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Topic: Stratum germinativum


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In the News (Thu 26 Nov 09)

  
  Exam - USPharmacist
Stratum lucidum, stratum spinosum, stratum corneum, stratum germinativum, basal membrane
Stratum corneum, stratum malphigii, stratum germinativum, stratum spinosum, basal membrane
Stratum corneum, stratum spinosum, stratum granulosum, basal membrane
www.uspharmacist.com /ce/questions/view_questions.asp?lsn_id=2716   (733 words)

  
 Stratum Corneum Stratum Germinativum   (Site not responding. Last check: 2007-11-06)
The stratum is the fundamental unit that forms the basis of the study of stratigraphy.
Stratum Interstate road cutthrough limestone and shale strataeastern Tennessee In geology and related fields, a stratum (plural: strata is a layer of rock or soil with internally consistent characteristics that distinguishes it from contiguous layers.
Stratum germinativum Stratum germinativum or stratum basale is the layer of keratinocytes that lies at the base of the epidermis immediately above the dermis.
www.masterliness.com /a/Stratum.htm   (369 words)

  
 Reptile Skin Basics
Three such layers of increasingly compacted keratin cells are formed, called, from the surface inward toward the stratum germinativum, the Oberhautchen layer, the beta-keratin layer, and the alpha-keratin.
Stratum germinativum : the deepest layer, consisting of cuboidal cells.
During shedding (ecdysis), the mitosis in the stratum germinativum forms the new cells moved up to the intermediate zone and those cells up to the stratum corneum.
www.anapsid.org /basicdermatology.html   (1725 words)

  
 Integument   (Site not responding. Last check: 2007-11-06)
The stratum germinativum or stratum basale is the deepest layer and rests on the basement membrane.
The stratum spinosum is the next superficial layer and varies considerably in thickness depending on the thickness of the skin.
The outer root sheath extends the length of the follicle and appears similar to the cells of the stratum germinativum.
courses.smsu.edu /emh420f/integument.htm   (1450 words)

  
 Proceedings of the Oklahoma Academy of Science
Nearest the outer surface is a layer of cornified dead cells ( stratum corneum); next is the granular cell layer ( stratum granulosum); next the pentagonal cell layer (the stratum spinosum); and finally the undifferentiated cells stratum germinativum.
The lower density of gap junctions in the stratum granulosum raised the possibility that the cells in that layer did not exchange ions with the neighboring strata.
In this stratum, the 240-min gap density was significantly different from the 60- and 120-min densities.
digital.library.okstate.edu /OAS/oas_htm_files/v73/p23_27.html   (2302 words)

  
 IvyRose Holistic : Skin : Stratum Germinativum
The Stratum Germinativum is a layer of skin located within the epidermis.
More specifically, the stratum germinativum is labelled as the deepest layer of the epidermis (outer-skin) in some texts.
These layers are the stratum spinosum and the stratum basale - layers which, together, form the stratum germinativum.
www.ivy-rose.co.uk /References/glossary_entry295.htm   (114 words)

  
 Anatomy Attic - Skin   (Site not responding. Last check: 2007-11-06)
The deepest layer of the epidermis is the stratum germinativum.
The stratum corneum is the upper layer of keritinized, squamous cells.
The cells are supplied by the prolific stratum germinativum in the matrix of the hair bulb at the inferior end of the follicle.
www.ncws.com /lars/anatomy/notes/skin.html   (2669 words)

  
 Untitled Document
Note the stratum germinativum (stratum basale) and the stratum spinosum next to it.
Identify next the thinner stratum granulosum, in which the cytoplasm of the cells contains blue-staining irregular granules of keratohyalin, which at a later stage become associated with tonofilaments to give rise to keratin.
Under the free edge of the nail the stratum corneum of the epidermis of the nail bed reforms and constitutes the thickened hyponychium or subunguis.
www.anatomy.dal.ca /Human_Histology/Lab10/Laboratory10.html   (1235 words)

  
 7. Skin
Identify the strata germinativum, spinosum, granulosum, lucidum and corneum, ( illustration).The two lowest layers are sometimes referred to jointly as the Malpighian layer.
Nearly all of the cell divisions occur in the single layer of basal cells that comprise the stratum germinativum.
Now follow the stratum germinativum out under the body of the nail and observe the longitudinal ridged appearance of this layer of the epidermis.
neuromedia.neurobio.ucla.edu /campbell/skin/wp.htm   (3149 words)

