) the location of the tissue or organ with respect to the circulatory path B) the membrane potential of the cells of the target organ C) the presence of the appropriate receptors on the cells of the target tissue or organ D) nothing?all hormones of the human body are able to stimulate any and all cell types because hormones are powerful and nonspecific
Which is not found associated with cervical spinal nerves?
a. grey ramis b. white ramis c. sympathetic postganglionic fibers d. propriosensory fibers
The following are steps in the cell-mediated immune response. What is the correct sequence for these steps? 1. Several cycles of mitosis occur. 2. Antigen is engulfed and presented by a macrophage. 3. Cytotoxic T cells migrate to focus of infection. 4. T cells with specific receptors recognize the antigen. 5. T cells differentiate into cytotoxic T cells or T memory cells. 6. Cytotoxic T cells
release perforin and/or lymphotoxin. A) 4, 1, 5, 3, 6, 2 B) 2, 4, 1, 5, 3, 6 C) 1, 2, 4, 5, 3, 6 D) 3, 2, 4, 1, 5, 6 E) 3, 6, 4, 5, 1, 2
When blood glucose concentrations are elevated, the glucose molecules are __________.
a. catabolized for energy b. used for tissue repair c. used to build proteins d. all of the above