9. Muscles and Muscle Tissue

Smooth Muscle

Smooth Muscle vs. Skeletal Muscle

 the ability of ATP to energize the sliding process 

 ATP energizes the sliding process in both skeletal and smooth muscle. 

 Sarcoplasmic reticulum is present in smooth, cardiac, and skeletal muscle. 

 Gap junctions are present in unitary smooth muscle and cardiac muscle. 

 Which of the following characteristics is unique to smooth muscle? 

Smooth Muscle Contraction

 Smooth muscle is not striated in appearance, because it lacks sarcomeres. Additionally, smooth muscle tends to be organized in sheets. These sheets are present in all but the smallest blood vessels and in the walls of hollow organs of the respiratory, digestive, reproductive, and urinary systems. The alternating contraction and relaxation of these layers is regulated by the autonomic nervous system. Thus, smooth muscle contraction is under involuntary control. Unlike cardiac and skeletal muscle, smooth muscle is regenerative. 

 Smooth muscle tends to be organized in sheets. 

 Once damaged, smooth muscle is unable to regenerate. 

 Contraction of smooth muscle is regulated by the autonomic nervous system. 

 Which of the following is FALSE regarding smooth muscle? 

 Smooth muscle fibers are small and spindle-shaped. Cardiac muscle has branching fibers and is striated and involuntary. Skeletal muscle has peripherally located nuclei and rapid and forceful contractions. 

 Fibers are small and spindle-shaped.    

 Nuclei are peripherally located in the fibers. 

 Smooth muscle is striated and involuntary. 

 Which of the following statements about smooth muscle is true? 

Mechanisms of Smooth Muscle Contraction

Smooth Muscle Tissue Anatomy

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-prd.pearsonprd.tech/courses/anp/thumbnails/anp

#FFFFFF

RegisteredNurseRN

Dr Matt & Dr Mike

Catalyst University

SparkHealth

1. Introduction to A&P

2. Chemistry

3. Cells

4. Tissues

5. Integumentary System

6. Bones + Skeletal Tissues

7. Skeletal System

8. Joints

10. Muscular System

11. Nervous Tissue

12. Central Nervous System

13. Peripheral Nervous System

14. Autonomic 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

Muscle Tissue

Muscle Metabolism

Muscle Contraction

Isotonic Contraction

Skeletal Muscle

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