Myology: the study of skeletal muscles

Slides:

Advertisements

Similar presentations

Bio& 241 A&P 1 Unit 3 / Lecture 3. Actions of Antagonistic Muscles Prime mover Antagonist.

Advertisements

Section A: Applied Anatomy and Physiology 7. Muscle fibre types.

The Organization of a Skeletal Muscle Figure 7-1.

Muscle Metabolism.

Skeletal Muscle Metabolism How do muscles use energy?

Sprinting is based on muscle strength Long distance running requires endurance Strength is the ability to do something that uses a lot of energy for a.

Muscle fibers (cells) Myofibrils Myofilaments Actin Myosin Sliding Filament Theory of Muscle Contraction Hypertrophy = Atrophy=

بسم الله الرحمن الرحیم. Muscular system Type of Muscles Skeletal Muscle Cardiac Muscle Smooth Muscle.

Human Body Systems Lesson 21 Terms and Definitions.

Skeletal Muscle State possible sources of fatigue

Muscle Physiology: The Actions of the Sarcomere.

To understand the cellular processes for synthesis of ATP.

ATP of Skeletal Muscles

ENERGY SOURCES FOR MUSCLE CONTRACTION. Objectives 1.Energy used 2.Energy produced 3.Oxygen debt 4.Muscle fiber types 5.Muscle fatigue.

Copyright © 2010 Pearson Education, Inc. Muscle Fiber Type Classified according to two characteristics: 1.Speed of contraction: slow fibers or fast fibers.

The Sliding Filament Theory Slide 6.18 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.8.

Muscle Tissue Cont. Muscle Metabolism Chapter 10.

Muscular system recap.. Classifications of muscles There are three types of muscle you need to know. There are three types of muscle you need to know.

Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Frederic H. Martini PowerPoint.

Energy Systems 3 Systems 3 groups of energy nutrients Muscle fibre types.

Slow and Fast twitch Muscle Fibre types

Aerobic & Anaerobic Metabolism in Muscles. Objectives Recognize the importance of ATP as energy source in skeletal muscle. Understand how skeletal muscles.

VIII. Types of Skeletal Muscle Fibers A.Categories 1. Color varies according the content of myoglobin, and oxygen storing, reddish pigment a. Red muscles-

Muscles II Biology 2121 Chapters Origins and Insertions (1). Origin: attachment to less or non-moveable bone (2). Insertion: muscle inserts on the.

EXERCISE AND ENERGY Contracting and Relaxing Skeletal Muscle.

Energy systems in muscle cells.. During strenuous muscle activity the cell rapidly breaks down its reserves of ATP to release energy. Muscle cells have.

Actions of Antagonistic Muscles Prime mover Antagonist.

A comparison of the energy costs of various modes of locomotion. Locomotion requires energy to overcome friction and gravity.

Energy Systems. Energy Nutrients 1.Proteins 2.Fats 3.Carbohydrates Glucose Metabolism = Chemical reactions in the body that convert the fuel from food.

26 October 2009 This Week in Physiology: Wednesday Quiz: 1 Question based on Today’s Lecture Lab: Muscle Physiology #1 Lectures: Ch. 9 Muscle Physiology.

Skeletal Muscle Physiology Muscle excitation and energy sources. Describe the roles of ATP in muscle function. Explain the sources of ATP for muscle function.

The Muscular System. Muscle Tissues Cardiac –Involuntary striated muscle –Found only in heart –Smooth –Lines blood vessels, digestive organs, urinary.

MUSCLE STRUCTURE. WHAT IS SKELETAL MUSCLE? Muscles are composed of strands of proteins grouped together in fibres. 70% of tissue is water Creates movement.

Energy and Exercise. Vocabulary terms: Aerobic – requiring the presence of oxygen Anaerobic – without oxygen Fast-twitch fibers – fibers that are large.

Microanatomy of Muscles Ch. 6b. Microscopic Anatomy of Skeletal Muscle Slide 6.9a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings.

Ch.10 Muscle Tissue Skeletal Muscle Tissue and the Muscular System.

Energy Requirements of Skeletal Muscles. Metabolism of skeletal muscle depends on O 2 uptake -- depends on whether exercise is light, moderate, heavy,

Starter Activity Timer

Sports Physiology Exercise Physiology Improvements through training.

The Muscular System 9 BIOLOGY.

Muscle Energy Pathways

Chapter 6 Muscular System.

Muscles and Fiber Types

(8) Energy systems in muscle cells

Contraction of a Skeletal Muscle

Bio& 241 A&P 1 Unit 3 / Lecture 4.

Muscle Metabolism.

Muscle Energy use & fatigue

More muscles … ugh We’re almost there!! .

March 27, 2017 Journal: How does exercise lead to muscular hypertrophy?

26 October 2010 This Week in Physiology: Lab: Frog Muscle Physiology

MUSCULAR system Fibre Types

Exercise Science Section 5: Energy Systems and Muscle Fiber Types

Function of the Muscular system

Key Muscle Groups.

November 2017 Journal: Explain the process of sliding filament theory.

Muscle Physiology.

NOTES: The Muscular System (Ch 8, part 3)

Energy Requirements of Skeletal Muscles

Types of Muscle Fibers and Contractions

Higher Human Biology Unit 1 – Human Cells

Role of ATP ATP (provided by mitochondria)

Muscle Contraction I Department of Biology, WCU.

Summarize the steps that occur when a muscle relaxes?

Muscle Contraction.

Do now activity #2 What are the functional characteristics of muscle (4)? Compare & contrast: endomysium, perimysium, & epimysium. What is another.

Key Area 1.8 – Energy Systems in Muscle Cells

Chapter 9 Part III.

Presentation transcript:

Myology: the study of skeletal muscles MUSCLES – 1B Myology: the study of skeletal muscles

Types of Skeletal Muscle Fibers Skeletal muscle fibers are categorized according to two characteristics How they manufacture energy (ATP) How quickly they contract Oxidative fibers—produce ATP aerobically; with oxygen Glycolytic fibers—produce ATP anaerobically by glycolysis

3 CLASSES OF

Types of Skeletal Muscle Fibers KNOW THESE PROTEINS Types of Skeletal Muscle Fibers 1) Slow oxidative fibers Red color due to abundant myoglobin Obtain energy from aerobic metabolic reactions Contain a large number of mitochondria Contract slowly and resistant to fatigue Fibers are small in diameter Long distance runner

Types of Skeletal Muscle Fibers 2) Fast oxidative fibers Contract quickly like fast glycolytic fibers Are oxygen-dependent: aerobic Have high myoglobin content Somewhat fatigue resistant More powerful than slow oxidative fibers 1500 m race

Types of Skeletal Muscle Fibers 3) Fast glycolytic fibers Contain little myoglobin and few mitochondria About twice the diameter of slow oxidative fibers Contain more myofilaments and generate more power Depend on anaerobic pathways Contract rapidly and tire quickly

end