Muscles and Muscle Metabolism

Jan 06, 2013

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1/5/2013. MDufilho. 2. Introduction: Muscle Metabolism

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Muscles and Muscle Metabolism

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Muscles Muscle Tissues

Overview of Muscle. Muscle Types Skeletal: striated, voluntary Cardiac: only in heart, striated, involuntary Smooth/Visceral: walls of organs, not striated, involuntary . Functions. MovementPosture maintenanceHeat generation (3/4 of energy produced by ATP escapes as heat)Stabilization of jointsProtection of some internal organs.

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Muscles and Muscle Action

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. Review of movement types Flexor Extensor Abduction Adduction Rotation. Muscles students need to know:. Rotator Cuff Deltoid (delts) Pectorals (pecs) Biceps External Obliques (waist) Quadriceps (quads) Tibialis Anterior (shins). Internal Obliques (waist)

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Muscles and Muscle Action

Muscles and Muscle Action. Muscle classification. Muscles are involved in every movement in your body. This includes the beating of your heart and the digestion of your food, as well as activities like running, jumping and lifting.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. Chapter 9. http://graphics8.nytimes.com/images/2012/05/09/health/09Physed/09Physed-tmagArticle.jpg. Three Types of Muscle Tissue. Skeletal muscle tissue: Attached to bones and skin Striated Voluntary (i.e., conscious control) Powerful Fibers = cells.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue . Muscular Tissue. Characteristics Excitability: tissue is able to respond to a stimulus Extensibility: tissue is able to be stretched Elasticity: tissue is able to return to normal after stretching. Contractibility: tissue is able to shorten and thicken .

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Muscle Function and Metabolism

Muscle Function and Metabolism. Adenosine Triphosphate (ATP). ATP is the source of energy for muscle contraction. Muscles store a very limited amount of ATP ( 4-6 sec. worth at most ). ATP must be regenerated if contraction is to continue ATP can be generated by one of three pathways….

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 9. Part B. Action Potential: Electrical Conditions of a Polarized Sarcolemma. The outside (extracellular) face is positive, while the inside face is negative This difference in charge is the resting membrane potential . Figure 9.8 (a).

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Muscles and Muscle Tissues

Muscles and Muscle Tissues. Overview. Types of Muscles Tissues Skeletal Cardiac Smooth These types differ in structure, location, function, and means of activation. Similarities. Skeletal and smooth muscle cells are elongated and called muscle fibers

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 9. Part B. Depolarization. Initially, this is a local electrical event that occurs at the nmj, called the end plate potential Later, it ignites an action potential that spreads in all directions across the sarcolemma.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. Form and Function of Movement. Muscle Tissue. Anatomy and Histology. Functional Characteristics of Muscle Tissue. Excitability, or irritability – the ability to receive and respond to stimuli Contractility – the ability to shorten forcibly

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Muscles and Muscle Physiology

9. Muscles and Muscle Physiology. Table 9.3 Comparison of Skeletal, Cardiac, and Smooth Muscle (1 of 4). Special Characteristics of Muscle Tissue. Excitability: Contractility : Extensibility : Elasticity :. Muscle Functions. Four important functions

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 9. Part A. Muscle Overview. Muscle tissue makes up nearly half the body mass. The most distinguishing functional characteristic of muscles is their ability to transform chemical energy ATP into directed mechanical energy

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 9. Part B. Depolarization. Like the plasma membranes of all cells, a resting sarcolema is polarized Initially, this is a local electrical event called end plate potential Later, it ignites an action potential that spreads in all directions across the sarcolemma.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. P A R T A. Muscle Overview. The three types of muscle tissue are skeletal, cardiac, and smooth Skeletal and smooth muscle cells are elongated and are called muscle fibers Muscle contraction depends on two kinds of myofilaments – actin and myosin.

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Muscle Metabolism

Muscle Metabolism. Why Do We Need All That ATP?. Animal Locomotion. What are the advantages of locomotion?. sessile. motile. Lots of ways to get around…. Lots of ways to get around…. mollusk. mammal. bird. reptile. Lots of ways to get around…. bird. arthropod. mammal. bird.

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Muscles and Muscle Metabolism

9. Muscles and Muscle Metabolism. Introduction: Muscle Metabolism – Energy for Contraction. Energy is never created nor destroyed, only stored or released Bonds = energy – ATP is the currency for cellular energy Energy is stored in the bonds. Muscle Metabolism: Energy for Contraction.

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Muscles and Muscle Tissue

9. Muscles and Muscle Tissue. Muscle cells are referred to as ________. muscle fibers muscle spindles muscle myosin muscle actin. Which of the following is not a prefix used to refer to muscle?. Mys Myo Sarco Lemma.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 9. Part A. Muscle Overview. The three types of muscle tissue are skeletal, cardiac, and smooth These types differ in structure, location, function, and means of activation. Muscle Similarities.

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Muscle Metabolism

Muscle Metabolism. Aerobic respiration: produces large amounts of ATP but requires O 2 to function, waste products: water, CO 2 Anaerobic fermentation: produces small amounts of ATP in absence of O 2 waste product: lactic acid (major factor in fatigue). Muscle Metabolism.

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Muscles and Muscle Tissue

Muscles and Muscle Tissue. 8. Part A. Muscle Overview. Muscle tissue makes up nearly half the body mass. The most distinguishing functional characteristic of muscles is their ability to transform chemical energy ATP into directed mechanical energy

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MUSCLES AND MUSCLE TISSUE

MUSCLES AND MUSCLE TISSUE. Muscles. The most distinguishing functional characteristic of muscles is their ability to transform chemical energy (ATP) into directed mechanical energy In doing this, they become capable of exerting force Terminology:

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