Robert, a surfer, has a mole that has changed its shape and size. His doctor, applying the ABCD(E) rule, diagnosed a melanoma. What do the letters ABCD(E) represent?
What will be an ideal response?
Answer: A = asymmetry
B = border irregularity
C = color
D = diameter
E = elevation
You might also like to view...
Red Blood Cells:
1.contain DNA and RNA. 2.have a limited lifespan of about 120 days. 3.are capable of mitosis. 4.are produced in the plasma.
Conduction occurs along an axon because
A) inflow of Na+ triggers the adjacent channels to open. B) outflow of K+ triggers the adjacent channels to open. C) axonal transport "walks" voltage changes along the membrane. D) once Na+ enters the cell, the entire membrane depolarizes simultaneously.
Define the underlined terms in the following case study. A canine of moderate constitution presented at the clinic for extraction of a carnassial tooth. The owner reported a long-term history of coprophagy, compounded by recent reports of unthrifty behavior arising from canine herpesvirus. The canine was sedated for the extraction and sent home on antibiotics 1 T bid PO 7d
What will be an ideal response?
Which of the following is involved in the gradation of muscle contraction?
a. variation in the number of motor units activated b. variation in the frequency of action potentials initiated in each muscle fiber c. variation in the size of the action potentials initiated in each muscle fiber d. both (a) and (b) above. e. all of these answers.