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Fig. 2 | Fluids and Barriers of the CNS

Fig. 2

From: Spinal CSF flow in response to forced thoracic and abdominal respiration

Fig. 2

Real-time MRI of thoracic and abdominal breathing. Selected sagittal real-time images through the right dome of the diaphragm during thoracic and abdominal respiration. Upper left: thoracic breathing at deep inspiration and upper right: deep expiration. Lower left: abdominal breathing at deep inspiration and lower right: deep expiration. Inspiration causes elevation of ribcage, widening of anteroposterior thoracic diameters, contraction of the diaphragm with downward movement of its dome and enlargement of the intrathoracic volume. The corresponding widening of the costodiaphragmatic recess (arrows) is more pronounced during abdominal inspiration

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