Capillary diameter can be varied by nervous stimulation (closing), histamine (dilation), and changes in capillary wall cell shape. Blood flow regulation in capillaries is managed by the precapillary sphincter.
El diámetro de los capilares puede variar por estimulación nerviosa (cierre), histamina (dilatación) y cambios en la forma de las células de la pared capilar. La regulación del flujo sanguíneo en los capilares está a cargo del esfínter precapilar.
| Front | 1)How can the diameter of capillaries can be varied 2)Regulation of blood flow in capillaries is by |
|---|---|
| Back | Nervous stimulation → close Histamine → dilate cells of capillary wall change their shapes Pre-capillary sphincter |
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