Term
| 3 types of loss of muscle function |
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Definition
myasthenia gravis
cardiomyopathies
TMD |
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Term
Cells specialized in motile forces
(contraction) |
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Definition
1. myoepitheal cells (glands)
2. Pericytes (pre-capillary)
3. Myofibroblasts (wound contraction)
4. Muscle cells (muscles) |
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Term
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Definition
1. stretch beyond resting length (not contraction state)
2. return to resting state after contraction (elasticity)
3. Increase in size (hypertrophy) or number Hyperplasia or both |
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Term
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Definition
| muscle increase in size, weight lifting |
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Term
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Definition
| muscle cells increase in number . only occurs in the smooth muscle, a little in skeletal muscle in stem cells. |
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Term
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Definition
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Term
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Definition
| connective tissue that outlies major muscles. |
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Term
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Definition
| bundles of muscle fibers surrounded by perimysium |
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Definition
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Definition
| can be very long up to 20cm. |
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Definition
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Term
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Definition
multinucleated. within is myofibrils
surrounded by endomysium |
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Term
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Definition
| made up of individual elements that generate contraction. broken down into sarcomeres. 20 cm |
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Definition
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Definition
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Definition
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Definition
| is the thick and thin filamens in a sarcomere. |
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Term
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Definition
| related to contraction...not relaxation. |
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Term
| Coordination of Skeletal Muscle Activity |
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Definition
1. Innervation (neuromuscular Junction)
2. Internal spread of depolarization
3. regulation of posture and mvment |
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Term
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Definition
| formed by reln b/n the axon and the muscle fiber calle d a motor end plate. |
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Term
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Definition
| defined as the number of muscle fibers innervated by a single neuron. |
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Term
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Definition
| may innervate from 1-3 muscle fibers (extraoccular muscles) or as many as several hundred fo rlarge limb muscles. |
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Term
| Internal spread of depolarization |
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Definition
| releases acH causes depolarization which travelsto the transverse tubule system. this leads to release of calcium from the sarcoplasmic retiuclum in a fraction of a second. |
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Term
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Definition
| storehouse for Ca. releases after depolarization |
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Term
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Definition
1. sensory neurons (afferent arm of reflex)
2. Alpha motor neuorn (efferent arm of reflex)
3. Gamma motor neuron (sesitivity of spindle) |
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Definition
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Definition
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Definition
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Term
| internal contractile forces |
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Definition
| transformed into movement by transmission of contraction across the cell membrane to teh external lamina. |
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Definition
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Definition
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Definition
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Definition
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Term
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Definition
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Term
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Definition
-striated
-multiple perpipheral nucleus
-branches
-intercalculated discs |
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Term
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Definition
cardiac muscle.
provide electrical adn mechanical coupling. |
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Term
| Conducting system of the heart |
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Definition
1. SA adn AV nodes receive parasympathetic adn sympathetic input.
2. Conducted thr the L/R bundle of His
3. Continues via teh purkinge fibers to teh cardiac muscle cells. |
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Term
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Definition
| in cardiac conduction not contraction |
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Term
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Definition
| form hollo organs, passages, or cavities, and serve to modify their volume. connect smooth muscle cells. |
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Term
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Definition
| form hollo organs, passages, or cavities, and serve to modify their volume. connect smooth muscle cells. |
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Term
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Definition
| innervated by both sympathetic, adn parasympathetic |
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Term
| actin binding dense bodies |
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Definition
| in cytoplasm on the sarcolemma, euquvalent to Z- Lines in stirated muscle. |
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