The common term for a raised bump on the epidermis filled with a watery fluid is a blister. In medical terms, a small blister is a vesicle, while a large blister is a bulla.
Myxomatous is the medical term meaning pertaining to a tumor filled with mucus.
Neoplasm is the medical term meaning tumor; a neoplasm can be malignant (cancerous) or benign.
'vesicles' IS the medical term for small fluid-filled sacs or cysts, such as a blister.
The medical term for a cyst in the epididymis filled with milk fluid containing sperm is a spermatocele.
The placenta.
A bursa.
The ventricles are the fluid-filled cavities of the brain.
ganglionganglion cyst
Mainly dead epithelial cells consisting almost entirely of the protein Keratin.
The medical term is "paranasal sinuses." These are air-filled cavities located within the bones surrounding the nasal cavity. They are important for natural drainage and humidifying the air we breathe.
Epidermis
bones