The volume receptor nervous feedback mechanism:
The volume receptors are considered to be activated by right atrial pressure (PRA),
and feedback is provided to control non-muscle arterial resistance and venous tone.
2008-00-00 00:00
Description of Guyton volume receptors module
Guyton
cardiovascular circulation
physiology
Guyton
volume receptors
organ systems
VR9:
Sensitivity control for volume receptor feedback to the venous system.
The output of Block 9 (ATRVFB) controls V0 of the venous tree. The sensitivity
controller is the variable (ATRVM).
keyword
Volume Receptors
VR6:
The final degree of effect of the volume nervous feedback mechanism is
the output from block VR6 (AH7).
VR7 and VR8:
Sensitivity control for the volume receptor nervous feedback effect on the
non-muscle arterial resistance. The output multiplier effect for feedback
to the arteries is the variable (ATRRFB) and the sensitivity controller is
the variable (ATRFBM).
Encapsulation grouping component containing all the components in the Volume Receptors Model. The inputs and
outputs of the Volume Receptors Model must be passed by this component.
VR3, VR4, and VR5:
Series of blocks to provide autoresetting of the volume receptors back
toward zero with time. The degree of reset is the variable (AHY), and
the time constant for resetting is the variable (AH11).
VR6:
The final degree of effect of the volume nervous feedback mechanism is
the output from block VR6 (AH7).
VR1 and VR2:
The function curve in Block VR1 and sensitivity control in VR2 (controlled by
variable AH9) provide a relationship between right atrial pressure (PRA) and an
intermediate factor (AHZ) that controls the degree of nervous feedback.
VR3, VR4, and VR5:
Series of blocks to provide autoresetting of the volume receptors back
toward zero with time. The degree of reset is the variable (AHY), and
the time constant for resetting is the variable (AH11).
VR1 and VR2:
The function curve in Block VR1 and sensitivity control in VR2 (controlled by
variable AH9) provide a relationship between right atrial pressure (PRA) and an
intermediate factor (AHZ) that controls the degree of nervous feedback.
VR1 and VR2:
The function curve in Block VR1 and sensitivity control in VR2 (controlled by
variable AH9) provide a relationship between right atrial pressure (PRA) and an
intermediate factor (AHZ) that controls the degree of nervous feedback.
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VR9:
Sensitivity control for volume receptor feedback to the venous system.
The output of Block 9 (ATRVFB) controls V0 of the venous tree. The sensitivity
controller is the variable (ATRVM).
VR7 and VR8:
Sensitivity control for the volume receptor nervous feedback effect on the
non-muscle arterial resistance. The output multiplier effect for feedback
to the arteries is the variable (ATRRFB) and the sensitivity controller is
the variable (ATRFBM).