BI 103 4 - o Amount of oxygen-binding protein myoglobin...

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BI 103 4 – Muscular System 16:04 Muscle Tissues     Smooth: digestive system Skeletal: Really big cells Cardiac: heart Skeletal: 650 muscles Support, movement, heat generation, blood circulation (Pg. 92) Blood circulation o Fasicles: bundles within bundles o Fiber: muscle cells o Myofibrils: fibers that make up a muscle cell o Myofilaments: bundles that make up myofibrils o Sarcomere: spaces on the myofibril Myofibrils need ATP energy (mitochondria) and calcium for  contraction Muscular – Skeletal Interactions     Tendons: connect muscle to bone (dense connective tissue) Ligaments: connect bone to bone Exercise Physiology     Aerobic Exercise muscle building Increase:  o Number and size of mitochondria o Number of blood capillaries
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Unformatted text preview: o Amount of oxygen-binding protein myoglobin Strength Training Increase: o Number of myofibrils o Energy efficiency Slow Twitch Fibers: slow to contract and fatigue (dark) More mitochondria and myoglobin Fast Twitch Fibers: fast to contract and fatigue (light) Temperature Regulation Shivering: small involuntary contractions Cramps: large involuntary contractions Multiple causes include dehydration and ion deficiency Stretching: lengthening out the sarcomeres Muscle fibers and connective tissues lengthen Muscle mass can decrease over time use it or lose it visualizing exercises may slightly increase muscle mass 16:04 16:04...
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This note was uploaded on 04/10/2008 for the course BI 103 taught by Professor Blaire during the Spring '08 term at Oregon State.

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BI 103 4 - o Amount of oxygen-binding protein myoglobin...

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