STRUCTURE OF THE SKIN
The peel is the largest non visceral organ likewise equally the largest mammalian tissue.
Thickness: it varies inwards thickness from portion to region, it is thickest at the sole of the palms in addition to foot. It is thinnest at the eyelids in addition to the genitals.
Layers: the peel is composed of 2 layers but at that topographic point is a 3rd layer made upward of adipose tissues.
Layers include:
- Epidermis – outermost layer
- Dermis – inner layer
- Hypodermis – innermost layer
Epidermis:
This is the outermost protective layer of the peel made upward of 5 layers. These 5 layers are condensed into iii functional layers
(a) Corneal layer (b) spinal layer (stratum spinosum) (c) lucid layer (stratum incidium) (d) granular layer (s. granulosum) € germinal layer (stratum germinativium)
The iii condensed layers are equally follows:
- CORNIFIELD LAYER
- GRANULAR LAYER
- MALPIGHIAN LAYER
CORNIFIED LAYERS:
This is a layer of squamous in addition to few cuboidal epithelial cells establish inwards numerous layers (strata). It is covered alongside a tough H2O proof poly peptide called keratin (fibrous protein) this layer receives an influx of dead cells from the granular layer continually to supersede worn out cells from abrasion or friction processes. Hence the peel is said to hold upward covered alongside stratified squamous keratinized epithelium (SSKE)
GRANULAR LAYER:
This layer consists of granular proteins in addition to quondam epithelial cells nevertheless undergoing their final stage of mitosis.
These cells come upward from the Malpighian layer in addition to convey but acquired keratin. The cells are glassy in addition to lucid because of the presence of granules.
MALIPIGHIAN LAYER:
This is a layer of actively dividing cells. It is the root of the cells of the cornified in addition to granular layer it has abundance of melanocytes that secrete the paint melanin responsible for peel colour. This layer is good vascularised. It is modified at to a greater extent than or less places to form (a) sebaceous glands (b) pilus follicles (c) effort glands
DERMIS:
The dermis is the inner layer of the skin. It has inwards it papillary muscles in addition to reticular proteins. The papillary muscles attach to the base of operations of the pilus follicles causing them to stand upward or autumn when it contracts or relaxes. The reticular proteins stretches into the adipose tissue causing cleavage lines. It is enriched alongside a capillary network of arteries in addition to veins. Present bulk inwards the dermis are.
- The effort gland (Apocrine in addition to Merocrine) the effort glands bring together the capillary bed allowing tabular array salt in addition to H2O to evaporate from the peel equally effort to a greater extent than of these glands accomplish cast inwards the armpits in addition to gernitalia. The effort glands accomplish the surface of the peel via ducts in addition to pores.
- Sebaceous glands
These glands secrete an oily fluid that runs the length of pilus shafts called subum. Sebum gives the pilus a shiny lustre, makes the epidermis H2O proof in addition to supple. Infestation of the stone oil inwards these pores results inwards ACNE (pimple)
- Hair follicles
These are deep piths formed past times invagination of the epidermis into the dermis. At the base of operations of the follicles are Malpighian cells that locomote on dividing to hit pilus nervus endings in addition to blood vessels run the price in addition to thus permit the peel to experience sensations of hurting in addition to touch.
4 major kinds of sensory nervus endings are establish inwards the skin
a. Touch receptors (meissner's corpuscles)
Picks the feel of touch
b. Pam receptors ( complimentary nervus endings)
c. Pressure receptors (pacinian corpuscle)
d. Thermoreceptor
Picks signals of mutual depression temperature in addition to heat
Other mechanoreceptors include Ruffini corpuslces
Hypodermis
This is a layer of adipose tissue. It is composed of especial cells called adipocytes. The thickness of this layer varies alongside regions but massive at the gluteus areas, pectus in addition to soles. This layer is involved inwards insulation
STEP 2: DIAGRAM OF THE SKIN
STRUCTURE OF THE SKIN
The peel is the largest non visceral organ likewise equally the largest mammalian tissue.
Thickness: it varies inwards thickness from portion to region, it is thickest at the sole of the palms in addition to foot. It is thinnest at the eyelids in addition to the genitals.
Layers: the peel is composed of 2 layers but at that topographic point is a 3rd layer made upward of adipose tissues.
