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Miologie Miologie
MuschiiMuschii
Muschii reprezinta unul din cele 4 tipuri Muschii reprezinta unul din cele 4 tipuri de tesuturi din structura organismului de tesuturi din structura organismului uman.uman.
MUSCHII SCHELETICI SUNT MUSCHII SCHELETICI SUNT COMPONENTA ACTIVA A COMPONENTA ACTIVA A APARATULUI LOCOMOTORAPARATULUI LOCOMOTOR
REPREZINTA 40% DIN GREUTATEA REPREZINTA 40% DIN GREUTATEA CORPULUI LA 70 KG-25KG DE MSCORPULUI LA 70 KG-25KG DE MS
Muschii scheleticiMuschii scheletici
CLASIFICARE-CLASIFICARE- Dupa forma pot fi:* lungiDupa forma pot fi:* lungi
*lati*lati
*scurti*scurti
*orbiculari*orbiculari
Dupa numarul capetelor de origineDupa numarul capetelor de origine BicepsBiceps TricepsTriceps cvadricepscvadriceps
Dupa asezareDupa asezare superficiali superficiali ProfunziProfunzi
Dupa nr articulatiilor Dupa nr articulatiilor UniarticulariUniarticulari BiarticulariBiarticulari poliarticularipoliarticulari
Dupa modul de asezare a fasciculelor Dupa modul de asezare a fasciculelor musculare fata de tendoanemusculare fata de tendoane
Se continua direct- muschi abdominaliSe continua direct- muschi abdominali Se insera oblic- penati-uni, -bi Se insera oblic- penati-uni, -bi Fasii aponevrotice transversale- drept Fasii aponevrotice transversale- drept
ant, digastricant, digastric
Tipuri de muschiTipuri de muschi
Muscles (2)Muscles (2)
3 Tipuri de tesut muscular3 Tipuri de tesut muscular
FunctiiFunctii
2.2. Mentinerea posturiiMentinerea posturii.. Muschii cefei va sustin Muschii cefei va sustin
capul chiar in acest capul chiar in acest momentmoment
In ortostatism ei sustin In ortostatism ei sustin intregul intregul
3.3. Intervin in termogenezaIntervin in termogeneza
Modul de fixare a Modul de fixare a muschilormuschilor
Prin tendoane –Prin tendoane – pe oase pe oase pe pielepe piele pe membrane fibroasepe membrane fibroase Pe fascii de invelisPe fascii de invelis Pe alte tendoanePe alte tendoane
Insertia proximala=origineInsertia proximala=origine Insertia distala = terminala Insertia distala = terminala
INSERTIA MUSCHIULUIINSERTIA MUSCHIULUI
QUICK THOUGHT QUESTION: IQUICK THOUGHT QUESTION: In this sculpture, n this sculpture, why are the lion’s back legs paralyzed even though why are the lion’s back legs paralyzed even though they were not injured?they were not injured?
STRUCTURA MUSCHIULUI STRUCTURA MUSCHIULUI STRIAT STRIAT
EpimisiumEpimisium EndomisiumEndomisium PerimisiumPerimisium
Muscle anatomyMuscle anatomy
Myofibril
Muscle fiber
Muscle fascicle
Actin
Myosin
STRUCTURA MICROSCOPICA A MUSCHIULUI STRIAT
Caracteristici ale tesutului Caracteristici ale tesutului muscularmuscular
-Excitabilitate-Excitabilitate -capacitatea de a receptiona si de a -capacitatea de a receptiona si de a raspunde la stimuliraspunde la stimuli
- - ContractilitateContractilitate
ElasticitateElasticitate
ExtensibilitateExtensibilitate
vascularizatie si vascularizatie si inervatieinervatie
Inervatie senzitivaInervatie senzitiva Inervatie motorieInervatie motorie
Motor UnitMotor Unit
Jonctiunea neuromuscularaJonctiunea neuromusculara
Muschii capului Muschii capului
Pielosi ai mimiciiPielosi ai mimicii Muschi masticatoriMuschi masticatori Muschii globului ocularMuschii globului ocular Muschii limbiiMuschii limbii
Muschii gatuluiMuschii gatului
Muschii cefeiMuschii cefei Muschii antero-Muschii antero-
lateralilaterali Muschii prevertebrali Muschii prevertebrali
si latero-vertebralisi latero-vertebrali Muschii viscerali de Muschii viscerali de
la faringe, esofag, la faringe, esofag, laringelaringe
Muschii membrului Muschii membrului superiorsuperior
Muschii centurii Muschii centurii scapularescapulare
axilla
Muschii membrului Muschii membrului superior libersuperior liber
Muschii membrului Muschii membrului superior libersuperior liber
Ramurile plexului brahialRamurile plexului brahial
Muschi antebratuluiMuschi antebratului
Muschi antebratuluiMuschi antebratului
flexors:deep layer
Muschii membrului Muschii membrului inferiorinferior
Muschii regiunii Muschii regiunii fesierefesiere
dorsal interossei
5454
Origin:Origin: Medial Medial epicondyle of epicondyle of humerus and humerus and coronoid process of coronoid process of ulnaulna
Insertion:Insertion: Middle Middle portion of radiusportion of radius
Action:Action: Pronates Pronates and flexes forearmand flexes forearm
Pronator Teres Pronator Teres
Anterior, Superficial Layer
5555
Origin:Origin: Medial Medial epicondyle of epicondyle of humerushumerus
Insertion:Insertion: Base of Base of second metacarpalsecond metacarpal
Action:Action: Flexes wrist Flexes wrist and elbow and and elbow and abducts wristabducts wrist
Flexor Carpi Radialis Flexor Carpi Radialis
Anterior, Superficial Layer
5656
Origin:Origin: Medial Medial epicondyle of the epicondyle of the humerushumerus
