Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 8, Problem 9CR
Summary Introduction
To review:
A hormone that has a stimulatory effect on the heart.
Introduction:
Hormones are small molecules that are secreted by endocrine glands. They act as regulators of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Why, in physiological terms, does heart rate increase during exercise? Discuss contributions from the nervous and endocrine systems.
Name four ways in which the adrenaline signal to the heart is terminated.?
Choose whether the following are positive or negative inotropic agents.
positive
negative
inotropic inotropic
Agent
epinephrine
anoxia
Beta blockers
acidosis
digitalis
increased potassium
sympathetic stimulation
Calcium channel blockers
increased calcium
thyroid hormones
List 6 things (from your PowerPoint) that result in an increase in heart rate.
Chapter 8 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 8 -
1. Who do you want to help you decide which...Ch. 8 - Do you think cost-effectiveness should be a part...Ch. 8 -
1. Why is it so important that the heart always...Ch. 8 - Compare and contrast the structures and functions...Ch. 8 - Prob. 3CRCh. 8 - Describe the function of the heart valves.Ch. 8 - Compare the functions of the pulmonary circuit and...Ch. 8 -
6. Describe the cardiac cycle of relaxation and...Ch. 8 - Describe the function of the SA and AV nodes as...Ch. 8 - Prob. 8CR
Ch. 8 - Prob. 9CRCh. 8 - Prob. 10CRCh. 8 -
1. _______ carry blood away from the heart and...Ch. 8 - Prob. 2TYCh. 8 - Which of the choices represents the order of...Ch. 8 - Prob. 4TYCh. 8 - Prob. 5TYCh. 8 - Prob. 6TYCh. 8 - Prob. 7TYCh. 8 - A pacemaker is used to correct: a. coronary artery...Ch. 8 - Prob. 9TYCh. 8 - Prob. 10TYCh. 8 - Prob. 11TYCh. 8 - Prob. 12TYCh. 8 - Prob. 13TYCh. 8 - Prob. 14TYCh. 8 - Prob. 15TYCh. 8 - Prob. 1AWKCh. 8 - When a coronary artery bypass graft (CABG) is...Ch. 8 - Soldiers have to stand in formation at full...Ch. 8 - Prob. 4AWKCh. 8 - Prob. 5AWKCh. 8 - Ventricular fibrillation is a potentially fatal...Ch. 8 - Prob. 7AWKCh. 8 - Last night, you and your roommate were sound...
Knowledge Booster
Similar questions
- what is atropine competing with ? what is its effect on heart activity ?arrow_forwardWhich hormone does the heart produce and what is its function?arrow_forwardNorepinephrine acts on heart muscle cells by: Group of answer choices blocking the action of calcium. increasing heart contractility. causing a decrease in stroke volume. causing threshold to be reached more quickly. more than one of the above.arrow_forward
- Describe affect hormones and ions have on heartarrow_forwardWhich of the following combinations would have OPPOSITE effects in changing heart rate? atropine and norepinephrine atropine and a cholinesterase inhibitor epinephrine and norepinephrine acetylcholine and a cholinesterase inhibitorarrow_forwardwhich of the following are activated in order to increase blood pressure? Pick two answers: sympathetic nervous system, parasympathetic nervous system, adrenal gland.arrow_forward
- Norepinephrine is used to treat shock because it: O Raises blood pressure Lowers blood pressure Stops internal bleeding Prevents fainting 2O000arrow_forwardDescribe the mechanism of action of intravenous injection of epinephrine or norepinephrine. What effect is expected on heart rate and blood pressure? How it affects blood vessels and circulation?arrow_forwardA drug that blocks the cardiac muscarinic receptor might be expected to: Increased heart rate Decreased heart rate Open mechanically-gated K channels Decreased contractility Decrease pacemaker potentialarrow_forward
- Mr. Martin is suffering from a condition known as ventricular tachycardia, in which his heart beats too quickly. Would an alpha-blocker or a beta-blocker help alleviate his problem? Why?arrow_forwardDefine the following terms:a. prostaglandinb. thromboxanec. leukotriened. autocrinee. anaphylaxisarrow_forwardNorepinephrine binds to which of the following adrenergic receptors to speed up the heart? Select one: B2 adrenergic receptors x a1 adrenergic receptors a2 adrenergic receptors B3 adrenergic receptors B1 adrenergic receptorsarrow_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
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning