The integumentary system- This system is overlaying the outer body. • Anatomical location- The integumentary system is superior or external to the body. The organs that make up this system is the skin, glands, nails, hair, and sense receptors. In addition, the skeletal frame is superficial to the cutaneous membrane in the human body. • Key Anatomical features- The skin, nails, hair, and glands. • The skin- The cutaneous membrane is the toughest organ that the human body has, and it has three coating layers. One is the epidermis, the next is the dermis, and the last layer is the subcutaneous tissue known as the hypodermis. A. Epidermis - This outer layer has stratified squamous epithelium to make the skin solid and strong. The epidermis
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Dermis- The dermis layer is what secures the body together. The dermis is also made of fibrous tissue and has two major sections. One section is called the papillary layer and the other section is called the reticular layer. The dermis also has sensory receptors, blood vessels, and nerves. 1. The papillary layer- The papillary coating has dermal papillae and the covering is part of the higher dermal division. Most of the papillae have loops called capillary. They give the epidermis the source of nourishment it needs. Furthermore, other dermal papillae give shelter to pain and touch receptors. The papillary also produces fingerprints because the patterns it gives are naturally decided. 2. . The reticular layer- When referring to the skin, the reticular coating is deeper compared to the papillary layer. The reticular coating has an erratically connective tissue, blood vessels, different glands, and lamellar corpuscles. On the other hand, the dermis layer is strong because of the collagen fibers all over the dermis. The blood vessels that are a part of the dermis is what preserves the homeostasis in the body temperature. C. Hypodermis- This subcutaneous tissue is near the dermis and holds adipose tissue. The hypodermis is not involved with the skin, but the tissue gives a way to store …show more content…
Apocrine Glands- The apocrine glands work the armpit and genital body parts. Compared to the eccrine glands, the apocrine glands are superior. The job of the apocrine glands is to release inside the hair follicles.
• Key physiological functions – The purpose of the integumentary system is to protect deeper tissues in the human body from:
1. Mechanical damage - Mechanical damage, which causes bumps has keratin to signal the nervous system in case of damages.
2. Chemical damage- Chemical damage has waterproof cells with keratin and pain receptors to alarm the nervous system of damages.
3. Bacterial damaged - Bacteria can get into the hidden tissues, and damage them if the integumentary system does not protect them.
4. Ultraviolet radiation - Melanin protects the deeper tissues that can cause UV damage.
5. Thermal damaged - Thermal damaged has heat, cold, and pain receptors to protect the lowest tissues from any damages.
6. From becoming dehydrated - The body can become dehydrated if it is not producing enough water.
• Histology -
1. Keratinocytes- Keratinocytes involves epidermis cells.
2. Melanocytes- Melanocytes are like the body of a spider and makes up the colors in the skin such as brown and yellow. They are in the basale coating of the
Dermis- The dermis layer is what secures the body together. The dermis is also made of fibrous tissue and has two major sections. One section is called the papillary layer and the other section is called the reticular layer. The dermis also has sensory receptors, blood vessels, and nerves. 1. The papillary layer- The papillary coating has dermal papillae and the covering is part of the higher dermal division. Most of the papillae have loops called capillary. They give the epidermis the source of nourishment it needs. Furthermore, other dermal papillae give shelter to pain and touch receptors. The papillary also produces fingerprints because the patterns it gives are naturally decided. 2. . The reticular layer- When referring to the skin, the reticular coating is deeper compared to the papillary layer. The reticular coating has an erratically connective tissue, blood vessels, different glands, and lamellar corpuscles. On the other hand, the dermis layer is strong because of the collagen fibers all over the dermis. The blood vessels that are a part of the dermis is what preserves the homeostasis in the body temperature. C. Hypodermis- This subcutaneous tissue is near the dermis and holds adipose tissue. The hypodermis is not involved with the skin, but the tissue gives a way to store …show more content…
Apocrine Glands- The apocrine glands work the armpit and genital body parts. Compared to the eccrine glands, the apocrine glands are superior. The job of the apocrine glands is to release inside the hair follicles.
• Key physiological functions – The purpose of the integumentary system is to protect deeper tissues in the human body from:
1. Mechanical damage - Mechanical damage, which causes bumps has keratin to signal the nervous system in case of damages.
2. Chemical damage- Chemical damage has waterproof cells with keratin and pain receptors to alarm the nervous system of damages.
3. Bacterial damaged - Bacteria can get into the hidden tissues, and damage them if the integumentary system does not protect them.
4. Ultraviolet radiation - Melanin protects the deeper tissues that can cause UV damage.
5. Thermal damaged - Thermal damaged has heat, cold, and pain receptors to protect the lowest tissues from any damages.
6. From becoming dehydrated - The body can become dehydrated if it is not producing enough water.
• Histology -
1. Keratinocytes- Keratinocytes involves epidermis cells.
2. Melanocytes- Melanocytes are like the body of a spider and makes up the colors in the skin such as brown and yellow. They are in the basale coating of the