Abdominals and Respiratory Muscles: Action Flashcards
Determine the action of the serratus posterior superior
A. Raises ribs and therefore inspiratory muscle
B. Proprioception; possible raises ribs and therefore inspiratory muscle
C. Increases vertical diameter of the thorax by pulling central tendon downward; assists in raising lower ribs
D. Proprioception, possibly depresses ribs and therefore and expiratory muscle
B. Proprioception; possible raises ribs and therefore inspiratory muscle
Determine the action of the serratus posterior inferior
A. Raises ribs and therefore inspiratory muscle
B. Proprioception; possible raises ribs and therefore inspiratory muscle
C. Increases vertical diameter of the thorax by pulling central tendon downward; assists in raising lower ribs
D. Proprioception, possibly depresses ribs and therefore an expiratory muscle
D. Proprioception, possibly depresses ribs and therefore an expiratory muscle
Determine the action of the diaphragm
A. Raises ribs and therefore inspiratory muscle
B. Proprioception; possible raises ribs and therefore inspiratory muscle
C. Increases vertical diameter of the thorax by pulling central tendon downward; assists in raising lower ribs
D. Proprioception, possibly depresses ribs and therefore and expiratory muscle
C. Increases vertical diameter of the thorax by pulling central tendon downward; assists in raising lower ribs
Determine the action of the levatores costarum (12)
A. Raises ribs and therefore inspiratory muscle
B. Proprioception; possible raises ribs and therefore inspiratory muscle
C. Increases vertical diameter of the thorax by pulling central tendon downward; assists in raising lower ribs
D. Proprioception, possibly depresses ribs and therefore and expiratory muscle
A. Raises ribs and therefore inspiratory muscle
Determine the muscle described by its action:
The most important muscle of inspiration that acts as a thoracoabdominal pump. It increases intra-abdominal pressure as in abdominal straining and weight lifting, and helps in child-birth, urinating, and defecating.
Diaphragm
The action of this muscle:
Stabilizes rib cage; with the lower ribs fixed by abdominal muscle, it lowers ribs during expiration
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
D. Internal intercostal (11)
The action of this muscle:
Assists the internal and external intercostal muscles
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
C. Innermost intercostal
The action of this muscle:
May depress ribs, expiratory in function
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
B. Subcostales
The action of this muscle:
Expiratory muscle; depresses costal cartilages; lie deep to internal thoracic vessels and secure these vessels to the wall
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
A. Transversus thoracis
The action of this muscle:
Stabilizes the rib cage; active during inspiration; supports intercostal space
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
E. External intercostal (11)
The action of this muscle:
When the 1st rib is fixed, it moves ribs superiorly and increase AP and transverse diameters
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
E. External intercostal (11)
Most active respiratory muscle during expiration
A. Transversus thoracis
B. Subcostales
C. Innermost intercostal
D. Internal intercostal (11)
E. External intercostal (11)
D. Internal intercostal (11)
TRUE OR FALSE: The oblique muscles laterally flex and rotate the trunk.
True
It compresses abdominal contents, flexes the vertebral column and stabilizes pelvis; an accessory muscle of expiration
A. External oblique
B. Internal oblique
C. Transversus abdominis
D. Rectus abdominis
E. Both A and B
D. Rectus abdominis
Action: Compresses abdominal contents
A. External oblique
B. Internal oblique
C. Transversus abdominis
D. Rectus abdominis
E. Both A and B
C. Transversus abdominis
Actions: Supports abdominal contents; compresses abdominal contents; assists in flexing and rotating trunk, forced respiration, micturition, defecation, parturition, and vomiting
A. External oblique
B. Internal oblique
C. Transversus abdominis
D. Rectus abdominis
E. Both A and B
E. Both A and B
Action: It flexes the 12th rib during inspiration; depresses the 12th rib during forced expiration; laterally flexes the vertebral column on the same side
A. Psoas
B. Iliacus
C. Quadratus lumborum
D. Pyramidalis
E. Both A and B
C. Quadratus lumborum
Action: It flexes the thigh; if the thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down
A. Psoas
B. Iliacus
C. Quadratus lumborum
D. Pyramidalis
E. Both A and B
E. Both A and B
Action: Tenses the linea alba
A. Psoas
B. Iliacus
C. Quadratus lumborum
D. Pyramidalis
E. Both A and B
D. Pyramidalis
TRUE OR FALSE: During inspiration, the 1st rib is fixed by the scalene muscle and the intercostal muscles raise the 2nd to 12th rib towards the first rib.
True
TRUE OR FALSE: During expiration, the 12th rib is fixed by the quadratus lumborum and the oblique muscles of the abdomen, and the 1st to 11th ribs will be lowered by the contraction of the intercostal muscles.
True
