Explain how to use the mnemonic ABCD when checking for signs of skin cancer
When checking for signs of skin cancer one can take a careful look at the appearance of existing moles. The mnemonic ABCD assists with this process because each letter corresponds with a physical characteristic of moles. A stands for asymmetry (healthy moles appear symmetrical); B stands for border (healthy moles have a regular, well defined border); C stands for color (healthy moles have a single color); D stands for diameter (healthy moles have a diameter of less than 5 mm).
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The __________ distance is the effective diffusion distance for oxygen from the capillary into the surrounding tissue
Fill in the blank with the correct word.
The prevention of change, by ignoring minor variations and maintaining a normal range rather than a fixed value, is characteristic of
A) positive feedback. B) stimulus reinforcement. C) negative feedback. D) effector control. E) both positive and negative feedback loops.
What is the dialysis tubing simulating when demonstrating the function of the nephron?
A) Collecting duct B) Renal pelvis C) Filtration membrane D) Blood flow
The mammary glands are modified ________
A) ceruminous glands B) sebaceous glands C) areolar glands D) lacrimal glands E) sweat glands