In Alaska, the longest day of summer is over 20 hours. Predict how this would affect melatonin secretion.
A. Melatonin secretion would decrease due to the extended length of time an individual is exposed to sunlight.
B. Melatonin secretion would increase due to the extended length of time an individual is exposed to sunlight.
Answer: A
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Short reflexes of digestion involve the glossopharyngeal and vagus nerves
Indicate whether this statement is true or false.
From the receptor to their destination in the brain, most somatosensory signals travel by way of how many neurons?
A. Two B. Three C. Four D. Over ten
Indicate the statements that correctly describe partial thickness burns
What will be an ideal response?
Which of the following normally occurs when a doctor's reflex hammer taps a patient's patellar tendon?
A. Alpha motor neurons stimulate contraction of intrafusal fibers in extensor muscles. B. Alpha motor neurons stimulate contraction of extrafusal fibers in extensor muscles. C. Alpha motor neurons that innervate ipsilateral flexor muscles are stimulated. D. Inhibitory interneurons reduce action potential firing in alpha motor neurons to extrafusal fibers of extensor muscles. E. Golgi tendon organs in the patellar tendon stimulate the contraction of extrafusal fibers of extensor muscles.