  
 Visual Changes Skin Care
The stratum spinosum is often classified witht the stratum germinativum to form the basal layer.
The stratum germinativum is composed of single layer cells.
The stratum germinativum (basal layer) is responisble for the growth of the epidermis and is where your skin produces melanin.
www.visualchanges.com /skinscience.html   (554 words)

  
 stratum_corneum   (Site not responding. Last check: 2007-11-06)
Stratum corneum Stratum corneum As a cell accumulates keratinohyalin granules, it is thought that rupture of lysosomal membranes release lysosomal enzymes that eventually cause cell death.
along the sides of his hands indicating the thinner stratum corneum on the dorsum of the hands, and a thicker stratum corneum on the palms.
Dermatology Infections: Fungal--Differential Diagnosis Fungi growth in the stratum corneum John L. Bezzant,M.D. The stratum corneum is a site of growth fungi, and diagnosis...
stratum_corneum.networklive.org   (242 words)

  
 Chapter 5: The Integumentary System
It is most apparent in cells of the stratum corneum of light-skinned individuals.
In Caucasians, this transfer occurs in the stratum germinativum and stratum spinosum, and the cells of more-superfical layers lose their pigmentation.
In dark-skinned people, the melanosomes are larger and the transfer may occur in the stratum granulosum as well; the pigmentation is thus darker and more persistent.
media.pearsoncmg.com /ph/esm/esm_martini_fundanaphy_5/bb/obj/5/CH05/html/ch5_2_2.html   (1182 words)

  
 The Skin   (Site not responding. Last check: 2007-11-06)
Below the stratum lucidum, but still part of the epidermis, is the "stratum germinativum," or germinative layer.
Penetrating through the stratum germinativum are the sebaceous glands which originate in the dermis and secrete an oily substance serving to lubricate the skin.
Below the stratum germinativum is the "dermis," which is made of connective tissue (proteins called "collagen" and "elastin") penetrated by nerves, veins, arteries, venules, arterioles, capillaries, lymph ducts and containing sweat glands and hair follicles.
www.medical-library.net /sites/_skin.html   (2203 words)

  
 INTEGUMENTARY SYSTEM   (Site not responding. Last check: 2007-11-06)
The epidermis differs from that of thick skin in having thinner stratum spinosum, granulosum, and corneum, and lacks the stratum lucidum ( Thin Skin 1).
The pigment of the skin is produced by melanocytes, which take up residence in the basal layer (stratum germinativum) and produce melanin or pigment granules ( Melanocytes).
The deepest portion of the hair follicle is composed only of stratum germinativum cells and is called the germinal matrix of the follicle.
lifesci.rutgers.edu /~babiarz/integ.htm   (549 words)

  
 David Wayte, Anatomy & Physiology teaching notes   (Site not responding. Last check: 2007-11-06)
This layer along with the stratum germinativum forms the basal layer of the epidermis.
Most mitotic cells which appear to be in the spinosum layer are actually found in the basal cells around the dermal papillae of the hair in other layers, and mitotic activity takes place largely, if not entirely in the Stratum Germinativum.
This is the deepest section of the epidermis and is in contact with the Dermis, from which it derives its nutrient fluid via the capillary blood vessels.
homepage.ntlworld.com /david.wayte2/skin.html   (1668 words)

  
 Exam Friday remember
Generally lacks a stratum corneum layer in epidermis, outer most layer of epidermis is composed of live cells, outermost epidermal cells contain microridges for holding mucous, or collagen fibers run parallel in multiple laminated layers.
The stratum corneum is much thicker and lipid secretions often take the place of mucous for their role in reducing dessication.
Since amphibians lack heavy mucous layer or a thick stratum corneum, they need some other means of fending off attacks by viruses and bacteria.
comenius.susqu.edu /bi/302/Lecture9.htm   (1188 words)

  
 [No title]
ªz `ó Ÿ¨Skin PigmentationŸ¨5Carotene, a yellow orange pigment is a precursor of vitamin A. This is found in the stratum corneum and fatty areas of the dermis and subcutaneous layer.
Stem cells divide and replace with the cells on top (keratinocytes) these cells are also nourished by the adjoining tissues in the dermal layer.
Keratin is the basic component of hair and nails.ª,>  ?ó Ÿ¨Stratum LucidumªŸ¨tIn the thick skin of the palms and soles.
www.laredo.cc.tx.us /science/rviswanath/BIOL2401PPT/int.sys.ppt   (517 words)

