Underarmens dorsale extensorer (superficiel) Flashcards

1
Q

Hvilke muskler indgår i underarmens dorsale extensorer (superficiel)?

A

M. anconeus
M. extensor carpi ulnaris
M. extensor digiti minimi
M. extensor digitorum

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2
Q

Hvor udspringer M. anconeus?

A

Humerus:

Epicondylus lateralis humeri.

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3
Q

Hvor tilhæfter M. anconeus?

A

Ulna (Proximalt på bagfladen)

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4
Q

Hvilken funktion har M. anconeus?

A

Albueled:
Extension (dorsaiflexion).

Stabiliserer art. humeroradialis
(komponent af albueleddet)

Fungerer som antagonist til m. pronator teres
under pronation af underarmen.

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5
Q

Hvilken innervation har M. anconeus?

A

N. radialis (C5 - C8).

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6
Q

Hvor udspringer M. extensor carpi ulnaris?

A

Humerus:
Epicondylus lateralis humeri.
Lig. collaterale radiale.

Ulna:
Facies posterior ulnae.

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7
Q

Hvor tilhæfter M. extensor carpi ulnaris?

A

Basis ossis metacarpalis V (6 Kulisse)

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8
Q

Hvilken funktion har M. extensor carpi ulnaris?

A

Albueleddet:
- Extension.

Håndleddet:

  • Dorsalfleksion (extension).
  • Ulnardeviation (adduction)
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9
Q

Hvilken innervation har M. extensor carpi ulnaris?

A

N. radialis (C5 - C8).

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10
Q

Hvor udspringer M. extensor digiti minimi?

A

Humerus:
Epicondylus lateralis humeri

Ulna:
Facies posterior ulnae.

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11
Q

Hvor tilhæfter M. extensor digiti minimi?

A

Extensoraponeurosen på basis phalanx proximalis 5.

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12
Q

Hvilken funktion har M. extensor digiti minimi?

A

Albueleddet:
- extension.

Håndleddet:
-Dorsalfleksion (extension).

Fingre:
-Extension af 5. finger.

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13
Q

Hvilken innervation har M. extensor digiti minimi?

A

N. Radialis (C5-C8)

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14
Q

Hvor udspringer M. extensor digitorum?

A

Humerus:

Epicondylus lateralis humeri.

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15
Q

Hvor tilhæfter M. extensor digitorum?

A

Ekstensoraponeurosen:

- Basis af phalanx distalis 2-5.

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16
Q

Hvilken funktion har M. extensor digitorum?

A

Albueleddet:
- ekstension.

Håndleddet:
Dorsalfleksion (ekstension).

Fingre:
Ekstension af 2 - 5 finger.

17
Q

Hvilken innervation har M. extensor digitorum?

A

N. Radialis (C5-C8)