Layers include:
- Epidermis – outermost layer
- Dermis – inner layer
- Hypodermis – innermost layer
Epidermis:
This is the outermost protective layer of the peel made upward of 5 layers. These 5 layers are condensed into iii functional layers
(a) Corneal layer (b) spinal layer (stratum spinosum) (c) lucid layer (stratum incidium) (d) granular layer (s. granulosum) € germinal layer (stratum germinativium)
The iii condensed layers are equally follows:
- CORNIFIELD LAYER
- GRANULAR LAYER
- MALPIGHIAN LAYER
CORNIFIED LAYERS:
This is a layer of squamous in addition to few cuboidal epithelial cells establish inwards numerous layers (strata). It is covered alongside a tough H2O proof poly peptide called keratin (fibrous protein) this layer receives an influx of dead cells from the granular layer continually to supersede worn out cells from abrasion or friction processes. Hence the peel is said to hold upward covered alongside stratified squamous keratinized epithelium (SSKE)
GRANULAR LAYER:
This layer consists of granular proteins in addition to quondam epithelial cells nevertheless undergoing their final stage of mitosis.
These cells come upward from the Malpighian layer in addition to convey but acquired keratin. The cells are glassy in addition to lucid because of the presence of granules.
MALIPIGHIAN LAYER:
This is a layer of actively dividing cells. It is the root of the cells of the cornified in addition to granular layer it has abundance of melanocytes that secrete the paint melanin responsible for peel colour. This layer is good vascularised. It is modified at to a greater extent than or less places to form (a) sebaceous glands (b) pilus follicles (c) effort glands
DERMIS:
The dermis is the inner layer of the skin. It has inwards it papillary muscles in addition to reticular proteins. The papillary muscles attach to the base of operations of the pilus follicles causing them to stand upward or autumn when it contracts or relaxes. The reticular proteins stretches into the adipose tissue causing cleavage lines. It is enriched alongside a capillary network of arteries in addition to veins. Present bulk inwards the dermis are.
- The effort gland (Apocrine in addition to Merocrine) the effort glands bring together the capillary bed allowing tabular array salt in addition to H2O to evaporate from the peel equally effort to a greater extent than of these glands accomplish cast inwards the armpits in addition to gernitalia. The effort glands accomplish the surface of the peel via ducts in addition to pores.
- Sebaceous glands
These glands secrete an oily fluid that runs the length of pilus shafts called subum. Sebum gives the pilus a shiny lustre, makes the epidermis H2O proof in addition to supple. Infestation of the stone oil inwards these pores results inwards ACNE (pimple)
- Hair follicles
These are deep piths formed past times invagination of the epidermis into the dermis. At the base of operations of the follicles are Malpighian cells that locomote on dividing to hit pilus nervus endings in addition to blood vessels run the price in addition to thus permit the peel to experience sensations of hurting in addition to touch.
4 major kinds of sensory nervus endings are establish inwards the skin
a. Touch receptors (meissner's corpuscles)
Picks the feel of touch
b. Pam receptors ( complimentary nervus endings)
c. Pressure receptors (pacinian corpuscle)
d. Thermoreceptor
Picks signals of mutual depression temperature in addition to heat
Other mechanoreceptors include Ruffini corpuslces
Hypodermis
This is a layer of adipose tissue. It is composed of especial cells called adipocytes. The thickness of this layer varies alongside regions but massive at the gluteus areas, pectus in addition to soles. This layer is involved inwards insulation
STEP 2: DIAGRAM OF THE SKIN
STRUCTURE OF THE SKIN
The peel is the largest non visceral organ likewise equally the largest mammalian tissue.
Thickness: it varies inwards thickness from portion to region, it is thickest at the sole of the palms in addition to foot. It is thinnest at the eyelids in addition to the genitals.
Layers: the peel is composed of 2 layers but at that topographic point is a 3rd layer made upward of adipose tissues.
Layers include:
- Epidermis – outermost layer
- Dermis – inner layer
- Hypodermis – innermost layer
Epidermis:
This is the outermost protective layer of the peel made upward of 5 layers. These 5 layers are condensed into iii functional layers
(a) Corneal layer (b) spinal layer (stratum spinosum) (c) lucid layer (stratum incidium) (d) granular layer (s. granulosum) € germinal layer (stratum germinativium)
The iii condensed layers are equally follows:
- CORNIFIELD LAYER
- GRANULAR LAYER
- MALPIGHIAN LAYER
CORNIFIED LAYERS:
This is a layer of squamous in addition to few cuboidal epithelial cells establish inwards numerous layers (strata). It is covered alongside a tough H2O proof poly peptide called keratin (fibrous protein) this layer receives an influx of dead cells from the granular layer continually to supersede worn out cells from abrasion or friction processes. Hence the peel is said to hold upward covered alongside stratified squamous keratinized epithelium (SSKE)
GRANULAR LAYER:
This layer consists of granular proteins in addition to quondam epithelial cells nevertheless undergoing their final stage of mitosis.
