Respiratory System: Muscles of Exhalation Flashcards
Abdominal Muscles
Rectus Abdominis
External Oblique
Internal Oblique
Transversus Abdominis
Rectus Abdominis
Superficial
Enveloped in Abdominal aponeurosis
Rectus Abdominis Attachments
Pubic bone
Sternum
Costal Cartilage 1-7
(HTR: abs-> pubis; abs -> stern; abs -> six pack +1 +1)
Rectus Abdominis Function
Pull down Sternum and ribs (T& AP)
Compress abdominal viscera (pushes diaphragm up)
External Oblique
Superficial, Fibers run hand in vest pocket
External Oblique Attachments
Ilium
Lower ribs
Abdominal Aponeurosis
HTR: next to pubis (rectus); next to aponeurosis
External Oblique Functions
Compress viscera (pushes up dia)
Lowers ribs
Internal Oblique
Deep to external oblique
Fibers run hand groping chest
Internal Oblique Attachments
Ilium
lower ribs
Abdominal Aponeurosis
Inguinal ligament
HTR: SAME AS EXTERNAL + inguinal ligament
Internal Oblique Functions
Compress Viscera
Lowers ribs
Transversus Abdominis
Side to side fibers
deepest muscle
Transversus Abdominis Attachments
Ilium
Lower ribs
Abdominal Aponeurosis
Inguinal Ligament
Lumbar fascia
HTR: Internal Oblique + Lumbar Fascia from Lats (backest)
Transversus Abdominis Function
Compress Viscera
Lower ribs
Rib cage Muscles
Internal Intercostals
Subcostals
Transversus Thoracis
Serratus Posterior Inferior
Quadratus Lumborum
Internal Intercostals
Deep to external intercostals
may activate all together or individually
Fibers run hand groping chest formation