Identify the item that has a pH farther away from that in a human cell:
a. milk
b. pure water
c. bleach
d. sea water
e. orange
E
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Which of the following is not found in the epidermis?
A. Stem cells B. Melanocytes C. Keratinocytes D. Tactile cells E. Fibroblasts
The most accepted current theory states that individuals with emphysema have a loss of elastic fibers due to proteases breaking them down. This causes the smaller airways, like small bronchioles and alveolar ducts, to collapse. This collapse leads to __________.
A. loss of air from the alveoli B. trapping of air in the tertiary bronchi C. trapping of air in the main stem bronchi D. trapping of air the alveoli
The annular, radial collateral, and ulnar collateral are all ligaments associated with the elbow joint.
Answer the following statement true (T) or false (F)
The function of upper motor neurons is to
A. directly excite skeletal muscle cells. B. excite or inhibit skeletal muscle cells. C. excite or inhibit lower motor neurons. D. excite motor portions of the thalamus. E. excite or inhibit motor portions of the cerebral cortex.