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- What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?Figure 35.26 Which of the following statements is false? The parasympathetic pathway is responsible for relaxing the body, while the sympathetic pathway is responsible for preparing for an emergency. Most preganglionic neurons in the sympathetic pathway originate in the spinal cord. Slowing of the heartbeat is a parasympathetic response. Parasympathetic neurons are responsible for releasing norepinephrine on the target organ, while sympathetic neurons are responsible for releasing acetylcholine.Visit this site (http://openstaxcollege.org/l/troublewstairs) to read about a woman that notices that her daughter is having trouble walking up the stairs. This leads to the discovery of a hereditary condition that affects the brain and spinal cord. The electromyography and MRI tests indicated deficiencies in the spinal cord and cerebellum, both of which are responsible for controlling coordinated movements. To what functional division of the nervous system would these structures belong?
- Watch this animation (http://openstaxcollege.org/l/CSFflow) that shows the flow of CSF through the brain and spinal cord, and how it originates from the ventricles and then spreads into the space within the meninges, where the fluids then move into the venous sinuses to return to the cardiovascular circulation. What are the structures that produce CSF and where are they found? How are the structures indicated in this animation?Watch this video (http://openstaxcollege.org/l/lumbarpuncture) that describes the procedure known as the lumbar puncture, a medical procedure used to sample the CSF. Because of the anatomy of the CNS, it is a relative safe location to insert a needle. Why is the lumbar puncture performed in the lower lumbar area of the vertebral column?What is maladaptive neuroplasticity? a. Neuroplasticity that affect the autonomic nervous system b. Neuroplasticity that has adverse effects c. Neuroplasticity that only last a short time d. Neuroplasticity that is dormant and cannot be activated
- When comparing the Parasympathetic and Sympathetic systems, what conclusion can be reached with respect to many of the organs and their functions shown in Model 1?Imagine that you're hiking in the mountains one afternoon with friends. As you turn to the corner, you come across a mother bear and her cubs standing in the middle of the trail. A. Identify the specific division of the nervous system that is responsible that is responsible for the body's response to this situation. Explain B. Describe at least four physiological responses you might have upon seeing the bears. C. Indicate the division of the nervous system that is responsible for returning the body back to equilibrium after the event is over ExplainDescribe the sympathetic response in a frightening situationfor each of the following body parts: hair follicles, iris of eye,lungs, spleen, adrenal medullae, urinary bladder, stomach,intestines, gallbladder, liver, heart, arterioles of the abdominalviscera, and arterioles of skeletal muscles.
- Make an organizational chart showing the CNS, PNS, brain, spinalcord, spinal nerves, cranial nerves, forebrain, brainstem, cerebrum,diencephalon, midbrain, pons, medulla oblongata, and cerebellum?Why is it difficult to identify the cause of many nervous system disorders? a. The genes associated with the diseases are not known. b. There are no obvious defects in brain structure. c. The onset and display of symptoms varies between patients. d. all of the above1. Which structures respond to threats? a.hippocampus b.hypothalamus c. immune system d. a, b, & c