Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 13, Problem 7CR
Summary Introduction
To review:
The rationale behind sensitivity of the pineal gland to the light despite its location deep within the brain.
Introduction:
The pineal gland is a small, pea-shaped endocrine gland. It is located deep in the brain in the roof of 3rd ventricle. The secretion from this gland, melatonin, is necessary to maintain the circadian cycle. The sensitivity of this gland to the light is necessary for the maintenance of the circadian cycle.
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Chapter 13 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 13 -
1. Why do you think that endocrine disruptors...Ch. 13 - Prob. 2QCCh. 13 - List the functions of the six hormones secreted by...Ch. 13 - Prob. 2CRCh. 13 - Prob. 3CRCh. 13 -
4. Define when you would call a norepinephrine a...Ch. 13 - Explain why a 30-year-old short person cannot be...Ch. 13 - Describe the function of the two hormones from the...Ch. 13 - Prob. 7CRCh. 13 - Prob. 8CR
Ch. 13 - Prob. 9CRCh. 13 - Prob. 10CRCh. 13 - _________ hormones enter target cells and bind to...Ch. 13 - Prob. 2TYCh. 13 - Prob. 3TYCh. 13 - Which two hormones most directly regulate...Ch. 13 - All of the following represent hormone pairs with...Ch. 13 - Prob. 6TYCh. 13 - Prob. 7TYCh. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - Prob. 10TYCh. 13 - Prob. 11TYCh. 13 -
12. Which of the following statements about...Ch. 13 - Prob. 13TYCh. 13 - Prob. 14TYCh. 13 - Which of the following would be triggered by a...Ch. 13 - Prob. 1AWKCh. 13 - Explain why an injection of epinephrine to combat...Ch. 13 - From what you read in section 13.5 draw the...Ch. 13 - Prob. 4AWKCh. 13 - Prob. 5AWKCh. 13 - A student finishes up the fall semester with...
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- Draw an anatomical diagram of a pituitary gland that compresses the optic chiasma, destroying the axons crossing through the midline of the structure. Label structures and highlight the axons/fibers that are impactedarrow_forwardA pituitary tumor can cause perceptual losses in the lateral vision field. The pituitary gland is located directly inferior to the hypothalamus. Why would this happen?arrow_forwardDescribe the process of retinal transduction. How are visual cues perceived at the cellular level?arrow_forward
- Describe the nervous system component of SAD by explaining how the nervous system is involved in interpreting light signals and sending this information to the pineal gland. Explain how deficiencies of light result in experiencing the symptoms of SADarrow_forwardDescribe the effects of light on the photoreceptors and explain how these effects influence the bipolar cells.arrow_forwardexplain why it is useful to have pain receptors?arrow_forward
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- Describe the effect on vision of a tumor in the hypothalamus or pituitary gland that compresses the optic chiasma, destroying the axons crossing through this structure.arrow_forwardThe correct pathway of activation (by sending neuronal signals) in the retina is bipolar cell - retinal ganglion cell - photoreceptor photoreceptor - retinal ganglion cell - bipolar cell retinal ganglion cell - bipolar cell - photoreceptor photoreceptor - bipolar cell - retinal ganglion cell O bipolar cell - photoreceptor - amacrine cellarrow_forwardExplain the Activation of the brain cortex in response to light?arrow_forward
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