PCBI101 LEC: INTEGUMENTARY SYSTEM
Cards (156)
- comprises the skin and its accessory organs like hair, nail and glands.
- its capability to renew itself every 28 days.
- Come Lets Get Sun Burnt
- The first layer of skin. It is made of a thin layer of squamous cells. This layer includes two distinct types: thick skin and thin skin. It consists of five layers.
- The first stage of wound healing is characterized by the formation of blood clots which aim to prevent too much blood loss.
- structures. It consists of two layers.
- The cascade of healing is divided into four overlapping phases:
- When the skin is injured, our body sets into motion an automatic series of events, often referred to as the
- Blood vessels around the wound narrow. This helps to stop the bleeding. Blood platelets, which are the clotting cells in the blood, clump together to make a “plug†in the wound. Clotting or coagulation includes a protein called "fibrin"". It’s “blood glue†that makes a net to hold the platelet plug in place which is the presence of a scab over the wound. Then, inflammation, which involves cleaning and healing."
- Clotting or coagulation includes a protein called ____________. It’s “blood glue†that makes a net to hold the platelet plug in place which is the presence of a scab over the wound. Then, inflammation, which involves cleaning and healing.
- Oxygen-rich red blood cells come to the site to create new tissue. Chemical signals in the body tell cells around the wound to make elastic tissues called collagen. This helps to repair the skin and tissues in the wound. Collagen is like a scaffold that other cells can be built on. At this stage in healing, a fresh, raised, red scar is visible. The scar will slowly fade in color and look flatter.
- Chemical signals in the body tell cells around the wound to make elastic tissues called __________. This helps to repair the skin and tissues in the wound. ____________ is like a scaffold that other cells can be built on. At this stage in healing, a fresh, raised, red scar is visible. The scar will slowly fade in color and look flatter.
- appearance. Itching or tightness over the area can also be felt while the body continues to repair and strengthen the injured area
- Is an organ system consist of skin and its accessory parts namely hair, nails, and exocrine glands.
- FUNCTIONS OF INTEGUMENTARY SYSTEM
- The skin is consists of three layers:
- the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
- beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
- fat and connective tissue. It is well vascularized, with loose-areolar connective tissue and adipose tissue, for fat storage and provides insulation and acts as cushioning for the integument.
- Also known as stratum germinativum; it is the deepest layer of epidermis.
- The spiny layer of the epidermis.
- It is composed of layers of "flattened keratinocytes" undergoing "apoptosis." Likewise, it has lamellar "granules" that release lip-rich secretion for water-repellent sealant to the skin.
- This is the thickened skin of the palms and soles, composed of 4-6 layers of flat dead cells.
- This is the outermost layer of the epidermis, which is formed by the accumulations of dead cells (keratinocytes) in the outermost epidermis, that are eventually shed. The rate of cell division increases where the skin is rubbed or where pressure is applied to the skin regularly, causing the growth of thickened areas called calluses on the palms and soles, and keratinized conical masses on the toes called corns
- also known as corium. It is consist of two layers: the papilary ad reticular
- This layer is made of [ loose, areolar connective tissue. ] , Its superficial layer projects into the stratum basale of the epidermis to form [ finger-like dermal papillae. ]
- consists of dense, [ irregular connective tissue.] This layer is well vascularized and has a rich sensory and sympathetic nerve supply. The reticular layer appears reticulated (net-like) due to a tight meshwork of fibers.
- Peripheral ___________ is when there is a bluish discoloration to your hands or feet. It's usually caused by low oxygen levels in the red blood cells or problems getting oxygenated blood to your body
- the eyes look [ yellow. ] __________occurs when there is too much bilirubin (a yellow pigment) in the blood—a condition called hyperbilirubinemia.
- when there is too much bilirubin (a yellow pigment) in the blood—a condition called
- It came from the Greek [ erythros ], meaning [red]. It is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation.
- ï‚· A burn is a damage to body's tissues caused by heat, chemicals, electricity, sunlight, or radiation.
- LEVELS OF BURN
- also known as “superficial burn†characterized by redness, minor swelling, pain and non-blistered skin.
- more serious because the damage extends beyond the top layer of skin. with blisters and some thickening of the skin.
- widespread thickness with a white, leathery appearance.
- It is a genetic disorder that affects (completely or partially) the color of skin, hair, and eyes due to the inability of melanocytes to produce melanin.
- A skin condition in which melanocytes in certain areas lose the ability to produce melanin, possibly due to an autoimmune reaction that leads to loss of color in patches.