You're looking at your patient's complete blood count (CBC) and notice that he has a normal hematocrit but low hemoglobin. What is the most likely cause for this result?
A) iron-deficiency anemia
B) aplastic anemia
C) hemorrhagic anemia
D) renal anemia
E) hemolytic anemia
Answer: A) iron-deficiency anemia
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The conduction velocity of a nerve impulse is slower in myelinated fibers than in unmyelinated fibers because myelin acts as an insulator that slows down the flow of current
Indicate whether the statement is true or false
Kupffer cells lurk in the liver, searching for invaders. Where in the liver do they lurk?
A) hepatic sinusoids B) bile canaliculi C) perisinusoidal space D) lymph vessels E) interlobular septum
Hair cells that function as hearing receptors are located within the ________
A) external acoustic meatus (auditory tube) B) spiral organ of Corti C) oval window D) auricle E) ossicles
Of which categories of receptor types are nociceptors?
A. mechanoreceptors and photoreceptors B. chemoreceptors and proprioceptors C. mechanoreceptors and chemoreceptors D. chemoreceptors and photoreceptors