THORAX MOINA Flashcards by Carnelian Antolin

EXTERNAL INTERCOSTALS

O: lower border of a rib
I: upper border of a rib
A: elevate ribs during inspiration
N: intercostal nerves

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ORIGIN OF EXT. INTERCOSTALS

lower border of a rib

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INSERTION OF EXT. INTERCOSTALS

upper border of rib

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ACTION OF EXT. INTERCOSTALS

elevate ribs during inspiration

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INNERVATION OF EXT. INTERCOSTALS

intercostal nerves

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INTERNAL INTERCOSTALS

O: Inner surface of a rib and
costal cartilages
I: Upper borders of the adjacent ribs
below
A: Draw ribs downward during forced
Expiration
N: Intercostal nerves

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ORIGIN OF INT. INTERCOSTALS

inner surface of a rib and costal cartilages

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INSERTION OF INT. INTERCOSTALS

upper borders of the adjacnet ribs below

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ACTION OF INT. INTERCOSTALS

draw ribs downward during forced expiration

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INNERVATION OF INT. INTERCOSTALS

intercostal nerves

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TRANSVERSUS THORACIS

O: Inner surfaces of the lower
third of the body of the
sternum and adjacent
surfaces of the xiphoid
process
I: Internal surfaces of the sternocostal
joints associated with the second (or
third) through the sixth ribs
A: Depresses the ribs
N: Intercostal nerves

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ORIGIN OF TRANSVERSUS THORACIS

Inner surfaces of the lower
third of the body of the
sternum and adjacent
surfaces of the xiphoid
process

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INSERTION OF TRAVERSUS THORACIS

Internal surfaces of the sternocostal
joints associated with the second (or
third) through the sixth ribs

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ACTION OF TRANSVERSUS THORACIS

depresses ribs

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INNERVATION OF TRANSVERSUS THORACIS

intercostal nerves

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QUADRATUS LUMBORUM

O: Iliolumbar ligament and
crest of the ilium
I: Rib 12 and tips of the transverse
processes of the L1 to L4
A: Extension and side flexion of lumbar
spine, expiration
N: Ventral ramus of spinal
nerve roots T12-L3

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ORIGIN OF QL

iliolumbar ligament and crest of ilium

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INSERTION OF QL

rib 12 and tips of transverse processes of L1 to L4

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ACTION OF QL

extension and side flexion of lumbar spine, expiration

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INNERVATION OF QL

ventral ramus of spinals nerve roots T12-L3

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PSOAS MAJOR

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O: Transverse processes and
lateral bodies of the last
thoracic and all lumbar
vertebrae including the
intervertebral discs
I: Lesser trochanter of femur
A: Forward flexion and side flexion of
lumbar spine, Flexion of the hip joint
N: Branches of ventral
rami L1-L3

ORIGIN OF PSOAS MAJOR

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Transverse processes and
lateral bodies of the last
thoracic and all lumbar
vertebrae including the
intervertebral discs

INSERTION OF PSOAS MAJOR

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lesser trochanter of femur

ACTION OF PSOAS MAJOR

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forward flexion and side flexion of lumbar spine, flexion of hip joint

INNERVATION OF PSOAS MAJOR

branches of ventral rami L1-L3

ILIACUS

O: Superior two thirds of the iliac fossa, inner lip of the iliac crest I: Lesser trochanter of femur A: Flexion of hip joint N: Femoral nerve

ORIGIN OF ILIACUS

superior 2/3 of iliac fossa, inner lip of iliac crest

INSERTION OF ILIACUS

lesser trochanter of femur

ACTION OF ILIACUS

flexion of hip jt

INNERVATION OF ILIACUS

femoral nn.

RECTUS ABDOMINIS

O: Pubic crest and anterior pubic ligament I: On the front of the wall of the thorax, along a horizontal line passing laterally from the xiphoid process, and cutting in that order, the 7th, 6th and 5th costal cartilages A: Expiration, Flexion of the spine N: Lower six or seven thoracic nerves

ORIGIN OF RECTUS ABDOMINIS

pubic crest and ant. pubic ligament

INSERTION OF RECTUS ABDOMINIS

On the front of the wall of the thorax, along a horizontal line passing laterally from the xiphoid process, and cutting in that order, the 7th, 6th and 5th costal cartilages

ACTION OF RECTUS ABDOMINIS

expiration, flexion of spine

INNERVATION OF RECTUS ABDOMINIS

lower six or seven thoracic nerves

EXTERNAL OBLIQUES

O: Lateral side of ribs 4-12 I: Iliac crest, linea alba, and contralateral rectus sheaths A: Bilaterally: flexion of the trunk and posterior tilt of the pelvis Unilaterally: lateral flexion and contralateral rotation of the trunk N: Lower six thoracic nerves

ORIGIN OF EXT. OBLIQUE

lateral side of ribs 4-12

INSERTION OF EXT. OBLIQUE

iliac creast, linea alba, and contralateral rectus sheaths

ACTION OF EXT. OBLIQUE

Bilaterally: flexion of the trunk and posterior tilt of the pelvis Unilaterally: lateral flexion and contralateral rotation of the trunk

INNERVATION OF EXTERNAL OBLIQUE

lower six thoracic nerves

INTERNAL OBLIQUE

Lateral side of ribs 4-12 Iliac crest, linea alba, and contralateral rectus sheaths Bilaterally: flexion of the trunk and posterior tilt of the pelvis Unilaterally: lateral flexion and contralateral rotation of the trunk Lower six thoracic nerves

ORIGIN OF INT. OBLIQUE

Iliac crest, inguinal ligament, and thoracolumbar fascia

INSERTION OF INT. OBLIQUE

Ribs 9-12, linea alba, and contralateral rectus sheaths

ACTION OF INT. OBLIQUE

Unilaterally: lateral flexion and ipsilateral rotation of the trunk Bilaterally: flexion of the trunk and posterior tilt of the pelvis

INNERVATION OF INT. OBLIQUE

lower six thoracic nerves and first lumbar nerve

TRANSVERSUS ABDOMINIS

O: Iliac crest, thoracolumbar fascia, inner surface of the cartilages of ribs 6-12 and the inguinal ligament I: Linea alba A: Bilaterally: stabilization of attachment sites for other abdominal muscles; compression of the abdominal cavity N: Lower six thoracic nerves and the first lumbar nerve

ORIGIN OF TRANSVERSUS ABDOMINIS

Iliac crest, thoracolumbar fascia, inner surface of the cartilages of ribs 6-12 and the inguinal ligament

INSERTION OF TRANSVERSUS ABDOMINIS

linea alba

ACTION OF TRANSVERSUS ABDOMINIS

Bilaterally: stabilization of attachment sites for other abdominal muscles; compression of the abdominal cavity

INNERVATION OF TRANSVERSUS ABDOMINIS

lower six thoracic nerves and first lumbar nerve

THORAX MOINA Flashcards

(50 cards)