HUMAN PHYSICOLOGY
15th Edition
ISBN: 9781260722000
Author: Fox
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 9, Problem 12RA
A drug that serves as an agonist for ai receptors can be used to
a. increase the heart rate.
b. decrease the heart rate.
c. dilate the bronchioles.
d. constrict the bronchioles.
e. constrict the blood vessels.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Tissue plasminogen activator (tPA) is helpful in reducing the effect of a stroke only under which of these conditions?A. It is helpful only if the stroke was due to a hemorrhage.B. It is helpful only if administered within the first hours after a stroke.C. It is helpful only if the patient practices relevant movements while taking the drug.D. It is effective only for laboratory animals, not for humans.
The atrioventricular node is located in the:
A. right atrium
B. right ventricle
C. septum between the right and left atrium
D. juncture between the right atrium and ventricle
Preganglionic parasympathetic neurons release NT that binds to:
A. nicotinic acetylcholine ligand-gated receptors
B. muscarinic acetylcholine GPCRs
C. beta-1 norepinephrine GPCRs
D. norepinephrine ligand-gated receptors
A stroke results froma. hemorrhage in the brain.b. a blockage of a blood vessel in the brain.c. a deficiency of tissue plasminogen activator.d. Both a and b are correct.
Chapter 9 Solutions
HUMAN PHYSICOLOGY
Ch. 9 - Describe the preganglionic and postganglionic...Ch. 9 - Compare the control of cardiac muscle and smooth...Ch. 9 - Describe the sympathetic pathway from the CNS to...Ch. 9 - Prob. 4CPCh. 9 - Prob. 5CPCh. 9 - Prob. 6CPCh. 9 - Prob. 7CPCh. 9 - Prob. 8CPCh. 9 - Explain how the effects of the sympathetic and...Ch. 9 - Prob. 1RA
Ch. 9 - Prob. 2RACh. 9 - Prob. 3RACh. 9 - Prob. 4RACh. 9 - Which of these fibers release norepinephrine? a....Ch. 9 - Prob. 6RACh. 9 - Prob. 7RACh. 9 - Prob. 8RACh. 9 - Prob. 9RACh. 9 - Prob. 10RACh. 9 - Prob. 11RACh. 9 - A drug that serves as an agonist for ai receptors...Ch. 9 - Prob. 13RACh. 9 - Prob. 14RACh. 9 - Compare the effects of adrenergic and cholinergic...Ch. 9 - Prob. 16RACh. 9 - Prob. 17RACh. 9 - Prob. 18RACh. 9 - Prob. 19RACh. 9 - Prob. 20RACh. 9 - Prob. 21RACh. 9 - Prob. 22RACh. 9 - Prob. 23RACh. 9 - Prob. 24RACh. 9 - Prob. 25RACh. 9 - Prob. 26RACh. 9 - Prob. 27RACh. 9 - Prob. 28RACh. 9 - Prob. 29RACh. 9 - Prob. 30RACh. 9 - Refer to table 7.3 to obtain axon diameters and...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Define the following terms: a. AMPK b. ACP c. SREBP d. PPAR e. atherosclerosisarrow_forwardWhich neurotransmitter/target receptor combinations would you expect to find in these areas of the heart?( note: you may have more than one answer for each question. Some may not be used.) a. ACh on nicotinic receptors B. ACh on muscarinic receptors C. Epi on B2 receptors D. NE or EPI on Alpha 1 receptors E. NE or EPI on B1 receptors 1. SA node 2. AV node 3. Ventricular Myocardiumarrow_forwardDuring strenuous exercise, which of the following changes most influences total peripheral resistance?A. Decreased blood viscosityB. Decreased Sympathetic cholinergic activityC. Increased sympathetic adrenergic activityD. Vasodilation in skeletal musclearrow_forward
- During surgery, the right vagus nerve was accidently cut. Explain the effect on the heart rate. a. There is no change to the heart rate because the vagus nerve does not innervate the heart. b. The heart rate increases to the inherent rhythm of SA nodal cells. c. The heart stops beating, and the heart rate becomes zero. d. The heart rate decreases to the inherent rhythm of SA nodal cells.arrow_forwardpsychoactive compounds in cannabis act on the CB1 receptor, the endocannabinoid that binds to this receptor is called: Select one: a. nitric oxide b. a Gi protein c. anandamide d. THC e. all of theses are endocannabinoids.arrow_forwarda calcium channel blocker or an antagonist drug will produce a. vasoconstriction b. increase in blood pressure c. increase in total peripheral resistance d. reduction in cardiac muscle contractilityarrow_forward
- Which of the following statements is false? a. The sympathetic nervous system releases epinephrine and norepinephrine, which are positive chronotropic and inotropic agents. b. The endocrine system regulates cardiac output through chronotropic and inotropic hormones and through hormones that regulate water balance .c. The parasympathetic nervous system releases acetylcholine,which is a strongly negative inotropic agent. d. Factors such as electrolyte concentrations, body temperature,and age all affect cardiac output.arrow_forwardThe relative intensities of the bands in Lane (3) as compared to Lane (1) have ______________ because the specific activity of PX-HA ______________ following affinity chromatography. A. decreased; increases B. increased; increases C. decreased; decreases D. decreased; increases E. remained unchanged; does not changearrow_forwardA sudden increase in blood pressurea. initiates a sympathetic reflex that decreases heart rate.b. initiates a local reflex that decreases heart rate.c. initiates a parasympathetic reflex that decreases heart rate.d. Both a and b are correct.e. Both b and c are correct.arrow_forward
- Morphine sulfate via intravenous patient-controlled analgesia (PCA) pump is prescribed for a client with severe chronic back pain. Thirty minutes after initiating the PCA pump, the practical nurse (PN) notes that the client has become lethargic. Which action should the PN take? A Reinforce PCA pump teaching. B Check the IV insertion site for swelling. C Determine the client's pain scale rating. D Measure the client's vital signs.arrow_forwardVasodilation in the heart and skeletal muscles during exercise is primarily due to the effects of a. alpha-adrenergic stimulation. b. beta-adrenergic stimulation. c. cholinergic stimulation. d. products released by the exercising muscle cells.arrow_forwardWhich of the following is true about the pacemaker potential in the heart? a. Decreased K+ efflux causes the resting membrane potential to increase b. Action potential occurs when T-type Ca2+ channels open c. Only the SA node in the heart has a pacemaker potential d. The atrioventricular node is needed to pace the sinoatrial node e. None of the options are truearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBasic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
The Cardiovascular System: An Overview; Author: Strong Medicine;https://www.youtube.com/watch?v=Wu18mpI_62s;License: Standard youtube license