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Exam (elaborations)

Intercostal Muscles Practice Test + Answer Key (Anatomy)

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2025/2026 Written for academic year
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MEDICINE
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MEDICINE
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Comprehensive anatomy practice worksheet on intercostal muscles. Includes 30 multiple-choice questions and 5 fill-in-the-blank exercises with answer key. Covers structure, innervation, vascularization, and respiratory function. Ideal for medical and health science students.

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Músculos intercostales
son 3:
-​ intercostal externo
-​ intercostal interno
-​ intercostal íntimo
Ocupan los espacios intercostales. Inervado por
nervios intercostales (nervios espinales torácicos)
Ningún músculo intercostal ocupa todo el espacio
intercostal
Los músculos intercostales participan en la
respiración y se insertan en el borde superior de la
costilla infrayacente y borde inferior de la costilla
Suprayacente


Vascularización = arterias
intercostales (11)

1.​ Arteria intercostal anterior
1 - 7: Rama de la torácica interna
8 - 12: Rama de arteria músculo frenica ← Art
torácica interna
12 ← subcostal
2.​ Arteria intercostal posterior
1 - 2: intercostal suprema ← Art subclávia
3 - 12: ← aorta toracica (Ppal)

, Músculos Intercostales

1.​ Músculo intercostal externo:




De apófisis transversa a articulación costocondral
Fibras oblicuas hacia abajo y adelante,
Suben las costillas en la inspiración


2.​ Músculo intercostal interno




Desde este esternón hasta línea axilar anterior
Fibras oblicuas hacia abajo y atrás
Bajan las costillas en la espiración


3.​ Músculo intercostal íntimo

Desde articulación costocondral hasta el ángulo
posterior de la costilla
Fibras oblicuas hacia abajo y atrás,
Bajan las costillas en la espiración
Connected book
image
Michel Latarjet, Alfredo Ruiz Liard Anatomía humana
Publisher: 2004 ISBN: 9789500613682 Edition: Unknown

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April 28, 2026
Number of pages
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Written in
2025/2026
Type
Exam (elaborations)
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Questions & answers
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  • intercostal muscles
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  • respiratory system
  • thorax anatomy
  • multiple choise
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