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John Schultz
Anatomy Weeks 1-6
| Question | Answer |
|---|---|
| External to muscles, bones, other organs | Fascia |
| Under the skin | Superficial Fascia |
| Surrounds deeper organs, including epimysium of muscle | Deep Fascia |
| Tubelike tunnel around tendon of muscle; lined with synovial membrane | Tendon Sheath |
| Surrounds entire muscle organ | Epimysium |
| Surrounds a fascicle (bundle) of muscle fibers | Perimysium |
| Surrounds an individual muscle fiber | Endomysium |
| can vary in length, but long straplike muscles with parallel fascicles are perhaps most typical. The sartorius muscle of the leg is a good example. | Parallel muscles |
| have fascicles that radiate out from a small to a wider point of attachment, much like the blades in a fan. The pectoralis major muscle is a good example. | Convergent muscles |
| said to be “featherlike” in appearance. Three categories of these muscles have uniquely different types of fascicle attachments that in some ways resemble the feathers in an old-fashioned plume pen. | Pennate muscles |
| have fascicles that may be close to parallel in the center, or “belly,” of the muscle but converge to a tendon at one or both ends. The brachioradialis is a good example. | Fusiform muscles |
| have fibers that twist between their points of attachment. such as the latissimus dorsi, | Spiral muscles |
| sometimes called orbicular muscles and sphincters, often circle body tubes or openings. The orbicularis oris around the mouth is an example. The external anal sphincter around the anus is another example. | Circular muscles |