curs muschi 2012

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

Ramurile plexului brahialRamurile plexului brahial

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


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


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


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


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


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


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


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


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


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


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)

curs muschi 2012

Documents

interosseous

muschi antebratului

posterior

lateral epicondyle

ulna insertion

metacarpal

thumb action

distal phalanx