hypercholesterlemia is a genetic diease that affects 1 out of 500 people worldwide. this is more that one genetic cause of the disease. Class 1 is described as an autosome dominant disease. those affected have cholesterol levels>250 as children and >300 as adults. homozygotes have cholesterol levelts of >600 as […]

Q. A 22- year old man was in a motorcycle accident with resultant neck injuries that led to partial paralysis of the upper and lower limbs. Almost immediately his chest felt heavy and he became dyspneic. His pulmonary values: Vital capacity (supine) = 650 mlMinute ventilation (supine) = 6 L/minRespiratory […]

As you travel up a mountain in your car, you notice that your hearing diminishes. You realize that your ears are stopping up, and you swallow several time to clear them. Why does this happen? A) your tympanic membrane gets washed off by your saliva. B) swallowing equalizes the pressure […]

Some individuals who are depressed have an abnormally small amount of the neurotransmitter serotonin at certain synapses in the brain.  One category of antidepressant drugs is called selective serotonin reuptake inhibitors.  Can you deduce what action this drug has at a synapse to increase the amount of serotonin present in […]