Muscular System. The Muscular System Overview Muscles make up the bulk of the body and account for about one-third of its weight. Their ability to contract.

Slides:

Advertisements

Similar presentations

Advertisements

Muscular System.

Chapter 8 Muscular System.

End Show Slide 1 of 37 Copyright Pearson Prentice Hall 36–2 The Muscular System.

End Show Slide 1 of 37 Copyright Pearson Prentice Hall Biology.

Muscle. 3 Types of muscle Smooth- line the walls of internal organs and blood vessels. Involuntary movement. Skeletal- striated, allow for movement, voluntary.

Muscle Physiology.

Muscles. Types of Muscle 4 Smooth - involuntary 4 Skeletal - voluntary 4 Cardiac - involuntary.

End Show Slide 1 of 37 Copyright Pearson Prentice Hall 36–2 The Muscular System.

End Show Slide 1 of 37 Copyright Pearson Prentice Hall 36–2 The Muscular System.

The Muscular System. MUSCULAR SYSTEM Types of Muscle Tissue: Skeletal, Smooth, and Cardiac Skeletal, aka “striated” voluntary – attached to bones and.

The Muscular System 36-2 BIO 1004 Flora. Types of Muscle Tissue 3 Different Types of muscle tissue: o Skeletal o Smooth o Cardiac o Each type of muscle.

The muscular system Muscles  Makes up 40% of the mass of an average person.  Power every movement of the body, from the blink of an eye to regulating.

Objectives 32.2 The Muscular System

Muscles. Muscle Tissue Contains many mitochondria to power contractions Muscles are longer than they are wide Muscles are divided into fibers Muscle fibers.

 Movements – - voluntary – intend to make; ex. walking - involuntary – you do not control; ex. breathing.

Cardiac Muscle Involuntary –heart only Contracts & relaxes continuously throughout life –Contracts without nervous stimulation! –A piece of cardiac muscle.

Muscle & Muscle Tissue. Types of Muscle Tissue Skeletal Are striated Controlled voluntarily Tires easily.

Muscle Tissue. Three Types of Muscle Tissue Skeletal or Striated Muscle –Makes up all muscles that are attached to bones –Contractions allow the organism.

CHAPTER 45.3 Muscular System. Function = Allows body to move & provides force that pushes substances through out the body Voluntary vs. Involuntary: contractions.

ELAINE N. MARIEB EIGHTH EDITION 6 Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation by.

The Muscular System.

Muscles. Functions All body movements Moves bones Pumps blood Move food through digestive system Air movement.

MUSCULAR SYSTEM. Functions of the Muscular System Without muscles, nothing in your body would work All body movements depend on muscles Pump blood throughout.

1.04 STRUCTURES OF THE MUSCULAR SYSTEM

Muscular System. Facts about muscles… A skeleton cannot move by itself > 40% of the mass of the average human body is muscle Found everywhere in your.

Prefixes and Suffixes blast = budding or germ clast = break myo- = muscle sarco – flesh - algia or alg(i)o = pain arthr(o) = pertaining to the joints or.

Muscular tissue Mrs. Dalia Kamal Eldien MSC in Microbiology Lecture NO 7.

Ch. 4 Part 4 Muscular tissue Nervous tissue. Muscular Tissue Consists of muscle fibers that can use ATP to generate force Function: produces body movements,

Lesson Overview 32.2 The Muscular System.

Muscles. MUSCLES Muscle – Organ that contracts and relaxes (returns to regular length). As a result, body parts move. Tendon – thick bands that attach.

The muscular system. Three types of muscle Smooth muscle is an involuntary muscle. Example – digestive system Cardiac muscle is an involuntary muscle.

KEY CONCEPT Muscles are tissues that can contract, enabling movement.

Assumption College Mathayom 4, Universal Biology Miss Anna The Muscular System Lesson 32.2.

