Glossary of Histology Section 4: Myology
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- smooth muscle
- nonstriated, involuntary
- cardiac muscle
- striated, involuntary
- skeletal muscle
- striated, voluntary
- The connective tissue encasement of an entire muscle.
- A small, finite bundle of muscle fibers contained within perimysium
- The connective tissue encasement surrounding and thus defining a muscle fascicle.
- One muscle cell.
- he relatively fixed muscle attachment (more movable). Usually the more proximal.
- The more mobile muscular attachment. usually the more distal.
- wide mid-region of a muscle.
- grossly separable parts of a muscle that often have different attachmetns
- synergistic muscles
- muscles with similar attachments or positiions, and thus like or supportive actions.
- agonist-antagonism muscles
- muscles that are positioned on opposite sides of joints thus having opposite actions to one another.
- What are two main reasons that knowledge of the location of origins and insertions of certain major muscles is important?
- 1) Knowing what joints and muscles will have effects on each other
2) Iff need to palpate
- Name 6 ways muscles are named.
- 1) attachments (sternocephalicus)
2) shape (teres major)
3) function (supinator)
4) location/position (biceps brachi)
5) number of heads (triceps)
6) number of bellies (digastricus)
- What are the four ways muscles can attach?
- 1) a tendon (fibrous connective tissue that connects muscle to a bone)
2)an aponeurosis (a broad, sheet-like tendon)
3) fascia (sheet or ban of fibrous tissue)
4) periosteum (connective tissue covering all bones of the body)
- sesamoid bones
- small bones that grow within tendons to provide extra strength and support, especially where extra tension is exerted
- a small fluid-filled sac or saclike cavity situated in tissue in places where friction would otherwise occur
- tendon sheaths
- fluid-filled sleeve that resembles a synovial bursa wrapped around the tendon, passing over points where tension is varied
- sheet or band of fibrous connective tissue that attaches skin to underlying structures
- specialized, band-like condensations of deep fascia that bind down extensor and flexor tendons over the carpus or tarsus
- anular ligaments
- condensed bands binding down flexor tendons over the digits
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