The Integumentary System | Dermis скачать в хорошем качестве

The Integumentary System | Dermis

The central focus of this medical video lecture on sqadia.com revolves around the Integumentary System. This Histology video offers a detailed exploration of various components, including the epidermis, melanocytes, and dendritic and tactile cells. Additionally, it delves into the dermis, hypodermis, and epidermal derivatives, encompassing structures such as hair, nails, sebaceous glands, exocrine glands, and apocrine sweat glands, elucidating their diverse functions. ▬ 📌 Epidermis Commencing this segment, the lecture delves into the composition of both thick and thin epidermal layers. Subsequent discussions cover the layers of the epidermis, namely the stratum basale, stratum spinosum, and stratum granulosum. The lecture further explores topics such as psoriasis, melanocytes, dendritic cells, and tactile cells in comprehensive detail. ▬ 📌 Dermis The dermis is characterized by connective tissue, blood vessels, oil and sweat glands, nerves, and hair follicles. It comprises a thin upper layer known as the papillary dermis and a thick lower layer called the reticular dermis. The papillary dermis, located at the top, is described as having collagen fibers, while the reticular dermis, situated beneath, primarily houses dermal elastic fibers. ▬ 📌 Hypodermis In discussing the hypodermis, the lecture emphasizes its relationship with underlying fascia, bones, and muscles. Although not strictly considered part of the skin, the boundary between the hypodermis and dermis may be challenging to discern. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, serving as a storage site for fat and providing insulation and cushioning for the integument. ▬ 📌 Epidermal Derivatives The lecture further explores epidermal derivatives, including hair, nails, and various skin glands. Subsequently, it provides a comprehensive explanation of sebaceous, exocrine, and apocrine sweat glands. ▬ 📌 Functions of Skin The initial focus in this section is on the protective and sensory functions of the skin. The lecture then elaborates on thermoregulation, and metabolic functions, and offers a detailed discussion on sexual signaling. ▬ 🎬 5500+ sqadia.com Medical Videos ▬▬▬▬▬▬▬▬▬▬ 👩🏻‍⚕️ Accessible Medical Student Education 24/7/365 💡 Simplifying Medical Learning 💪 Study Hard, Dream Big, Achieve More