Spinal ganglion is a cluster of neurons in a dorsal root of a spinal nerve. Spinal ganglion help transmit the sensory messages of pain and touch.

A simple squamous epithelium is a single layer of flat cells in contact with the basal lamina (one of the two layers of the basement membrane) of the epithelium. This type of epithelium is often permeable and occurs where small molecules need to pass quickly through membranes via filtration or diffusion.

The cells on the surface of stratified squamous keratinized epithelium are very flat. Not only are they flat, but they are no longer alive. They have no nucleus or organelles. They are filled with a protein called keratin, which is what makes our skin waterproof.

Simple cuboidal epithelium is a type of epithelium that consists of a single layer of cuboidal (cube-like) cells. These cuboidal cells have large, spherical and central nuclei.

This is a cross section of a human kidney. It has simple cuboidal epithelium. The cells are roughly similar in width and length and their main function is to act as covering and secretion. Other parts with simple cuboidal epithelium include the ovary and thyroid.

Skin is very important part of our body. It functions as a protective coat. Its main function is to act as a barrier to protect the body from the outside world. It also protects our body from diseases and regulates our temperature.

Bone tissue (osseous tissue) is a hard tissue, a type of dense connective tissue. It has various functions such as storing minerals, providing internal support, protecting vital organs, enabling movement, and providing attachment sites for muscles and tendons.

The mammalian ureter contains two main cell types: a multilayered water-tight epithelium called the urothelium, surrounded by smooth muscle layers that, by generating proximal to distal peristaltic waves, pump urine from the renal pelvis toward the urinary bladder.