The activation of olfactory receptors requires that the odorant become immersed in:
A) mucus. B) cerumen. C) saliva. D) blood.
Answer: A
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You are a veterinarian and a dog is brought in that has experienced a BB gun shot to the brain. The brain scan reveals damage to the septum of the limbic system. You need to explain this injury to the owners. Which of the following is true?
A. The septum is required for the expression of rage, with a damaged septum, this dog will always be docile and never aggressive. B. In a normal animal, the septum inhibits the amygdala. Without it, the dog will always be fearful and vicious. C. The septum of the limbic system is required for memory formation. The dog will be forever forgetful D. The septum of the limbic system is required to express affection, without it, the dog may be less affectionate. E. The septum of the limbic system is required for regulation of appetite. Without it, the dog may overeat.
Answer the following questions true (T) or false (F)
1. The osmotic pressure gradient, or the force of solutes in a solution, tends to push water away from the solution with the higher osmotic pressure, or the more concentrated solution, by osmosis. 2. Sensible water loss includes water lost through feces and urine while insensible water loss includes water lost through sweating and evaporation. 3. Metabolic water (or water of oxidation) amounts to a total gain of about 250 ml of water per day.
What occurs at the respiratory membrane?
A. mucus removes debris B. gas exchange between the air and blood takes place C. macrophages accumulate to remove debris D. gas exchange between the blood and tissues takes place
What type of receptors, found in the aorta and common carotids arteries, send information to the cardioregulatory center to control heart rate?
A. Baroreceptors B. Photoreceptors C. Nociceptors D. Proprioceptors