Immune & Integumentary System Flashcards
Organ System:
1. System composed of cells and organs that protect the body against pathogens.
Immune System
Organ System:
Immune System:
1. Microorganisms that cause infections in the body
Pathogen
Organ System:
Immune System:
1. Substances that causes the immune system to produce antibodies against it
Antigen
Organ System:
Immune System:
1. Any substance that contains weakened or inactive parts of a particular organisms which is used to stimulate the production of antibodies.
Vaccine
Organ System:
Immune System:
1. The ability to ward off damage or disease through defenses
Immunity
Organ System:
Immune System:
Two Types of Immunity
Innate and Adaptive Immunity
Organ System:
Immune System:
Two Types of Immunity:
1. Defenses that are present at birth
Innate Immunity
Organ System:
Immune System:
Two Types of Immunity:
1. Defenses that involve specific recognition of a pathogen once it has breached the innate immunity defenses.
2. Adapts to handle a specific pathogen.
Adaptive Immunity
Organ System:
1. System that helps maintain a constant body temperature, protects the body, and provides sensory information about the surrounding environment.
Integumentary System
Organ System:
Integumentary System:
1. Covers the external surface of the body and is the largest organ of the body in weight.
Skin
Organ System:
Integumentary System:
Layers of the Skin
- Epidermis
- Dermis
- Hypodermis
Organ System:
Integumentary System:
Layers of the Skin:
1. Superficial thinner portion of the skin
2. Contains four principal types of cells: Keratinocytes, Melanocytes, Intraepidermal macrophages, tactile epithelial cells.
Epidermis
Organ System:
Integumentary System:
1. A tough, fibrous protein that helps protect the skin and underlyng tissues.
Keratin
Organ System:
Integumentary System:
1. A pigment that contributes to skin color and absorbs damaging ultraviolet (UV) light.
Melanin
Organ System:
Integumentary System:
1. Cells that participate in immune responses mounted against microbes that invade the skin.
2. Help other cells of the immune system to recognize an invading microbe and destroy it.
Langerhans Cell or Intraepidermal Macrophages
Organ System:
Integumentary System:
Cells in the skin that detects touch sensations.
Tactile Epithelial Cells
Organ System:
Integumentary System:
Layers of the Epidermis`
- Basale
- Spinosum
- Granulosum
- Lucidum
- Corneum
Organ System:
Integumentary System:
Layers of the Epidermis:
1. Deepest layer of the epidermis composed of a single row of cuboidal or columnar keratinocytes.
2. Some cells in this layer are stem cells that help produce new keratinocytes.
Stratum Basale
Organ System:
Integumentary System:
Layers of the Epidermis:
1. Consists of numerous keratinocytes arranged in 8 -10 layers
Stratum Spinosum
Organ System:
Integumentary System:
Layers of the Epidermis:
1. Middle layer
2. Consists of 3 - 5 layers of flattened keratinocytes that are undergoing apoptosis.
Stratum Granulosum
Organ System:
Integumentary System:
Layers of the Epidermis:
1. Present only in thick skin of areas such as fingertips, palms, and soles.
2. Consists of four to six layers of flattened, clear, dead keratinocytes.
3. Provides an additional level of toughness in the region of thick skin.
Stratum Lucidum
Organ System:
Integumentary System:
Layers of the Epidermis:
1. Consists of average of 25 to 30 layers of flattened dead keratinocytes.
2. Constant exposure of this skin layer to friction stimulates increased cell production and keratin production that results in the formation of a callus.
Stratum Corneum
Organ System:
Integumentary System:
Layers of the Skin:
1. Layer of the skin that has the ability to stretch and recoil easily.
2. Much thicker than the epidermis.
3. Where blood vessels, nerves, glands, and hair follicles are embedded.
Dermis
Organ System:
Integumentary System:
Layers of the Skin:
1. Consists of adipose tissues that serves as a storage depot for fat and contains large blood vessels that supply the skin.
Subcutaneous Layer or Hypodermis
Organ System:
Integumentary System:
Skin Glands:
1. Oil glands
2. Secretes Sebum
3. Prevents hairs from drying out, prevent water loss from skin.
Sebaceous Glands
Organ System:
Integumentary System:
Skin Glands:
1. Sweat glands
2. Secretes sweat
3. Helps regulate the body temperature, waste removal, and stimulated during emotional stress and sexual excitement.
Sudoriferous Glands
Organ System:
Integumentary System:
Skin Glands:
1. Modified sweat glands in the ear.
2. Secretes earwax
3. Helps impede entrance of foreign bodies into external ear canals.
Ceruminous Glands
Organ System:
Integumentary System:
1. Plates of tightly packed, hard, dead, keratinized epidermal cells that form a clear, solid covering.
Nails