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Anatomy > Back > Flashcards

Back Flashcards

1
Q

Trapezius (Upper)

A

Origin: occipital bone

Insertion: lateral clavicle

Action:

  • bilaterally: extend the head and neck
  • unilaterally: laterally flex the head and neck to the same side, rotate head and neck to the opposite side, elevate and upwardly rotate the scapula

Nerve: spinal portion of the cranial nerve XI (accessory) and ventral ramus of C2, C3, and C4

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2
Q

Trapezius (Middle)

A

Origin: ligamentum nuchae and spinous processes of C7-T12

Insertion: acromion

Action: adduct and stabilize the scapula

Nerve: spinal portion of the cranial nerve XI (accessory) and ventral ramus of C2, C3, and C4

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3
Q

Trapezius (Lower)

A

Origin: ligamentum nuchae and spinous processes of C7-T12

Insertion: spine of the scapula

Action: depress and upwardly rotates the scapula

Nerve: spinal portion of the cranial nerve XI (accessory) and ventral ramus of C2, C3, and C4

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4
Q

Latissmus Dorsi

A

Origin: inferior angle of scapula, spinous processes of last 6 thoracic vertebrate, last 3 or 4 ribs, thoracolumbar aponeurosis, and posterior iliac crest

Insertion: intertubcular groove of the humerus

Action: extend, adduct, and medially rotate the shoulder

Nerve: thoracodorsal nerve C6, C7, C8

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5
Q

Levator Scapulae

A

Origin: Transverse processes of first through fourth cervical vertebrate

Insertion: medial border of the scapula, between the superior angle and superior portion of the spine of the scapula

Action:

  • unilaterally: elevates and downwardly rotate the scapula, laterally flex head and neck, rotate the head and neck to the same side
  • bilaterally: extend the head and neck

Nerve: cervical nerves 3 and 4, and dorsal scapular nerve C4 and C5

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6
Q

Rhomboid Major

A

Origin: spinous processes of T2-T5

Insertion: medial border of the scapula between the spine of the scapula and inferior angle

Action: adduct, elevate, and downwardly rotate the scapula

Nerve: dorsal scapular nerve C4 and C5

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7
Q

Rhomboid Minor

A

Origin: spinous processes C7-T1

Insertion: upper portion of medial border of the scapula, across from the spine of the scapula

Action: adduct, elevate, and downwardly rotate the scapula

Nerve: dorsal scapular nerve C4 and C5

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8
Q

Serratus Posterior Superior

A

Origin: spinous processes of C7-T3

Insertion: posterior surface of ribs 2-5

Action: elevate the ribs during inhalation

Nerve: Intercostal nerves T1-4

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9
Q

Serratus Posterior Inferior

A

Origin: spinous processes of T12-L3

Insertion: posterior surface of ribs of 9-12

Action: depress the ribs during exhalation

Nerve: Intercostal nerves T9-12

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10
Q

Iliocostalis (Lumborum)

A

Origin: common tendon

Insertion: transverse processes of L1-3 and posterior surface of ribs 6-12

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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11
Q

Iliocostalis (Thoracis)

A

Origin: posterior surface of ribs 1-12

Insertion: posterior surface of ribs 1-6

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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12
Q

Iliocostalis (Cervicis)

A

Origin: posterior surface of ribs 1-12

Insertion: transverse processes of lower cervicals

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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13
Q

Longissimus (Thoracis)

A

Origin: common tendon

Insertion: lower 9 ribs and transverse processes of thoracic vertebrate

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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14
Q

Longissimus (Cervicis)

A

Origin: transverse processes of upper 5 thoracic vertebrate

Insertion: transverse processes of cervical vertebrate

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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15
Q

Longissimus (Capitis)

A

Origin: transverse processes of upper 5 thoracic vertebrate

Insertion: mastoid process of temporal bone

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

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16
Q

Spinalis (Thoracis)

A

Origin: spinous processes of upper lumbar and lower thoracic vertebrate

Insertion: spinous processes of upper thoracic

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

17
Q

Spinalis (Cervicis)

A

Origin: ligamentum nuchae, spinous process of C7

Insertion: spinous process of cervicals, except C1

Action:

  • unilaterally: laterally flex vertebral column to same side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

18
Q

Multifidus

A

Origin: sacrum and transverse processes of lumbar through cervical vertebrate

Insertion: spinous processes of lumbar vertebrate C2 (span two to four vertebrate)

Action:

  • unilaterally: rotate vertebral column to opposite side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

19
Q

Rotatores

A

Origin: transverse processes of lumbar through cervical vertebrate

Insertion: spinous processes of lumbar vertebrate C2 (span one to two vertebrate)

Action:

  • unilaterally: rotate vertebral column to opposite side
  • bilaterally: extend the vertebral column

Nerve: spinal nerves

Anatomy (23 decks)

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