click below
click below
Normal Size Small Size show me how
Justin Ancheta Wk 6
Anatomy Wk 6 Assignment
| Question | Answer |
|---|---|
| What is the fibrous covering that is external to muscles, bones, and other organs? | Fascia |
| What is the fibrous covering that surrounds an individual muscle fiber? | Endomysium |
| Where is the fulcrum in a muscle movement in regards to the lever system? | The joint |
| Where is the force or pull in a muscle movement in regards to the lever system? | The muscle that is contracting |
| What is a first class lever? | Muscle movement where the fulcrum is in between the pull and the load. Ex: Tilting your head up; atlas is fulcrum, face is load, neck is pull |
| What is a second class lever? | Muscle movement where the load is in between the fulcrum and the pull. Ex: Calf raise; toes are the fulcrum, body is the load, calf is the pull |
| What is a third class lever? | Muscle movement where the pull is between the load and the fulcrum. Ex: Bicep curl; elbow is the fulcrum, bicep is the pull, dumbbell is the load |
| What is the origin of the sternocleidomastoid? | Sternum and clavicle |
| What is the insertion of the sternocleidomastoid? | Temporal bone (mastoid process) |
| What is the function of the sternocleidomastoid? | -Flexes head and neck -Rotates head to other side (one muscle at a time) |