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slega [8]
3 years ago
11

The pineal body secretes which hormone that maintains the body's internal clock, the 24-hour wake-sleep cycle, and regulates the

onset and duration of sleep?
a. oxytocin
b. calcitonin
c. melatonin
d. cortisol
Medicine
1 answer:
Viktor [21]3 years ago
8 0

Answer:

The correct answer to the question: The pineal body secretes which hormone that maintains the body´s internal clock, the 24-hour wake-sleep cycle, and regulates the onset and duration of sleep?, would be, C: Melatonin.

Explanation:

The process of sleep and wakefulness, also called the circadian cycle, its a pretty complex system that is controlled by several parts of the brain, but most importantly, structures of the diencephalon (vital is the hypothalamus), the pineal gland, and the stem of the brain. All these structures, and some others, respond to changes both in light perception by the eyes and other senses, heat, and homeostatic balances. These factor play a vital role in telling the human body that it is time for sleep, or to awaken. The pineal gland, as part of this melody, is essential, as it secretes the hormone, melatonin, in response to light changes. Melatonin will balance out the process of sleep, when it is secreted in high quantities by the pineal gland, and wakefulness, when it is no longer secreted in response to the presence of light. This is what is called the circadian cycle.

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#1 True or False: Body Growth and Brain Development in Infancy and Toddlerhood (pp. 162–174) Directions: Read each of the follow
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Since there are so many true and false questions, the answers and their short explanation, are as follows:

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2. False. The reverse is true. When skeletal age is used to measure body development, epsecially bone growth, it is African American children that have a slight advantage over their Caucasian counterparts.

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4. False. Young children, and especially infants, need to move, and are anxious in small spaces. both of these diagnostic procedures require the child to be static, and that is not possible. This is why EEG is a more common procedure to be used; it allows children to be sitting with their parents and to move.

5. True. The cerebral cortex continues growing from childhood into adolescence, and it develops more rapidly than any other region of the brain as it is the one that is most stimulated during those years.

6. False. The cerebral cortex has two hemispheres but each one specializes on certain activities. This does not mean that both do not colaborate in all tasks, but each has specialized tasks to perform.

7. True. Plasticity is a characteristic of the young brain. However, even during childhood, if injury occurs, this does not mean there will not be consequences. It just means that the brain is able to cope with the deficiency and establish mechanisms of compensation that the adult brain cannot do.

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lapo4ka [179]

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Andreyy89

Answer:

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Explanation:

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