33. Which of the following statements are accurate about melatonin? a. Melatonin

Question

33. Which of the following statements are accurate about melatonin? a. Melatonin is a neurotransmitter responsible for muscle movement b. Melatonin is a bormone released by the adrenal gland c. Melatonin is released by the pineal gland in periods of darkness d. Sleep apnea is characterized by an excess of melatonin 34. Rods and cones are located on which part of the eye? a. Lens b.Retina c. Cornea d. Iris 35. Occasionally, Jon will fall asleep while working with acustomer.j experiencing which sleep disorder? a. sleep apnea b. insomnla c narcolepsy d paradoxical sleep 36. Stimulant drugs have al of the following effects EXCEPT: a. increased heart rate and blood pressure. b.improved mood. c. increased sleep d. increased mental concentration at low doses 37. Which of the following statements is most accurate regarding consdiousness? a. Stimuli can infiuence our thoughts even if they are experienced unconsciously. b. Unconscious dreams are the only form of the subconscdous that is capable of influencting our thoughts and actions c Unconsdous stimuli are rarely able to tnfiuence thoughts and actions d. The study of the effects of unconsdious stimuli on consciousness remains very mysterious to scientists and so far has been unable to be studied.

Explanation / Answer

33.Melatonin is a hormone made by the pineal gland,Normally, your body makes more melatonin at night. 34.The rods and cones are the photoreceptive cells of the retina, at the rear of the eye. The cones cells are responsible for color vision, and are most dense in the central portion of the retina, an area called the fovea. The rod cells are incapable of distinguishing color, but are more sensitive to light than the cones and so are responsible for vision in low-light situations 35.Narcolepsy,Symptoms include periods of excessive daytime sleepiness that usually last from seconds to minutes and may occur at any time. 36.Stimulant drugs have all of the following effects except increasing sleep 37.Stimuli can influence our thoughts even if they are experienced unconsciously is the most accurate

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