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kin 121 > micro muscle: anatomy and physiology > Flashcards

micro muscle: anatomy and physiology Flashcards

1
Q

how is motion generated?

A

skeletal muscles provide force for the motion to occur

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2
Q

what are the types of human muscle tissue

A

smooth muscle, cardiac muscle, and skeletal muscle

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3
Q

what is smooth muscle

A

its a slow uniform contractions that is fatigue resistant

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4
Q

what is cardiac muscle

A

it is a self generating impulse that is very fatigue resistant

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5
Q

what tissues are cardiac muscles made of

A

both smooth and skeletal muscle tissue

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6
Q

what is skeletal muscle

A

it connects to bony segments via tendons and fatigues easily

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7
Q

what is striation

A

different amounts of overlapping of proteins

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8
Q

what is connective tissue

A

comprised of protein collagen surrounding muscle fibre bundles

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9
Q

what is a tendon

A

joins muscle to bones

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10
Q

what is fascia

A

a broad sheet of tendon

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11
Q

what is the breakdown of micro muscle anatomy

A

muscle, fascicle, muscle cell, myofibril, myofilaments

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12
Q

what are sacrolemma

A

cell membrane

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13
Q

what are sacroplasm

A

cytoplasm

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14
Q

what are sarcomere

A

functional unit

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15
Q

what are myofibrils

A

contain contractile proteins

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16
Q

what are sarcoplasmic reticulum

A

labyrinth of tubules inside fribres

17
Q

what are t-tubules

A

connect sarcoplasmic reticulum with outer membrane

18
Q

what is actin

A

thin filaments that form framework and slide over

19
Q

what are myosin

A

thick filament in the middle

20
Q

what is the sliding filament theory

A

the myofilament or contractile protein actin slide across myosin

21
Q

how is a muscle contraction created

A

myosin head grabs actin, is slides across myosin causing contraction of sarcomere unit

22
Q

what is a muscle contraction

A

many sarcomeres shortening

23
Q

what is an isometric state

A

muscle force equals the load, the muscle will not change in length

24
Q

what is concentric state

A

muscle force exceeds the load and muscle shortens

25
Q

what is eccentric state

A

muscle force is less than load and muscle lengthens

kin 121 (5 decks)

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