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Veterinary Anatomy III > THRA.22 > Flashcards

THRA.22 Flashcards

1
Q

Give the development of embryonic muscle

A

Mesodermal somite cells → mesenchymal stem cells → embryonic muscle

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2
Q

Function of muscles

A

Convert chemical energy into mechanical energy

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3
Q

Give the three types of muscle

A
  • Smooth
  • Cardiac
  • Skeletal
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4
Q

Give the divisions of a skeletal muscle

A
  • Tendon of insertion
  • Muscle belly
  • Tendon of origin
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5
Q

Muscles are surrounded by…

A

Epimysium + epitendineum

(Fibrous connective tissue)

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6
Q

Vessels enter muscle at the…

A

Hilus

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7
Q

M. unipennatus

A

Muscle with:

  • Two parallel tendon sheaths
  • Fibres oblique to the line of force
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8
Q

M. bipennatus

A

Muscle with:

  • Double tendon sheaths
  • Fibres oblique to the line of force
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9
Q

M. multipennatus

A

Muscle with:

  • Multiple tendon sheaths
  • Fibres oblique to the line of force
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10
Q

List the classifications of skeletal muscle

A
  • Flexor
  • Extensor
  • Adductor
  • Abductor
  • Sphincter
  • Dilator
  • Levator
  • Depressor
  • Rotator
    • Supinator
    • Pronator

(D[a]DS EARFLAPS)

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11
Q

Which structures passively support muscles?

A
  • Fascia
  • Septa intermuscularia
  • Bursae synoviales
  • Vaginae synoviales tendinum
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12
Q

List the major cutaneous muscles

A
  • Platysma
  • M. cutaneus colli
  • M. cutaneus faciei
  • M. cutaneus trunci
  • M. sphincter colli profundus
  • M. sphincter colli superficialis
  • M. frontalis
  • M. interscutularis
  • M. parotideoauriculatis
  • Mm. preputiales cran et caud
  • M. supramammarius cranialis et caudalis
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13
Q

M. cutaneus colli

A
  • Eq/Ru/Su
  • Over jugular groove
  • Twitch skin of the neck
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14
Q

M. cutaneus faciei

A
  • Eq/Ru
  • Continuation of m.cutaneus colli
  • Covers m. masseter
  • Tenses the skin of the face + lips
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15
Q

M. cutaneus trunci

A
  • Lateral part of the trunk, caudal to shoulder
  • Twitches the skin of the trunk
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16
Q

M. frontalis

A
  • Ca/Su/Ru
  • Over the temporal + frontal bone
  • Moves the skin over the forehead
17
Q

M. interscutularis

A
  • Attaches to the cartilago scutiformis of the ear
  • Draws the base of the ear medially
18
Q

Mm. preputiales cran. et caud.

A
  • From the ostium of the prepuce to the wall of the prepuce
  • Pulls the prepuce over the penis for urination
19
Q

M. sphincter colli profundus

A
  • Ca
  • From masseteric and parotid regions
  • Moves skin of face and cheek
20
Q

M. sphincter colli superficialis

A
  • Ca
  • From sternum to the mandible
  • Tense the skin of the neck
21
Q

M. supramammarius cran. et caud.

A
  • Allows twitching of the skin over the mammae
22
Q

Platysma

A
  • Ca/Su
  • Primary muscle of facial expression
23
Q

M. parotideoauricularis

A
  • Allows movement of the ear
    • For facial expression
    • For focus of hearing
24
Q
A

Veterinary Anatomy III (124 decks)

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