Muscles Included In Respiration (exc Intercostals)

Question 1

What are the other muscles included in respiration apart from the intercostals

Answer 1

Rect abdominus
External oblique
Internal oblique
Transversus abdominus

Question 2

What separates the two rectus abdominus

Answer 2

Linea alba - midline fibrous structure

Question 3

What are transverse tendinous intersections

Answer 3

Create the 6 pack and are found anteriorly in the muscle and attach firmly to the rectus sheath

Question 4

Describe the rectus sheath

Answer 4

Comprised of the aponeuroses of both internal and external oblique

Question 5

What are the 3 lateral muscles

Answer 5

External oblique
Internal oblique
Transverses abdominus

Question 6

Morphology of external oblique

Answer 6

Most superficial of the 3 lateral sheets
Situated on the anterolateral aspect of the abdominal wall
Fibres run downwards and medially

Question 7

Morphology of the internal oblique

Answer 7

Runs deep to external oblique
Fibres run downwards and laterally
Middle layer of 3 lateral abdominal muscles

Question 8

What is the morphology of the transversus abdominis

Answer 8

Forms the deepest layer with transversely arranged muscle fibres

Question 9

What are the functions of the abdominal muscles

Answer 9

Expulsive acts like coughing and vomiting
Provides a muscular corset to hold the abdominal viscera in place