  
 IvyRose Holistic : Skin : Epidermis
The stratum corneum ; the stratum lucidum ; the stratum granulosum ; and the stratum germinativum (which is also known as the “ Malpighian Layer ”).
Other more detailed texts describe the epidermis as consisting of 5 layers, mentioning the stratum spinosum and the stratum basale in place of the stratum germinativum.
To view the location of the epidermis relative to the other key components of the skin see:
www.ivy-rose.co.uk /References/glossary_entry279.htm   (130 words)

  
 Lesson#4b1
The epidermis is avascular meaning it has no blood vessels and must receive nutrients by diffusion from the superficial dermis.
Cells migrating from the stratum germinativum to the stratum corneum
Your fingerprint pattern is determined by the papillary ridges in your superficial dermis.
dtc.pima.edu /~biology/160alpha/lesson6/lesson6b.htm   (199 words)

  
 Stratum germinativum   (Site not responding. Last check: 2007-11-06)
The stratum germinatum ( SG) provides the germinal cells necessary for the regeneration of the layers of the epidermis.
These germinal cells are separated from the dermis by a thin layer of basement membrane.
After a mitotic division a newly formed cell will undergo a progressive maturation called keratinization as its migrates to the surface.
www.meddean.luc.edu /lumen/MedEd/medicine/dermatology/melton/skinlsn/stgerm.htm   (55 words)

  
 Skin and Appendages   (Site not responding. Last check: 2007-11-06)
Compared to slide #37, the depth of the various strata within thin skin is markedly reduced.
The stratum lucidum is missing and the stratum granulosum may only be represented by a single layer of scattered cells bearing the dense basophilic granules.
Study the structure of hair in both the longitudinal and cross sections of skin.
www.complab.nymc.edu /Histology/SkinAppendages/SkinAppendages.htm   (648 words)

  
 Skin Notes
connect base of hair with bottom of stratum germinativum
tough protein, found in large amounts in stratum corneum of skin, fingernails, toenails, hooves and horns of animals
manufactured in stratum germinativum, and concentrates in cells as they move upward into the stratum corneum
www.geocities.com /centennial3d/notesskin.html   (663 words)

  
 Lecture 13 - Integument
d) Stratum lucidum = 3-5 cells thick, pale-staining translucent layer; cells are dead
dermis or between cells of the stratum germinativum; precise details of secretion
melanocytes that become pinched off and taken into cells of stratum germinativum
www.usd.edu /biol/faculty/swanson/histo/lecture13.html   (1163 words)

  
 Skin, about skin, epidermis, dermis, subcutaneous, horny layer   (Site not responding. Last check: 2007-11-06)
Melanocytes are scattered throughout this layer which synthesize the fl pigment Melanin
This second layer is sometimes considered to be part of the st. germinativum.
Polyhedral shaped cells held together by intercellular bridges (or prickles) but become flattened towards the top
www.avreskincare.co.uk /misc/about_skincare/about_skin.html   (675 words)

  
 Integument and Its Derivatives   (Site not responding. Last check: 2007-11-06)
• Usually an outer vascular stratum spongiosum; and a deeper, thicker stratum compactum.
• Dermis divided into stratum compactum and stratum spongiosum.
Neural crest cells form papillae which induce enamel organs from overlying ectoderm.
www.uta.edu /biology/restricted/3452int.htm   (393 words)

  
 Skin Anatomy
Epidermis Cell Layers (cells mature from inner to outer)
Stratum Lucidum (present only in very thick skin)
Cells are produced here in the germinal layer
www.fpnotebook.com /DER48.htm   (151 words)

  
 VE Glossary   (Site not responding. Last check: 2007-11-06)
Toward head region of embryo (Also see craniad and cephalic)
Cells of stratum granulosum surrounding the secondary oocyte prior to ovulation
Cells of fetal trophoblast which generate extraembryonic mesoderm, extra-embryonic coelom, and central core of chorionic villi
www.visembryo.com /baby/gloss.html   (4499 words)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
Protection from the elements, trauma, etc. Stratum Corneum
Vitamin D production St. Germinativum + St. Spinosum
Excretion (Water, Fat + catabolic wastes) Sweat glands
www.fiu.edu /~condon/skin.htm   (151 words)

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