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15 Cards in this Set
- Front
- Back
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What are four important things to remember about the muscular system? |
1. Remember there were different types ofmuscle: cardiac, smooth and skeletal. 2. All muscle cells are elongated and thereforeare called muscle fibers. 3. All muscle tissues contract. 4. Muscles contain muscle cells (called musclefibers), connective tissue, blood vessels, andnerves |
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What are the three types of muscles? |
1. Smooth muscle 2. Cardiac muscle 3. Skeletal muscle |
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What are muscle cells called and describe one aspect of them. |
All muscle cells are elongated and therefore are called muscle fibers. |
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True or False: All muscle tissues contract |
True |
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What are the four components of a muscle? |
Muscles contain: 1. Muscle cells (called muscle fibers) 2. Connective tissue 3. Blood vessels 4. Nerves |
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What are smooth muscles and what are their functions? |
* Smooth muscles are involuntary muscles foundin the walls of many internal organs (digestivetract, respiratory system, blood vessels). *Function to aid in the function of other organs |
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What are cardiac muscles and what are their functions? |
* Cardiac muscles are involuntary muscles foundonly in the heart wall. * Functions by contracting to force blood from theheart into the arteries Copyright © 2009 Pearson Education, Inc. |
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What are skeletal muscles and how do they function? |
Skeletal muscle * Skeletal muscle are voluntary muscles attachedto the skeleton. * Usually work in pairs |
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How do skeletal muscles work in pairs? |
Skeletal Muscles Work in Pairs 1. Most skeletal muscles are antagonistic pairs. * One muscle contracts, the other relaxes 2. Muscles are attached to the bone by tendons 3. Skeletal muscles are usually attached to two bones on opposite sides of a joint 4. The origin of the muscle is attached to thebone that remains stationary during movement 5. The insertion is attached to the bone thatmoves 6. Bones act as levers in working with skeletalmuscles to produce movement |
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What is an antagonistic pair? |
When one muscle contracts and the other relaxes. |
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What are tendons? |
They attached muscles to the bones |
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How do bones produce movement? |
They act as levers win working with skeletal muscles to produce movement. |
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How are skeletal muscles attached to the bone (location) |
Skeletal muscles are usually attached to two bones on opposite sides of a joint. |
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What is the origin? |
The origin of the muscle is attached to the bone that remains stationary during movement. |
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What is the insertion? |
The insertion is attached to the bone that moves. |
