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Sports therapy > Muscles trunk > Flashcards

Muscles trunk Flashcards

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1
Q

Rectus abdominis

A
  • Origin: pubic crest
  • Insertion: Xiphoid process,
  • Function: Trunk flexion
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2
Q

Transversus abdominis

A
  • Origin: Internal surfaces of costal cartilages of ribs 7-12,
  • Insertion: pectinal line of pubis
  • Function: Bilateral contraction - Compresses abdominal viscera
    Unilateral contraction - Trunk rotation
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2
Q

External obliques

A
  • Origin: External surfaces of ribs 5-12
  • Insertion: Linea alba
  • Function: Trunk flexion
  • Nerve Supply: Intercostal nerves
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3
Q

Internal obliques

A
  • Origin: Anterior two-thirds of iliac crest
  • Insertion: Inferior borders of ribs 10-12,
  • Function: Trunk flexion
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3
Q

Quadratus lumborum

A
  • Origin: Iliac crest,
  • Insertion: Inferior border of rib 12,
  • Function: fixes Ribs 12 during inspiration
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3
Q

Spinalis capitis

A
  • Origin: originates from the spinous processes of C7-T1 vertebrae
  • Insertion: into the midline of the occipital bone.
  • Function: extend and laterally flex the cervical and thoracic regions of the spine.
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4
Q

Spinalis colli

A
  • Origin: originates from the spinous processes of C7-T1 vertebrae
  • Insertion: to the spinous processes of C2-C4 vertebrae.
  • Function: extend and laterally flex the cervical and thoracic regions of the spine.
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5
Q

Spinalis thoracis

A
  • Origin: the spinous process of T11-L2 vertebrae
  • Insertion:
  • Function: extend and laterally flex the cervical and thoracic regions of the spine.
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6
Q

Sternocleidomastoid

A
  • Origin: superior part of anterior surface of manubrium sterni
  • Insertion: Lateral surface of mastoid process of the temporal bone,
  • Function: neck ipsilateral flexion,
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6
Q

Scalene muscles - anterior

A
  • Origin: anterior tubercle of transverse processes of vertebrae C3-C6
  • Insertion: scalene tubercle of rib 1,
  • Function: neck flexion
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7
Q

Scalene muscles – medial

A
  • Origin: transverse processes of C1/C2 -> C7
  • Insertion: superior border of rib 1
  • Function: neck lateral flexion
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7
Q

Scalene muscles – posterior

A
  • Origin: posterior tubercles of transverse processes of vertebrae C4-C6/C5-C7
  • Insertion: external surface of rib 2
  • Function: neck lateral flexion
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7
Q

Semispinalis capitis

A
  • Origin: Articular processes of vertebrae C4-C7,
  • Insertion: Between superior and inferior nuchal lines of occipital bone
  • Function: extension of head,
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7
Q

Semispinalis cervicus

A
  • Origin: Transverse processes of vertebrae T1-T6
  • Insertion: Spinous processes of vertebrae C2-C5
  • Function: Extension of head
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8
Q

Splenius capitis

A
  • Origin: Spinous processes of vertebrae C7-T3,
  • Insertion: Lateral superior nuchal line of occipital bone,
  • Function: Extends head/neck
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9
Q

Longus capitus

A
  • Origin: Anterior tubercles of transverse processes of C3-C6
  • Insertion: Basilar part of occipital bone
  • Function: head flexion;
9
Q

Longus colli

A
  • Origin: Anterior tubercles of transverse processes of vertebrae
  • Insertion: Anterior tubercle of vertebra
  • Function: Neck flexion
10
Q

(Iliocostalis Muscle Group)

A

Iliocostalis colli (cervicis)
Iliocostalis thoracis
Iliocostalis lumborum

11
Q

(Longissimus Muscle Group)

A

Longissimus capitis
Longissimus colli (cervicis)
Longissimus Thoracis

12
Q

(Spinalis muscle group)

A

Spinalis capitis
Spinalis colli (cervicis)
Spinalis Thoracis

13
Q

Longissimus capitis

A
  • Origin: transverse processes of vertebrae C4-T5
  • Insertion: inserts into the mastoid process of temporal bone.
  • Function: to extend and laterally flex (ipsilateral) the spine.
14
Q

Longissimus colli

A
  • Origin: extends between the transverse processes of vertebrae T1-T5 and transverse processes of vertebrae C2-C6.
  • Function:to extend and laterally flex (ipsilateral) the spine.
15
Q

Longissimus thoracis

A
  • Origin: travels from the L1-L5 vertebrae, sacrum and posterior iliac crest until the thoracic vertebrae and inferior six ribs.
  • Function: to extend and laterally flex (ipsilateral) the spine.
16
Q

Iliocostalis colli

A
  • Origin: the angle of ribs 3 to 6
  • Insertion: inserts into the transverse processes of vertebrae C4-C6.
  • Function: extend and laterally flex (ipsilateral) the spine.
17
Q

Iliocostalis lumborum

A
  • Origin: lateral crest of sacrum, medial end of iliac crest and thoracolumbar fascia.
  • Insertion: attaches to the angle of ribs 5-12
  • Function: extend and laterally flex (ipsilateral) the spine.
17
Q

Iliocostalis thoracis

A
  • Origin: muscle arises from the angles of ribs 7-12
  • Insertion: angles of ribs 1-6
  • Function: extend and laterally flex (ipsilateral) the spine.

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