14. Autonomic Nervous System

Cholinergic and adrenergic fibers

Neurotransmitters and Receptors

Adrenergic (adrenaline/epinephrine) Receptors

Cholinergic Drugs - Pharmacology, Animation

 Norepinephrine is used as a neurotransmitter by postganglionic sympathetic neurons. It is also a hormone secreted into the blood by the medullary cell in the adrenal gland in response to preganglionic sympathetic fiber stimulation. 

 Which of the following substances is a hormone and a neurotransmitter? 

 The major neurotransmitters released by ANS neurons are acetylcholine and norepinephrine. 

 __________ and __________ are the major neurotransmitters released by autonomic nervous system neurons. 

Parasympathetic Nervous System

Sympathetic Nervous System

Cholinergic Receptors

Why This Matters

 All preganglionic fibers release acetylcholine. 

 Which of the following neurotransmitters would be the only secretion of the sympathetic preganglionic fibers of the autonomic nervous system? 

 All somatic motor neurons release acetylcholine (ACh) at their synapses with skeletal muscle fibers. The effect is always excitatory, and if stimulation reaches threshold, the muscle fibers contract. 

 Which of the following is released by all somatic motor neurons at their synapses and always has an excitatory effect on skeletal muscle? 

 Postganglionic neurons of the sympathetic division of the autonomic nervous system secrete norepinephrine. 

 Which of the following neurons secrete norepinephrine? 

 an increase in rate and a decrease in force 

 Sympathetic fibers innervating the heart secrete norepinephrine (NE), which binds to beta-adrenergic receptors, prodding the heart into more vigorous activity. 

 a decrease in rate and an increase in force 

 Neurotransmitters released by sympathetic postganglionic fibers going to the heart would cause __________.  

Adrenergic Drugs - Pharmacology, Animation

 Norepinephrine (NE) and epinephrine can have either excitatory or inhibitory effects on target organs depending on which subclass of receptor predominates in that organ. 

 Norepinephrine and epinephrine can have either excitatory or inhibitory effects on target organs.  

Learn the toughest concepts covered in Anatomy & Physiology 1&2 with step-by-step video tutorials and practice problems by world-class tutors



Anatomy & Physiology

https://static.studychannel.pearsonprd.tech/courses/anp/thumbnails/anp

#FFFFFF

Dr Matt & Dr Mike

Crash Course Anatomy & Physiology

Alila Medical Media

1. Introduction to A&P

2. Chemistry

3. Cells

4. Tissues

5. Integumentary System

6. Bones + Skeletal Tissues

7. Skeletal System

8. Joints

9. Muscles and Muscle Tissue

10. Muscular System

11. Nervous Tissue

12. Central Nervous System

13. Peripheral Nervous System

15. Special Senses

16. Endocrine System

17. Blood

18. Cardiovascular System: the Heart

19. Cardiovascular System: Blood Vessels

20. Lymphatic System

21. Immune System

22. Respiratory System

23. Digestive System

24. Nutrition, Metabolism, Energy Balance

25. Urinary System

26. Fluid and Electrolyte Balance, Acid Base Balance

27. Reproductive System

28. Pregnancy and Human Development

29. Heredity

undefined - Channels

Components of a reflex arc 

Contrast stretch, flexor, crossed-extensor, and tendon reflexes

Superficial reflexes

Reflex Activity

Functions of the parasympathetic and sympathetic divisions

Parasympathetic division

The sympathetic division

ANS Divisions

Clinical importance of drugs 

ANS Characteristics

General Chemistry

Jules

Study the key concepts of Physics with descriptive videos, questions, and more

Physics

Patrick

General Biology

Jason

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Precalculus

Biochemistry

Macroeconomics

Chemistry

Biology

Math

Business

Social Sciences

Michelle Barry Franco

Building Great Presentations

Eric Zackrison, PhD

Critical Thinking And Problem Solving

Sam Bennett

Embracing Times Of Uncertainty

Nicole Tetreault, PhD

Emotional Intelligence Basics

Eugene Choi, PharmD

Enhancing Your Critical Thinking Skills

Jason Richardson, PsyD

Habits To Win Every Day

Alyssa Lowery, PhD

Having Powerful Advanced Conversations

Don Gilman, EdD

How To Influence & Persuade

Amy Matthews

Leadership Skills For Rising Stars

Listening To Lead

Michael Shermer, PhD

Making Decisions Under Uncertainty

Lynne Hurdle

Mistakes To Avoid When Resolving Conflict

Michael Veltri

Overcoming Decision Making Traps

Mike Vardy

Prioritizing Effectively

Secrets Of Effective Prioritization

Strategies To Build Up Your Creativity

Tools For Decision Making

Tutti Taygerly

Unleash And Advance Your Creativity

Winning Collaboration: How To Work More Effectively With Different Personalities

Writing Emails People Want To Read

Critical Thinking

Self Management

Digital Literacy

Collaboration

Communication

Analytical Thinking

Leadership

Flexibility/Adaptability

Innovation

Eric Zackrison

Nicole Tetreault

Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

Mariya Breyther 

Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript