Anatomy and Physiology - Access (Custom)
2nd Edition
ISBN: 9781259897429
Author: McKinley
Publisher: MCG
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Question
Chapter 15.5, Problem 17WDYL
Summary Introduction
To determine:
The possibility for the stimulation of adrenergic receptors to result in either vasodilation or vasoconstriction of the selected vessels of the blood.
Concept introduction:
There are cholinergic as well as adrenergic receptors. The signalling molecules like hormones or neurotransmitters are known as ligands as they get bound to the receptors. The ligands class, which bind to the receptors (adrenergic) in neurons is known as the monoamines or biogenic
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Chapter 15 Solutions
Anatomy and Physiology - Access (Custom)
Ch. 15.1 - What criterion is used to organize the nervous...Ch. 15.1 - Prob. 2WDYLCh. 15.1 - What CNS structure is the integration and command...Ch. 15.2 - Prob. 4WDYLCh. 15.2 - Describe the general anatomic differences in the...Ch. 15.2 - Prob. 6WDYLCh. 15.3 - Which four cranial nerves have a parasympathetic...Ch. 15.3 - What organs are innervated by the pelvic...Ch. 15.4 - Prob. 9WDYLCh. 15.4 - Prob. 10WDYL
Ch. 15.4 - Prob. 11WDYLCh. 15.4 - In what ways does the adrenal medulla pathway help...Ch. 15.5 - Prob. 13WDYLCh. 15.5 - Prob. 14WDYLCh. 15.5 - Prob. 15WDYLCh. 15.5 - Prob. 16WDYLCh. 15.5 - Prob. 17WDYLCh. 15.6 - Prob. 18WDYLCh. 15.6 - Prob. 19WDYLCh. 15.6 - Prob. 20WDYLCh. 15.6 - What are the body structures innervated by the...Ch. 15.7 - Prob. 22WDYLCh. 15.7 - Prob. 23WDYLCh. 15 - A splanchnic nerve in the sympathetic division of...Ch. 15 - Some parasympathetic preganglionic neuron cell...Ch. 15 - Prob. 3DYKBCh. 15 - Prob. 4DYKBCh. 15 - Sympathetic division preganglionic axons travel to...Ch. 15 - Prob. 6DYKBCh. 15 - Prob. 7DYKBCh. 15 - A sympathetic postganglionic axon is a. long and...Ch. 15 - Prob. 9DYKBCh. 15 - Prob. 10DYKBCh. 15 - Prob. 11DYKBCh. 15 - For the following ganglia, identify the location...Ch. 15 - Prob. 13DYKBCh. 15 - Prob. 14DYKBCh. 15 - Prob. 15DYKBCh. 15 - Prob. 16DYKBCh. 15 - Prob. 17DYKBCh. 15 - What may occur with the mass activation of the...Ch. 15 - Prob. 19DYKBCh. 15 - Prob. 20DYKBCh. 15 - Prob. 1CALCh. 15 - Arlene was in a heightened state of alertness well...Ch. 15 - George has hypertension (high blood pressure). His...Ch. 15 - Prob. 4CALCh. 15 - Prob. 5CALCh. 15 - Prob. 1CSLCh. 15 - When you were younger, your parents may have told...Ch. 15 - Prob. 3CSL
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- What physiological factors influence cerebral blood flow? How can this be changed during stress conditions? What are the major compensatory responses to acute blood loss? List the most important hormones involved. What is a major difference between chronic and acute blood loss? Give some examples.arrow_forwardWhat effect does sympathetic stimulation have on stroke volume if thevenous return remains constant? Dilation of the coronary blood vesselsoccurs in response to an increased heart rate and stroke volume. Explainthe functional advantage of that effect.arrow_forwardWhat are the major adrenergic receptors influenced by these nerves?arrow_forward
- Which of the following statements about α-adrenergic receptor is CORRECT? Select one: a. Activation of the receptor increases blood pressure. b. It is the target of acetylcholine. c. Activation of the receptor decreases heart rate. d. It is expressed predominantly in cardiac tissue. e. Activation of the receptor leads to systemic vasodilation.arrow_forwardHow does acetylcholine cause a decrease in heart rate?arrow_forwardSlow conduction in the atrioventricular node is associated with which of the following? Group of answer choices Prolonged PR interval Prolonged QRS interval Shortened QT interval Elevated ST segmentarrow_forward
- Following a large increase in sympathetic output from the vasomotor center, what tissues will get less blood (increased resistance, reduced flow), and which ones will continue to get plenty of flow? How is sympathetic control of skeletal muscle arterioles different from other vascular beds?arrow_forwardWHICH PART OF AUTONOMOUS NERVOUS SYSTEM INCREASES VASOCONSTRICTION? HOW DOES THAT CHANGE PERIPHEERAL RESISSTANCE AND BLOOD PRESSURE?arrow_forwardAmong the followings which does not indicate the stimulation of parasympathetic system? A. Contriction of skeletal muscle blood and vasodilation of renla blood B. Excitation of the blood flow to the kidneys and smooth muscles of Gl tract C. Inhibition of heart rate and amooth muscles of the urinary bladder Excitation of the smooth muscles of the urinary bladder and Gl tractarrow_forward
- In response to a severe hemorrhage, blood pressure lowers, the heart rate increases dramatically, and the stroke volume lowers. If low blood pressure activates a reflex that increases sympathetic stimulation of the heart, why is the stroke volume low?arrow_forwardWhat effect will an increase in sympathetic activity have on heart rate, force of contraction, and arteriolar diameter?arrow_forwardParasympathetic stimulation decreases the heart rate by Decreasing permeability of SA node cells to Ca2+ increasing ion influx, thus increasing the rate of depolarization. Increasing the permeability of SA node cells to Ca2+. Increasing the permeability of SA (sinoatrial) node cells to K+.arrow_forward
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