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8 Cards in this Set
- Front
- Back
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Name the 3 types of muscles |
Smooth (involuntary) Striated (voluntary) Cardiac |
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What are the differences between intrinsic muscles and extrinsic muscles |
Intrinsic - both attachments on one limb. Involved in moving joints of the limb. Extrinsic - one attachment to limb and other to the body. Moving of limb in relation to the body. |
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What is the apperance of skeletal muscle? |
Striated, striped, voluntary. Attached to bones. |
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What is the appearnace of smooth muscle? |
Non striped, nucleus present. Bound together by connective tissue. |
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What is the apperance of cardiac muscle |
Short, cylindrical, branched fibres (similar to skeletal muscle) nucleus present. Irregular striped pattern. Controlled by a conduction system. |
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Explain the structure of muscle fibres (muscle cells) |
Each muscle fibres contain fassicles which are groups of myofibrils. Each myofibril is enclosed in a sheath of connective tissue called sarcolemma.
Myofibrils are made up of protein filaments called actin (thin) and myosin (thick)
A bunch of fibrils are bound in a connective tissue called Endomysium Bunches of these are enclosed in Perimysium.
Individual muscles are enclosed in Epimysium |
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What structures are found in your skeletal muscle? |
Muscle belly - thick fleshy centre Origin - starting point of attachment Insertion - where muscle inserts onto a bone Bursa - protective cushion between the bone and tendon |
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Where are smooth muscles found? |
In visceral structures - blood vessels, gastrointestinal tract, uterus and bladder. |
