DEV2022 Lecture Notes - Lecture 4: Fascia, Neural Crest, Surface Ectoderm
Document Summary
Apocrine = found in selective areas on the skin. These glands are derived from the epidermis and are linked to the epidermis by a duct, which can be very long/short. In terms of the sweat glands, the duct terminates a coiled arrangement of epithelial cells (hollow lumen inside) and each one of these glands can duplicate, renew or regenerate in itself because they all contain stem cells. Deep to that is a layer of fat = superficial fascia. And deep to that could be deep fascia or muscle. Within the dermis, we find many neurovascular and lymphatic structures. There are sensory receptors scattered through the dermis. It is within the dermis where we find glands that are derived from the surface epithelium. It is an organ that responds to the external environment because has sensory nerve receptors. It is responsible for vitamin d production, which is essential for bone health.
