Doc Ariel General Myology Flashcards

1
Q

Muscular System

A

Composed of cells with contractility and conductivity.

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2
Q

Muscle Fiber

A

Functional cell unit of the muscular system.

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3
Q

Contractility

A

Ability of muscle cells to shorten.

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4
Q

Conductivity

A

Ability to transmit electrical impulses.

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5
Q

Locomotion

A

Movement through flexion, extension, and rotation.

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6
Q

Respiration

A

Muscle function aiding in breathing.

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7
Q

Circulation

A

Muscle role in blood flow.

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8
Q

Alimentation

A

Muscle function related to feeding.

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9
Q

Smooth Muscle

A

Non-striated, involuntary muscle found in organs.

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10
Q

Striated Involuntary Muscle

A

Cardiac muscle with cross striations, rhythmic contractions.

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11
Q

Striated Voluntary Muscle

A

Skeletal muscle controlled voluntarily, multinucleated.

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12
Q

Sarcolemma

A

Thin membrane surrounding each muscle fiber.

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13
Q

Endomysium

A

Connective tissue surrounding myofibrils.

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14
Q

Perimysium

A

Connective tissue surrounding muscle fascicles.

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15
Q

Epimysium

A

Outer sheath wrapping entire muscle.

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16
Q

Belly of Muscle

A

Expanded portion of a muscle.

17
Q

Origin of Muscle

A

Fixed point of muscle attachment.

18
Q

Insertion of Muscle

A

Movable point of muscle attachment.

19
Q

Sesamoid Bones

A

Small bones under tendons, protect and redirect pull.

20
Q

Bursa

A

Fluid-filled sacs reducing friction between tissues.

21
Q

Synovial Tendon Sheaths

A

Double-layered sacs wrapping tendons in grooves.

22
Q

Fascia

A

Connective tissue binding muscles and providing routes.

23
Q

Accessory Structures

A

Includes sesamoid bones, bursae, and fascia.

24
Q

Purkinje Fibers

A

Special fibers conducting impulses in cardiac muscle.

25
Dark Fibers
Red fibers for sustained contractions.
26
Pale Fibers
White fibers for quick, forceful contractions.
27
Extrinsic Muscles
Muscles responsible for shoulder and upper arm movement.
28
Trapezius
Extrinsic muscle aiding in shoulder movement.
29
Latissimus Dorsi
Extrinsic muscle involved in arm movement.
30
Tendon
Connective tissue attaching muscle to bone.
31
Aponeurosis
Flat sheet-like connective tissue for muscle attachment.