Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Generally speaking, what are sudoriferous glands?
|
They are sweat glands. 25,000,000 of them in the body
|
|
|
What are the 2 types of sudoriferous glands?
|
1) Eccrine glands,merocrine,perform exocytosis 2)Apocrine glands in axillary & anogenital, fatty-protein food for bacteria. Bact. excretes an odor
|
|
|
What is sweat?
|
A blood filtrate, blood vessels leaking out fluids into the gland, 99% water, salt, vitamin C, metabolic wastes, lactic acid,antibodies,& Dermacidin
|
|
|
What is the function or purpose of sweat?
|
1) Antibacterial because bacteria don't like environ. that is too salty or acidic, 2) A Coolant for the body. Energy is lost & body is cooled.
|
|
|
What are the 2 modified sudoriferous glands?
|
1) Ceruminous gland:secretes cerumen,in ear canal,odorous to insects; repellent.2)Mammarygland: induced hormonally to produce milk
|
|
|
What is the skin appendage called the sebaceous gland and its distinctions?
|
Next to hair follicle, extretions(lipids & cell fragments called sebum) released on hair:cytolysis,(a holocrine gland), shinyhair,acidic,antibacterial,
|
|
|
What are the terms used for blocked or infected-inflamed sebaceous glands?
|
A blocked seb. gland is a white head. Dried out blocked gland: blackhead. Inflamed/ infected w/S. Aureus is Acne. pus is dead wbc, leftover army
|
|
|
From deepest layers to superficial what are the structures.
|
Phalnx:bone of fingertip,dermis& hypodermis,nail matrix-nlbed, root of nail-body-to free edge,undrneath: hyponychium,proximalnl fold-eponyn
|
|
|
What are the characteristics of nails?
|
Scale-like modifications of epid-highly keratinized, on dorsal surf.-distal end of finger, prod. by high mitotic cells-n-matrix, rapid, toughens fingers.
|
|
|
What are the purposes for hair?
|
Hair: another append. not in palms & feet, protcts from insects, eyebrows shade from light, prevent sweat in eye, eylash prevent dust in eye.
|
|
|
What are the 8 structure parts/functions of the hair?
|
Pg 161
|
|
|
Where is the color placed in the hair?
|
Into the cortex, not the medula.
|
|
|
What are the types of injury?
|
Partial thick. wnd:epidermis, no bld vess involved, replaces self,noscar. Full thickness wound:dermis cuts blood vessels, not heald/reg/but fibros
|
|
|
3 stages of tissue repair in full thickness.
|
Inflammatory stage, Proliferation stage, Remodeling
|
|
|
What is inolved in the inflammatory stage of tissue repair
|
1)Hemostasis:(vasosconstriction & platelet aggregation) & 2)Inflammation(vasodilation, recruitment, vessel permeability)
|
|
|
What is hemostasis?
|
Blood stability constricts, stops blood flow called vasoconstriction
|
|
|
What is platelet aggregation?
|
Blood clotting
|
|
|
What is vasodilation?
|
Inflammation part of inflammatory stage: non-cut vessels and capillaries swell (lumen expands) and leak induced by mast and macrophage
|
|
|
What is recruitment?
|
???
|
|
|
What 2 things does phagocytosis do?
|
Kill invading bacteria-antibacterial
and Wound debridement: gets rid of dead material cleans up or eats dead parts. |
|
|
What 3 stages are involved in the 2day to 3weeks of the Proliferation stage of tissue repair?
|
Granulation, Contraction, Epithelization
|
|
|
What is involved in the Granulation part of the proliferative stage of tissue repair.
|
Granulation occurs when 2 things happen:1) new vessels, new blood growth: angiogenesis, 2) fibroblast growth-making collagen
|
|
|
What is involved in the Contraction part of the proliferative stage of tissue repair.
|
Contraction is when collagen fibers pull the wound together. Fibroblasts lay down collagen fibers.
|
|
|
What is involved in the Epithelization part of the proliferative stage of tissue repair.
|
Building new Epithelium
|
|
|
What is the 3rd stage of Tissue Repair
|
Remodeling: which is continue building of scar tissue, so it's white in color, has 80% strength of the original tissue, and takes 3weeks to 2years.
|
