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1330/2222 Human Anatomy > Unit 4 Thoracic Wall & Abdominals > Flashcards

Unit 4 Thoracic Wall & Abdominals Flashcards

1
Q

Anterior Rami Information

A
  • Sensor info from
  • Motor info too
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2
Q

Anterior Rami Innervation

A
  • Everywhere except deep back muscles
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3
Q

Thorax Innervation

A
  • Intercostal N
  • No plexuses
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4
Q

Intercostal Nerves

A
  • Costal groove protection
  • Segmental innervation throughout thorax
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5
Q

VAN Organization

A
  • Superior to inferior
  • Vein
  • Artery
  • Nerve
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6
Q

Intercostal Muscles

A
  • External
  • Internal
  • Innermost
  • Diaphragm
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7
Q

External

A
  • Elevates ribs (inspiration)
  • Superolateral to inferomedial
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8
Q

Internal & Innermost

A
  • Depresses rib (force exhalation)
  • Superomedial to inferolateral
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9
Q

Intercostal Innervation

A
  • Intercostal N
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10
Q

Diaphragm

A
  • Central tendon
  • Contraction of lower domes
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11
Q

Diaphragm Openings

A
  • Caval (vena cava) T8
  • Esophageal hiatus T10
  • Aortic hiatus T12
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12
Q

Caval Opening

A
  • T8
  • Inferior vena cava
  • Deoxygenated blood to heart
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13
Q

Esophageal Hiatus

A
  • T10
  • Connects esophagus to stomach
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14
Q

Aortic Hiatus

A
  • T12
  • Passage of descending aorta portion
  • Diaphragm to spinal column
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15
Q

Diaphragm Innervation

A
  • Phrenic N
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16
Q

Abdominal Muscles

A
  • External oblique
  • Internal oblique
  • Rectus abdominus
  • Transverse abdominus
17
Q

Abdominal Innervation

A
  • Anterior rami
18
Q

External & Internal Obliques

A
  • Compress abdomen
  • Flex & rotate vertebral column
  • Lateral bending
19
Q

Rectus Abdominus

A
  • Compress abdomen
20
Q

Transversus Abdominus

A
  • Compress abdomen
21
Q

Inguinal Ligament

A
  • Formed from layers of abdominal wall
  • Runs iliac spine to pubis symphysis
22
Q

Linea Alba

A
  • Center of abdomen
  • Runs xyphoid process to pubic symphysis
  • Doesn’t adhere to fascia layers
23
Q

Linea Semilunaris

A
  • Attachment of external & internal obliques
  • Onto aponeurosis
24
Q

Tranversalis Fascia

A
  • Deep layer of thin fascia
  • No longer have rectus sheath
25
Q

Arcuate Line

A
  • Above posterior & anterior sheaths
  • Fascial division within abdomen
  • Below no sheaths
26
Q

Arcuate Line Importance

A
  • Surgical landmark
  • C section
27
Q

Diastasis Recti

A
  • Separation of fascia at linea alba
  • Increases with abdominal strain
28
Q

Diastasis Recti Onset

A
  • Pregnancy (larger/multiple kids)
  • Small mother
  • 35+
29
Q

Diastasis Recti Treatment

A
  • Stop abdominal exercise
  • Post pregnancy, exercise & physio
  • Sometimes surgery
30
Q

Inspiration Muscles

A
  • Relaxation of diaphragm & external intercostals
31
Q

Active Expiration Muscles

A
  • Contraction of internal & innermost intercostals

1330/2222 Human Anatomy (32 decks)

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