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EXCI 253 (anatomy) > Abdominal muscles > Flashcards

Abdominal muscles Flashcards

1
Q

Name the 5 abdominals.

A
  1. Quadratus Lumborum
  2. External Obliques
  3. Internal Obliques
  4. Transverse Abdominis
  5. Rectus Abdominis
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2
Q

What is the location of the quadratus lumborum?

A

Iliac crest, rib 12, L1-L4

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3
Q

What is the location of the rectus abdominis?

A

Pubic crest/symphysis, xiphoid process, 5-7 costal cartilages

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4
Q

What are 2 characteristics of the rectus abdominis?

A
  • They have tendinous sheaths (that don’t connect to bone)
  • They have inscriptions/intersections
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5
Q

What is the innervation of rectus abdominis?

A

Intercostal nerves

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6
Q

What is the location of the external obliques?

A

Lower 8 ribs, iliac crest/linea alba

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7
Q

What does the aponeurosis of the external obliques form?

A

Inguinal ligament

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8
Q

Which muscle interdigitates with the serratus anterior?

A

External Obliques

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9
Q

What is the innervation of the external obliques?

A

Intercostal (thoracic) nerves

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10
Q

What is the action of external obliques>

A

Expiration

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11
Q

What is the location of internal obliques?

A

Inguinal lig, Iliac crest, last 4 ribs (costal cartilages)

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12
Q

Spermatic cord enters inguinal lig. and picks up fibers from which muscle?

A

Internal obliques

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13
Q

What is the innervation of internal obliques?

A

Intercostal nerves

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14
Q

What is the action of internal obliques?

A

Expiration

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15
Q

What is the location of transverse abdominis?

A

inguinal lig, iliac crest, lower 6 costal cartilages

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16
Q

What are the functions of the transverse abdominis?

A
  • Constricts abdominal viscera
  • Expiration
17
Q

What is the innervation of transverse abdominis?

A

Intercostal nerves

18
Q

What are the 4 parts of the abdominal wall?

A
  • Anterior rectus sheath
  • Posterior rectus sheath
  • Transversalis Fascia
  • Parietal Peritoneum
19
Q

What are the functions of the abdominal wall?

A
  • Protection
  • Forced Expiration
  • Defecation
  • Micturition
  • Partuition
  • Vomitting

EXCI 253 (anatomy) (18 decks)

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