Frank gets into a brawl at a sports event and receives a broken nose. After the nose heals, he starts to have sinus headaches and discomfort in the area of his maxillae. What is probably the cause of Frank's discomfort?
Frank probably has a deviated septum as the result of his broken nose. In a deviated septum the cartilaginous portion of the septum is bent where it joins the bone. This condition often blocks the drainage of one or more sinuses with resulting sinus headaches, infections, and sinusitis.
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The area around the center of an atom, which contains negatively charged subatomic particles, is called the electron
A) cloud. B) nucleus. C) active site. D) buffering zone. E) double helix.
Answer the following statements true (T) or false (F)
1. The outer zone of the adrenal cortex secretes mineralocorticoids. 2. Cortisol is an example of a mineralocorticoid. 3. The adrenal medulla releases hormones that support and prolong the effects of the sympathetic nervous system. 4. Pancreatic alpha cells release glucagon. 5. Glucagon causes a reduction of the blood glucose concentration.
The pressure exerted by plasma proteins too large to pass through the wall of the capillary causes:
a. Fluid flow into and out of the capillaries b. Fluid to leave the cell and enter the interstitial space c. Nutrients to be released directly into the cells d. Waste products to be released directly into the plasma
A hypothetical genetic disease causes the body to produce antibodies that compete with acetylcholine for receptors on the motor end plate. Patients with this disease exhibit varying degrees of muscle weakness and flaccid paralysis in the affected
muscles. If you could administer a drug that inhibits acetylcholinesterase or a drug that blocks acetylcholine, which one would you use to alleviate these symptoms? What will be an ideal response?