click below
click below
Normal Size Small Size show me how
A&P Chapter 5
Integumentary System
| Question | Answer |
|---|---|
| 2 regions of the skin | Epidermis, dermis |
| Most superficial layer of skin | Epidermis |
| 4 cell types found in the epidermis | Keratinocyte, melanocyte, epidermal dendritic cells, tactile cells |
| Fibrous protein that gives skin protective properties | Keratin |
| Cell that synthesizes melanin | Melanonocyte |
| Langerhans cells | Epidermal dendritic cells |
| Cells that activate the immune system | Epidermal dendritic cells |
| Tactile sensory receptor cell | Merkel cells |
| Most superficial layer of the epidermis | Stratum Corneum |
| Deepest epidermal layer | Stratum Basale |
| aka Stratum germinativum | Stratum Basale |
| Layer responsible for cell renewal | Stratum Basale |
| aka prickly layer | Stratum Spinosum |
| Contains keratinocytes linked by desmosomes | Stratum Spinosa |
| This layer contains a high volume of Langerhans cells | Prickly layer |
| Lamellated granules | Stratum granulosum |
| 3-5 cell layer where keratization begins | stratum granulosum |
| Glycolipids which cause the skin to be waterproof are in which layer | Stratum granulosum |
| aka Horny layer | Stratum corneum |
| Thickest epidermal layer | stratum corneum |
| Layer with fully keratinized cells | stratum corneum |
| Layer found only in the thick skin | stratum lucidium |
| Layer above the stratum granulosum in the thick skin | stratum lucidium |
| Layer of skin associated with leather-"hide" | Dermis |
| Superficial layer of the dermis | Papillary layer |
| Layer of Areolar C.T. | Papillary layer |
| Projections of the papillary layer that project into the epidermis | dermal papillae |
| Friction ridges and sweat glands combine to form: | Fingerprints |
| Meissners corpuscles | Light touch receptors |
| Layer of the dermis made of dense irregular C.T. | Reticular layer |
| Thicker part of the dermis | Reticular layer |
| Bundles of collagen | Cleavage/tension lines |
| Dermal folds near joints | Flexure lines |
| Crimson pigment | Hemoglobin |
| Cyanosis | Bluing of skin during heart failure and severe respiratory disorders |
| aka merocrine glands | Eccrine glands |
| Sweat glands abundant on palms, soles of feet and forehead | Eccrine glands |
| 2 types of sweat glands | Eccrine and apocrine |
| aka sudoriferous glands | sweat glands |
| Sweating is regulated by this system | Autonomic nervous system |
| Most abundant sweat gland | Eccrine gland |
| Sweat glands activated by puberty | Apocrine glands |
| Sweat gland found in the axillary and genital areas | Apocrine gland |
| Gland found in the external ear | Ceruminous gland |
| Modified sweat gland | Mammary gland |
| Gland that produces cerumen | Ceruminous gland |
| Gland producing sebum | Sebaceous gland |
| Glands which dump product into the hair follicle | Apocrine and sebaceous |
| Holocrine type gland | Sebaceous gland |
| Glands activated during puberty | Apocrine and sebaceous |
| What forces sebum out of the hair follicle onto the skin? | Arrector pili |
| What is created by the low pH of the secretions on the skin? | Acid mantle |
| What forms the chemical barrier on the skin? | Acid mantle |
| What forms the physical barrier of the skin? | Keratinized cells and glycolipids |
| What creates the biological barrier of the skin? | Dendritic cells and macrophages |
| Unnoticeable sweating | Insensible sweating |
| Obvious sweating-visible | Sensible sweating |
| Pacinian corpuscles | Deep pressure sensors |
| How much blood can the skin hold? | 5% of total volume |
| Metabolic function of the skin | Sunlight turns cholesterol into inactive vit D |
| Skin as a secondary excretion organ | small amount of nitrogenous wastes in the sweat |
| Least malignant cancer | Basal cell carcinoma |
| Most malignant cancer | Melanoma |
| Cancer of the stratun basale cells | Basale cell carcinoma |
| Cancer of the keratinocytes of the stratum spinosa | Squamous cell carcinoma |
| Cancer of the melanocytes | Melanoma |
| Rules for recognizing melanoma | Asymmetry, Border, Color, Diameter |
| Tissue damage caused by heat | Burn |
| Body area burned | Rule of nines |
| Cheesy looking substance protecting the skin of a fetus | Vernix caseosa |