These cells come upward from the Malpighian layer in addition to convey but acquired keratin. The cells are glassy in addition to lucid because of the presence of granules.
MALIPIGHIAN LAYER:
This is a layer of actively dividing cells. It is the root of the cells of the cornified in addition to granular layer it has abundance of melanocytes that secrete the paint melanin responsible for peel colour. This layer is good vascularised. It is modified at to a greater extent than or less places to form (a) sebaceous glands (b) pilus follicles (c) effort glands
DERMIS:
The dermis is the inner layer of the skin. It has inwards it papillary muscles in addition to reticular proteins. The papillary muscles attach to the base of operations of the pilus follicles causing them to stand upward or autumn when it contracts or relaxes. The reticular proteins stretches into the adipose tissue causing cleavage lines. It is enriched alongside a capillary network of arteries in addition to veins. Present bulk inwards the dermis are.
- The effort gland (Apocrine in addition to Merocrine) the effort glands bring together the capillary bed allowing tabular array salt in addition to H2O to evaporate from the peel equally effort to a greater extent than of these glands accomplish cast inwards the armpits in addition to gernitalia. The effort glands accomplish the surface of the peel via ducts in addition to pores.
- Sebaceous glands
These glands secrete an oily fluid that runs the length of pilus shafts called subum. Sebum gives the pilus a shiny lustre, makes the epidermis H2O proof in addition to supple. Infestation of the stone oil inwards these pores results inwards ACNE (pimple)
- Hair follicles
These are deep piths formed past times invagination of the epidermis into the dermis. At the base of operations of the follicles are Malpighian cells that locomote on dividing to hit pilus nervus endings in addition to blood vessels run the price in addition to thus permit the peel to experience sensations of hurting in addition to touch.
4 major kinds of sensory nervus endings are establish inwards the skin
a. Touch receptors (meissner's corpuscles)
Picks the feel of touch
b. Pam receptors ( complimentary nervus endings)
c. Pressure receptors (pacinian corpuscle)
d. Thermoreceptor
Picks signals of mutual depression temperature in addition to heat
Other mechanoreceptors include Ruffini corpuslces
Hypodermis
This is a layer of adipose tissue. It is composed of especial cells called adipocytes. The thickness of this layer varies alongside regions but massive at the gluteus areas, pectus in addition to soles. This layer is involved inwards insulation
STEP 2: DIAGRAM OF THE SKIN
Classwork:
1. Mention iii accessory organs of the peel in addition to the world their functions
2. Which of the next is non component of the epidermis (a) sebaceous gland (b) capillary bed (c) effort gland (d) pilus follicle
3. The paint responsible for peel colours is ________
4. Mention four types of nervus endings inwards the peel
Summary:
The peel is the widest organ in addition to tissue of the mammalian body. It has 2 layers namely the epidermis in addition to the dermis. The diagram of the peel shows diverse glands in addition to cells making upward the skin
Classwork:
1. Mention iii accessory organs of the peel in addition to the world their functions
2. Which of the next is non component of the epidermis (a) sebaceous gland (b) capillary bed (c) effort gland (d) pilus follicle
3. The paint responsible for peel colours is ________
4. Mention four types of nervus endings inwards the peel
Summary:
The peel is the widest organ in addition to tissue of the mammalian body. It has 2 layers namely the epidermis in addition to the dermis. The diagram of the peel shows diverse glands in addition to cells making upward the skin
Classwork:
1. Mention iii accessory organs of the peel in addition to the world their functions
2. Which of the next is non component of the epidermis (a) sebaceous gland (b) capillary bed (c) effort gland (d) pilus follicle
3. The paint responsible for peel colours is ________
4. Mention four types of nervus endings inwards the peel
Summary:
The peel is the widest organ in addition to tissue of the mammalian body. It has 2 layers namely the epidermis in addition to the dermis. The diagram of the peel shows diverse glands in addition to cells making upward the skin
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