Insertion:Insertion: Palmar Palmar aponeurosisaponeurosis
Action:Action: Weak Weak flexion of wrist, flexion of wrist, tenses skin of palmtenses skin of palm
Palmaris Longus Palmaris Longus
Anterior, Superficial Layer
5757
Origin:Origin: Medial Medial epicondyle of epicondyle of humerus, olecranon humerus, olecranon process, & posterior process, & posterior ulnaulna
Insertion:Insertion: Pisiform, Pisiform, hamate, and fifth hamate, and fifth metacarpalmetacarpal
Action:Action: Flexes and Flexes and adducts wristadducts wrist
Flexor Carpi Ulnaris Flexor Carpi Ulnaris
Anterior, Superficial Layer
5858
Origin:Origin: Medial Medial epicondyle of epicondyle of humerus and humerus and coronoid process of coronoid process of ulnaulna
Insertion:Insertion: Middle Middle phalanges of fingersphalanges of fingers
Action:Action: Flexes fingers Flexes fingers and wristand wrist
Flexor Digitorum Flexor Digitorum Superficialis Superficialis
Anterior, Middle Layer
5959
Origin:Origin: Middle half of Middle half of radius, interosseous radius, interosseous membrane, coronoid membrane, coronoid process of ulnaprocess of ulna
Insertion:Insertion: Distal phalanx Distal phalanx of thumbof thumb
Action:Action: Flexes thumb Flexes thumb and wristand wrist
Flexor Pollicis Longus Flexor Pollicis Longus
Anterior, Deepest Layer
MUSCLES OF MUSCLES OF POSTEROLATERAL POSTEROLATERAL
FOREARMFOREARM
6161
Origin:Origin: Lateral Lateral supracondylar ridge supracondylar ridge
Insertion:Insertion: Styloid Styloid process of radiusprocess of radius
Action:Action: Flexes Flexes forearmforearm
Brachioradialis Brachioradialis
Posterior, Superficial Layer
6262
Origin:Origin: Lateral Lateral supracondylar ridge supracondylar ridge of humerus of humerus
Insertion:Insertion: Second Second metacarpalmetacarpal
Action:Action: Extends and Extends and abducts handabducts hand
Extensor Carpi Extensor Carpi Radialis Longus Radialis Longus
Posterior, Superficial Layer
6363
Origin:Origin: Lateral Lateral epicondyle of epicondyle of humerushumerus
Insertion:Insertion: Third Third metacarpalmetacarpal
Action:Action: Extends and Extends and abducts handabducts hand
Extensor Carpi Extensor Carpi Radialis Brevis Radialis Brevis
Posterior, Superficial Layer
6464
Origin:Origin: Lateral Lateral epicondyle of epicondyle of humerushumerus
Insertion:Insertion: Into distal Into distal phalanx by 4 phalanx by 4 tendonstendons
Action:Action: Extends Extends fingers and handfingers and hand
Extensor Digitorum Extensor Digitorum
Posterior, Superficial Layer
6565
Origin:Origin: Lateral Lateral epicondyle of epicondyle of humerus and humerus and posterior border of posterior border of ulnaulna
Insertion:Insertion: Fifth Fifth metacarpalmetacarpal
Action:Action: Extends and Extends and adducts handadducts hand
Extensor Carpi Extensor Carpi Ulnaris Ulnaris
Posterior, Superficial Layer
6666
Origin:Origin: Lateral Lateral epicondyle of humerusepicondyle of humerus
Insertion:Insertion: Extensor Extensor expansion of little fingerexpansion of little finger
Action:Action: Extends 5Extends 5thth digit digit and handand hand
Extensor Digiti Minimi Extensor Digiti Minimi
Posterior, Middle Layer
6767
Origin:Origin: Lateral Lateral epicondyle of humerus, epicondyle of humerus, supinator crest of ulnasupinator crest of ulna
Insertion:Insertion: Lateral Lateral surface and posterior surface and posterior border of radiusborder of radius
Action:Action: Supinates Supinates forearmforearm
Supinator Supinator
Posterior, Deepest Layer
6868
Origin:Origin: Posterior Posterior surface of ulna and surface of ulna and radius, and radius, and interosseous interosseous membranemembrane
Insertion:Insertion: First First metacarpalmetacarpal
Action:Action: Abducts thumb Abducts thumb and handand hand
Abductor Pollicis Abductor Pollicis Longus Longus
Posterior, Deepest Layer
6969
Origin:Origin: Middle third of Middle third of radius and radius and interosseous interosseous membranemembrane
Insertion:Insertion: Base of Base of proximal phalanx of proximal phalanx of thumbthumb
Action:Action: Extends Extends thumbthumb
Extensor Pollicis Extensor Pollicis Brevis Brevis
Posterior, Deepest Layer
7070
Origin:Origin: Middle third of Middle third of ulna and interosseous ulna and interosseous membranemembrane
Insertion:Insertion: Base of distal Base of distal phalanx of thumbphalanx of thumb
Action:Action: Extends thumbExtends thumb
Extensor Pollicis Extensor Pollicis Longus Longus
Posterior, Deepest Layer
Muschii membrului Muschii membrului inferior liberinferior liber
Muschii gambeiMuschii gambei
Muschii peretelui Muschii peretelui anterolateral anterolateral
Muschii peretelui Muschii peretelui anterolateral al anterolateral al abdomenuluiabdomenului
(11.11ab)
Muschii peretelui toracalMuschii peretelui toracal
(11.13a)