Hair cells
papillary layer
keratin
A filament light bulb is not filled with oxygen because oxygen can cause the filament to burn quickly. The bulb is usually filled with an inert gas like argon to prevent the filament from burning out too quickly and to protect it from oxidation.
A lump on the back filled with cheesy-smelling fluid could potentially be a sebaceous cyst. Sebaceous cysts are noncancerous lumps filled with keratin, a protein found in hair, nails, and skin. It is recommended to have it evaluated by a healthcare provider for proper diagnosis and treatment.
Hair cells
papillary layer
A keratin-filled cyst, also known as an epidermoid cyst, is a non-cancerous growth filled with keratin protein and dead skin cells. It forms when skin cells move deeper into the skin instead of shedding normally, usually due to a blockage of a hair follicle or damage to the skin.
keratin
The epidermis is filled with keratinocytes, which are the main type of cell in the outer layer of the skin. These cells produce the protein keratin, helping to provide structure and protection to the skin. Other cells found in the epidermis include melanocytes (producing pigment) and Langerhans cells (part of the immune system).
I think so
A filament light bulb is not filled with oxygen because oxygen can cause the filament to burn quickly. The bulb is usually filled with an inert gas like argon to prevent the filament from burning out too quickly and to protect it from oxidation.
keratinization, where the keratinocyte undergoes a process of terminal differentiation and ultimately becomes a dead, flat cell filled with the protein keratin.
No, fingernails are made up of dead cells. The hard outer layer of the nail is composed of a protein called keratin that is produced by cells in the nail bed but once they become fully formed, they are essentially dead tissue.
A lump on the back filled with cheesy-smelling fluid could potentially be a sebaceous cyst. Sebaceous cysts are noncancerous lumps filled with keratin, a protein found in hair, nails, and skin. It is recommended to have it evaluated by a healthcare provider for proper diagnosis and treatment.
The outermost layer of the skin, called the stratum corneum, is made up mostly of dead cells filled with keratin. These cells provide a protective barrier against environmental stressors and help prevent water loss from the skin.
Many animal 'horns' are made of a-keratin which is the same stuff that forms hair, claws and fingernails. Strictly speaking these are not classed as horns. As these keratin cells die they harden and then special sections of the skin transform the keratin into a horn (or claw or fingernail or hair, depending on the special skin cells.) Keratin is a protein and its chemistry will vary a fair bit. The keratin usually covers a core of living bone. A link can be found below to check facts and assist an investigator in learning more. Horns are properly made from bone.