Contraction musculaire Flashcards

1
Q

Les 4 caractéristiques fonctionnelles du tissus musculaire ?

A
  1. Excitabilité (Réactivité)
  2. Contractilité (capacité se contracter avec force)
  3. Extensibilité (éturement au delas valeur repos)
  4. Élasticité (relachement, revenir position repos)
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2
Q

5 fonctions des muscles

A
  1. Production Mouvement
  2. Maintenir posture (squelettique/musculaire)
  3. Contribuer stabilite articulation (ligaments)
  4. degager chaleur (frissons)
  5. Proteger organes internes (entoure viscere)
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3
Q

Anatomie macroscopique muscle squelettique :

A
  • Fibres musculaires squelettiques
  • neurofibres
  • Tissus conjonctif
  • vaisseau sanguin
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4
Q

4 Couches muscles.

MEPE ou FEPE

A
  1. Fibre musculaire (myocyte)
  2. Endomysium
  3. Pérymisium
  4. Épimysium
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5
Q

Élément strié contractile du muscle squelettique

A

Myofibrilles

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6
Q

Incapacite physiologique se contracter meme en presence stimulus ?

A

Fatigue musculaire

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7
Q

Filaments mince

A

Actine

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8
Q

Filaments epais

A

Myosine

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9
Q

Contraction musculaire

A

Tete myosine
ponts unions avec
filaments actines
tire vers centre sarcomere

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10
Q

Fonction reticulum sarcoplasmique

A

Libere et reprendre et retenir CALCIUM necessaire a la contraction

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11
Q

Contraction muscle etapes

A

Stimulus
Operation
Serie action
ACH (calcium++)

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12
Q

Supplément creatine effet

A

+ eau muscle
capacite retention eau
plus force ps endurance
cesse perte rapide muscle

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13
Q

Entrainement

A
  • hypertrophie musculaire

Contre resistance = hypertrophie = + force

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14
Q

Course

A
Pratique reg exercises aerobique
Accroit
efficacite
endurance
force
resistance a la fatigue des muscles squelettiques
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15
Q

Difficulte bouger bras apres platre

A

atrophie musculaire entraine faiblesse musculaire
masse perdu remplacer par tissus conjonctif

Solution

physiotherapie

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