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Anatomy > External Muscle Of The Vertebral Column > Flashcards

External Muscle Of The Vertebral Column Flashcards

0
Q

What is extension?

A

Bending backward.

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1
Q

What is flexion?

A

Forward bending

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2
Q

What is lateral flexion?

A

Bending from right to left laterally

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3
Q

What is rotation?

A

Turning/spinning along axis

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4
Q

What are the 2 spinotrasverse muscles?

A
  1. ) Splenius capitis

2. )Splenius cervicis

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5
Q

What is the structure and function Splenius capitis?

A

Structure:

  • most superficial
  • branches from find the head

Function:

  • extension
  • rotation of the neck
  • lateral flexion tonight
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6
Q

What is the structure and function Splenius cervicis?

A

Structure:

  • Band type muscle
  • deep to capitis
  • branches from fine to cervical (neck)

Function:

  • extension
  • rotation of the Neck
  • lateral flexion To neck
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7
Q

What are the 3 erector spinae?

A
  1. ) Ilicostalis (lateral) I
  2. ) Longissimus (middle) love
  3. ) Spinalis (medial) spaghetti
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8
Q

What is the structure and function of Ilisocostalis muscle?

A

Structure:

  • Most lateral of the group
  • Sacrum to head

Function:

  • Extension for whole spine
  • Lateral flexion
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9
Q

What is the structure and function of the Longissimus muscle?

A

Structure:

  • Middle man
  • Splenius cervicis superficial
  • Long muscle

Function:
- Extension

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10
Q

What is the structure and function of the Spinalis muscle?

A

Structure:

  • Most medial
  • Closest to spine

Function:
- Major extensor

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11
Q

What are the 2 different Transverospinalis?

A
  1. ) Semispinalis

2. ) Multifidus (deepest)

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12
Q

What is the Structure and function of the Semispinalis?

A

Structure:
- between cervical and thoracic vertebrae

Function:
- Extension of cervical spine (neck)

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13
Q

What is the function and structure of the Multifdus?

A

Structure:
-Deepest vertebral column muscle

Function:

  • Strongest extensor muscle of the of the vertebral column.
  • postural support
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14
Q

What are the names of the 4 Sunoccipital muscles?

A
  1. ) Rectus capitis posterior minor
  2. ) Rectus capitis posterior major
  3. ) Obliquus capitis superior
  4. ) Obliquus capitis interior
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15
Q

What is the structure and function of the Suboccipital muscles?

A

Structure:
-Attaches to the occipital (head)

Function:

  • stabilizes and supports head
  • fusion
  • extension

Anatomy (8 decks)

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