practice session10

- The dermis is divided into two layers: 1-the papillary layers. 2-the reticular layers. - The surface of the dermis is very irregular and has many projections (dermal papillae) that interdigitate with the evaginations (epidermal ridges) of the epidermis
Dermis
The dermis is a con3- Sweat gland: It is an epithelial (epidermal) derivatives embedded in the dermis. - Sweat gland is a simple tubular coiled gland, has two parts: secretory portion and duct, the duct is smaller than the secretory portion, has narrow lumen and consists of two layers (stratified cuboidal) of more acidophilic epithelial cells filled with mitochondria. - There are two types of sweat glands: A: Merocrine (Eccrine) sweat gland. B: Apocrine sweat gland.nective tissue, consists of (cells, fibers and ground substance can contain blood and lymphatic vessels, nerves and glands) that supports the epidermis and binds it to the subcutaneous tissue (hypodermis).
Thicker than the epidermis.3- Sweat gland: It is an epithelial (epidermal) derivatives embedded in the dermis. - Sweat gland is a simple tubular coiled gland, has two parts: secretory portion and duct, the duct is smaller than the secretory portion, has narrow lumen and consis3- Sweat gland: It is an epithelial (epidermal) derivatives embedded in the dermis. - Sweat gland is a simple tubular coiled gland, has two parts: secretory portion and duct, the duct is smaller than the secretory portion, has narrow lumen and consists of two layers (stratified cuboidal) of more acidophilic epithelial cells filled with mitochondria. - There are two types of sweat glands: A: Merocrine (Eccrine) sweat gland. B: Apocrine sweat gland.ts of two layers (stratified cuboidal) of more acidophilic epithelial cells filled with mitochondria. - There are two types of sweat glands: A3- Sweat gland: It is an epithelial (epidermal) derivatives embedded in the dermis. - Sweat gland is a simple tubular coiled gland, has two parts: secretory portion and duct, the duct is smaller than the secretory portion, has narrow lumen and consists of two layers (stratified cuboidal) of more acidophilic epithelial cells filled with mitochondria. - There are two types of sweat glands: A: Merocrine (Eccrine) sweat gland. B: Apocrine sweat gland.: Merocrine (3- Sweat gland: It is an epithelial (epidermal) derivatives embedded in the dermis. - Sweat gland is a simple tubular coiled gland, has two parts: secretory portion and duct, the duct is smaller than the secretory portion, has narrow lumen and consists of two layers (stratified cuboidal) of more acidophilic epithelial cells filled with mitochondria. - There are two types of sweat glands: A: Merocrine (Eccrine) sweat gland. B: Apocrine sweat gland.Eccrine) sweat gland. B: Apocrine sweat gland.