A closed sac with fluid in it
A blastocoele is the fluid-filled cavity in the blastula.
The ventricles are the fluid-filled cavities of the brain.
The four fluid-filled cavities in the brain are called ventricles. They are interconnected and filled with cerebrospinal fluid, which helps to protect the brain and spinal cord, provide nutrients, and remove waste.
cytoplasm
Yes. Ultrasound is good at detecting and identifying fluid filled sacs such as cysts.
A cyst is a fluid filled sac. Bilateral means both, therefore the meaning is: Fluid filled sacs in both breasts.
the morula develops into a hollow, fluid-filled ball of cells called a blastocyst.
it is the amneotic fluid.
a blister
maybe
the bladder
It's a vacuole.