Lesson 11.1: Muscle Fitness Basics Question What is meant by the term muscular endurance?

The Muscular System and Integumentary System Ms. Hoffman September 13, 2004.

Do Now: What do you think muscles are made of?. Key Vocabulary Actin Myosin Microfibril Sarcomere Intercalated disc Nucleus Striation.

WARM UP 1.List 10 locations in the body you can find muscle.

INTRODUCTION TO THE MUSCULAR SYSTEM Part 1: Functions, Properties & Muscle Types.

7-3.3 SUMMARIZE THE RELATIONSHIPS OF THE MAJOR BODY SYSTEMS MUSCULAR SYSTEM- WORKS WITH THE SKELETAL SYSTEM TO ALLOW MOVEMENT. Muscular System Notes.

Do Now 10/14/14 1.What are the different types of muscle tissue in the body? 2.Which types of muscle tissue are voluntary? Involuntary? 3.Describe what.

THE MUSCULAR SYSTEM C14L2. How do bones, muscles, and skin help maintain the body’s homeostasis?

The Muscular System Working out: keeping the body functioning.

Muscular Tissue Muscular Tissue Muscular (contractile) tissue is composed of cells that are called muscle fibers. Muscle fibers contain actin filaments.

Muscular System. THE MUSCULAR SYSTEM COMPOSED OF MUSCLE TISSUE SPECIALIZED TO CONTRACT TO PRODUCE MOVEMENT WHEN STIMULATED BY NERVOUS SYSTEM.

The Muscular System.

Muscular System Chapter 8.

Why don’t skeletons play music in church?

Muscle Tissue Sarcomere Muscle Contraction Energy & Muscle Misc. 100

MUSCULAR SYSTEM I pp

Muscular System.

The Muscular System Unit 8b.

Lesson Overview 32.2 The Muscular System.

MUSCULAR SYSTEM.

Muscular System Chapter 8.

Muscular System.

The Muscular System.

MUSCULAR SYSTEM I pp

Muscular System Chapter 45.3.

MUSCULAR SYSTEM pp

The Muscular System.

Types, Function, and Components Chapter 9 Section

1.04 STRUCTURES OF THE MUSCULAR SYSTEM

Essential Question: What is the Muscular system?

Muscle Tissue Characteristics of Muscle

The Muscular System Notes.

Muscular System.

Muscles of the human body:

The Muscular System The ability to move is an essential activity of the human body ½ our body weight comes from muscles Consists of over 600 individual.

Presentation transcript:

Muscular System

The Muscular System Overview Muscles make up the bulk of the body and account for about one-third of its weight. Their ability to contract not only enables the body to move, but also provides the force that pushes substances, such as blood and food, through the body. Without the muscular system, none of the other organ systems would be able to function.

Muscle Types 1. Skeletal: moves parts of the body such as limbs, trunk, & face a. composed of cells called muscle fibers (myofibrils). b. many nuclei and is crossed with light and dark stripes called striations c. voluntary muscles- contractions can usually be controlled.

2. Smooth: muscle layers found in the walls of the stomach, intestines, blood vessels, and other internal organs. a. not striated b. involuntary muscle- movements cannot be consciously controlled

3. Cardiac: makes up walls of the heart a. specialized cells send electrical signals through the cardiac muscle causing the heart to rhythmically contract b. striated c. involuntary

Muscle Structure and Contraction A. Muscle fibers consist of bundles of threadlike structures called myofibrils. B. Myofibrils are composed of protein filaments called myosin (thick) and actin (thin). C. The sarcomere is the functional unit of muscle contraction.

D. When a muscle contracts, myosin and actin filaments interact to shorten the length of the sarcomere. E. The force of the muscle contraction is determined by the number of muscle fibers that are stimulated. F. Muscle fatigue is the inability of a muscle to contract. It is a result of ATP depletion. When Muscles are exercised extensively in the absence of sufficient oxygen, lactic acid is produced.