{"id":753,"date":"2023-12-04T10:28:17","date_gmt":"2023-12-04T15:28:17","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/chapter\/athena-subchapter-3-stains-table\/"},"modified":"2023-12-04T10:28:17","modified_gmt":"2023-12-04T15:28:17","slug":"athena-subchapter-3-stains-table","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/chapter\/athena-subchapter-3-stains-table\/","title":{"raw":"A new learner's guide to tissue structures: glands and ducts","rendered":"A new learner&#8217;s guide to tissue structures: glands and ducts"},"content":{"raw":"\n<ol>\n \t<li>Keratinizing - clear mesh on top of skin layers lacking nuclei<\/li>\n<\/ol>\n<img class=\"alignnone size-full wp-image-6611\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/morphology-guide-stratified-squamous.jpg\" alt=\"\" width=\"1095\" height=\"651\">\n\nFig. 9 The keratin layer of this thick foot skin slide is marked in yellow. (Slide ID: Path 304 001, Image ID: 1522 - Thick skin from foot)\n\nThe de-saturated mesh marked out by yellow above is the keratin layer atop of thick skin. This keratinizing layer is distinguished by its duller, less saturated staining, mesh-like, flaking texture and lack of nuclei.\n<ol>\n \t<li>Glands<\/li>\n<\/ol>\nEndocrine vs Exocrine:\n<ul>\n \t<li>- Exocrine glands: secretes products into surface epithelium or a larger organ\n<ul>\n \t<li>- Simple tubular - individual test-tube like infoldings of the epithelium<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<img class=\"alignnone size-full wp-image-6627\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/glands.jpg\" alt=\"\" width=\"1095\" height=\"651\">\n\nFig. 10 Simple tubular crypts marked out in blue in the duodenum (Slide ID: Path 304 012a, Image ID: 1534 - Duodenum, stain: H&amp;E)\n<ul>\n \t<li>- Branched tubular - individual but branching tubular glands<\/li>\n<\/ul>\n<img class=\"alignnone size-full wp-image-6628\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/branched-tubular-gland.jpg\" alt=\"\" width=\"1095\" height=\"651\">\n\nFig. 11 H&amp;E stained stomach slide with branched tubular glands marked out in yellow and blue (Slide ID: Path 304 011b, Image ID: 1533 - stomach)\n\nAbove are branched tubular glands marked out in yellow and blue. The yellow box shows an interesting sample which could be mistaken for two simple tubular glands, but this would be due to the cut of this stomach section.\n\nThe possible cut made is visualized below:\n\n<img class=\"alignnone size-full wp-image-6629\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/3D-to-2D.jpg\" alt=\"\" width=\"707\" height=\"457\">\n\nFig. 12 Hand drawn 3-D to 2-D visualization of a branched tubular gland\n\n&nbsp;\n<ul>\n \t<li>- Coiled tubular<\/li>\n<\/ul>\nIf a coiled tubular gland was presented as a cross-section one can imagine a nest of squirmy things, each surrounding a \u201chole\u201d.\n","rendered":"<ol>\n<li>Keratinizing &#8211; clear mesh on top of skin layers lacking nuclei<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6611\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/morphology-guide-stratified-squamous.jpg\" alt=\"\" width=\"1095\" height=\"651\" \/><\/p>\n<p>Fig. 9 The keratin layer of this thick foot skin slide is marked in yellow. (Slide ID: Path 304 001, Image ID: 1522 &#8211; Thick skin from foot)<\/p>\n<p>The de-saturated mesh marked out by yellow above is the keratin layer atop of thick skin. This keratinizing layer is distinguished by its duller, less saturated staining, mesh-like, flaking texture and lack of nuclei.<\/p>\n<ol>\n<li>Glands<\/li>\n<\/ol>\n<p>Endocrine vs Exocrine:<\/p>\n<ul>\n<li>&#8211; Exocrine glands: secretes products into surface epithelium or a larger organ\n<ul>\n<li>&#8211; Simple tubular &#8211; individual test-tube like infoldings of the epithelium<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6627\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/glands.jpg\" alt=\"\" width=\"1095\" height=\"651\" \/><\/p>\n<p>Fig. 10 Simple tubular crypts marked out in blue in the duodenum (Slide ID: Path 304 012a, Image ID: 1534 &#8211; Duodenum, stain: H&amp;E)<\/p>\n<ul>\n<li>&#8211; Branched tubular &#8211; individual but branching tubular glands<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6628\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/branched-tubular-gland.jpg\" alt=\"\" width=\"1095\" height=\"651\" \/><\/p>\n<p>Fig. 11 H&amp;E stained stomach slide with branched tubular glands marked out in yellow and blue (Slide ID: Path 304 011b, Image ID: 1533 &#8211; stomach)<\/p>\n<p>Above are branched tubular glands marked out in yellow and blue. The yellow box shows an interesting sample which could be mistaken for two simple tubular glands, but this would be due to the cut of this stomach section.<\/p>\n<p>The possible cut made is visualized below:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6629\" src=\"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-content\/uploads\/sites\/2131\/2023\/12\/3D-to-2D.jpg\" alt=\"\" width=\"707\" height=\"457\" \/><\/p>\n<p>Fig. 12 Hand drawn 3-D to 2-D visualization of a branched tubular gland<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>&#8211; Coiled tubular<\/li>\n<\/ul>\n<p>If a coiled tubular gland was presented as a cross-section one can imagine a nest of squirmy things, each surrounding a \u201chole\u201d.<\/p>\n","protected":false},"author":103,"menu_order":4,"template":"","meta":{"pb_show_title":"","pb_short_title":"","pb_subtitle":"","pb_authors":["athenali-2"],"pb_section_license":""},"chapter-type":[],"contributor":[69],"license":[],"class_list":["post-753","chapter","type-chapter","status-publish","hentry","contributor-athenali-2"],"part":736,"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/chapters\/753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/wp\/v2\/users\/103"}],"version-history":[{"count":0,"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/chapters\/753\/revisions"}],"part":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/parts\/736"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/chapters\/753\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/wp\/v2\/media?parent=753"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/pressbooks\/v2\/chapter-type?post=753"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/wp\/v2\/contributor?post=753"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/dcbiol2200\/wp-json\/wp\/v2\/license?post=753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}