Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Chapter 15, Problem 32CTQ
The cardiovascular center is responsible for regulating the heart and blood vessels through homeostatic mechanisms. What tone does each component of the cardiovascular system have? What connections does the cardiovascular center invoke to keep these two systems in their resting tone?
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Medical practice is paying more attention to theautonomic system in considering disease states. Whywould autonomic tone be important in consideringcardiovascular disease?
Which of the following statements best describes the structure of the blood-brain barrier that provides its functional characteristics?
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Processes of astrocytes wrap tightly around capillaries in the brain
Tight junctions tightly seal endothelial cells of capillaries in the brain
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The basement membrane of the capillaries in the brain contains extremely small pores
Callisto survives the accident and goes to jail. Many years later she is found slumped in her cell, quite confused and with apparent paralysis in her right arm. When the jailer speaks to her, she is unable to produce any clear speech. Callisto can understand very simple sentences, and her sight is not affected. It is determined that she has a vascular occlusion (blockage) in her internal carotid artery. Callisto’s blood pressure is markedly lower than would be expected under physiological conditions.
Based on this information, how are these structures in brain affected (if they are). Provide justification. Short answers.
1. Broca's area
2. Right posterior cerebral artery
3. Autonomic nervous system
Chapter 15 Solutions
Anatomy & Physiology
Ch. 15 - Watch this video...Ch. 15 - Watch this video...Ch. 15 - Read this article...Ch. 15 - Watch this video...Ch. 15 - Watch this video...Ch. 15 - Watch this video...Ch. 15 - Which of these physiological changes would not be...Ch. 15 - Which type of fiber could be considered the...Ch. 15 - Which signaling molecule is most likely...Ch. 15 - Which of these cranial nerves contains...
Ch. 15 - Which of the following is not a target of a...Ch. 15 - Which of the following represents a sensory input...Ch. 15 - What is the term for a reflex that does not...Ch. 15 - What neurotransmitter will result in constriction...Ch. 15 - What gland produces a secretion that causes...Ch. 15 - Which of the following is an incorrect pairing?...Ch. 15 - Which of these locations in the forebrain is the...Ch. 15 - Which nerve projects to the hypothalamus to...Ch. 15 - What region of the limbic lobe is responsible for...Ch. 15 - What is another name for the preganglionic...Ch. 15 - What central fiber tract connects forebrain and...Ch. 15 - A drag that affects both divisions of the...Ch. 15 - A drug is called an agonist if it ________. blocks...Ch. 15 - Which type of drug would be an antidote to...Ch. 15 - Which kind of ding would have anti-anxiety...Ch. 15 - Which type of drug could be used to treat asthma...Ch. 15 - In the context of a lioness hunting on the...Ch. 15 - A target effector, such as the heart, receives...Ch. 15 - Damage to internal organs will present as pain...Ch. 15 - Medical practice is paying more attention to the...Ch. 15 - Horners syndrome is a condition that presents with...Ch. 15 - The cardiovascular center is responsible for...Ch. 15 - Why does smoking increase the risk of heart...Ch. 15 - Why might topical, cosmetic application of...
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- Which of the following muscarinic receptors would cause hyperpolarization when activated? Muscarinic receptor of sweat glands Muscarinic receptor of the heart Muscarinic receptor of airway smooth muscle O Muscarinic receptor of adrenal glandsarrow_forwardSympathetic tone causes which of the following? decrease in heart rate O activation of the lacrimal gland O increase in urinary tract activity O blood pressure to rise O reflex peristalsisarrow_forwardWhat are proprioceptors? Where are the three types found in the body?arrow_forward
- Why would the baroreceptors reflex not compensate for these changes? (select one). O The right heart is not innervated by the autonomic nervous system. Pulmonary vessels are not innervated by the autonomic nervous system. Baroreceptors only monitor arterial pressure in the systemic circulation. Parasympathetic signalling to pulmonary vessels will be equal to sympathetic signalling, therefore there will be no net autonomic effect.arrow_forwardALS stands for Amyotrophic Lateral Sclerosis. What does “amyotrophic” mean? What is happening to the body (physiologically) if it is experience “amyotrophic” changes?arrow_forwardWhich of the following would not be classified as part of the peripheral nervous system? Cranial nerve, spinal nerve, ganglion, gray ramus, or nerve track Which of the following terms might describe the receptor involved in detecting the pressure on the surface of your leg? exteroceptor mechanoreceptor visceroceptor a and b all of the above The structure of the eye than can change shape to focus light rays on the fovea centralis is the cornea iris vitreous body lens ora serrataarrow_forward
- Which of the following is correct about the sympathetic division of the autonomic nervous system? Select one: O A. sympathetic nerves exit the central nervous stem at the base of the brain and the sacral region of the spinal cord O B. the neurotransmitter released by postganglionic neurons is acetylcholine O C. the neurotransmitter released by postganglionic neurons is norepinephrine O D. sympathetic nerves form synapses in ganglia near or within an internal organ O E. sympathetic nerves typically exit the central nervous system and form ganglia located just outside the brainarrow_forwardWhich of the following is correct about the sympathetic division of the autonomic nervous system? Select one: O A. the neurotransmitter released by postganglionic neurons is norepinephrine O B. the neurotransmitter released by postganglionic neurons is acetylcholine O C. sympathetic nerves form synapses in ganglia near or within an internal organ O D. sympathetic nerves exit the central nervous system at the base of the brain and the sacral region of the spinal cord O E. sympathetic nerves typically exit the central nervous system and form ganglia located just outside the brainarrow_forwardIncreased blood pressure is detected by the baroreceptors in the carotid artery and aortic arch causing them to send action potentials to the medulla oblongata. What are the 2 main nerves that conduct action potentials from the baroreceptors to the medulla oblongata? a. vagus nerve and glossopharyngeal nerve b. facial nerve and glossopharyngeal nerve C. optic nerve and vagus nerve d. hypoglossal nerve and facial nervearrow_forward
- 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.arrow_forwardDilates blood vessel of the skin Increased sympathetic tone Decreased sympathetic tone Increased parasympathetic tone Decreased parasympathetic tonéarrow_forward1. Neural information traveling on the ventromedial, corticospinal, or rubrospinal tract" a. Is Sensory Information traveling on Afferent pathways b. Is Motor Information traveling on Efferent pathways c. Is Sensory information traveling Efferent Pathways d. Is Motor information traveling on afferent pathwaysarrow_forward
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