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76 spleenReticular fibers are numerous in this image of red pulp. Reticular fibers encircle sinusoids like metal rings around a barrel. Depending on the angle of section, reticular fibers may appear as black dots, rings, or lines along the outer edge of the sinusoids. Identify sinusoids cut longitudinally an...red pulp; reticular fibers; spleenUCLA Histology
77 AdrenalThe classical organization of the adrenal gland with a thick capsule and the cortex composed of three layers: the outer zona glomerulosa, the middle zona fasciculata and the inner zona reticularis. Finally, in the center of the gland is the adrenal medulla. UCLA Histology Collection.AdrenalUCLA Histology
78 Skin - Hair FollicleAssociated with hair follicles are sebaceous glands and arrector pili muscles. The sebum produced by the glands is a holocrine secretion that is emptied onto the hair shaft. The arrector pili muscles pull the hair shaft into a more upright position. Identify adipose and hair. UCLA Histology Collecti...UCLA Histology
79 Glands of GI TractHigher magnification image showing the portal triad with a biliary duct, a branch of hepatic artery and a branch of portal vein embedded within connective tissue, and the hepatocytes. UCLA Histology Collection.Gastrointestinal tract; Liver; portal triadUCLA Histology
80 Skeletal MuscleSkeletal Muscle at 40X cut in longitudinal section. Note the shape and position of the nuclei. UCLA Histology Collection.Skeletal MuscleUCLA Histology
81 Adrenal cortical adenomaAdrenal cortical adenomaAndenoma, Adrenal CorticalKnowledge Weavers Pathology
82 Hyaline arteriolosclerosisHyaline arteriolosclerosisKnowledge Weavers Pathology
83 Male reproductive systemA seminiferous tubule showing a Sertoli cell with a pale staining nucleus and a prominent nucleolus. Spermatogonia lie along the basal lamina and are either dark or more pale staining. After division the daughter cells of the spermatogonia, the primary spermatocytes work their way toward the lumen a...Male reproductive system; Seminiferous tubule; Sertoli cell; testisUCLA Histology
84 SkinThis section of abdominal skin is a good example of thin skin. Note the thin layer of epidermis. The dermis is composed of two layers: the superficial papillary layer, and the deeper reticular layer. Deep in the dermis, hair follicles and associated sebaceous glands are present. Again note the inter...epidermis; Meissner's corpuscles; SkinUCLA Histology
85 OviductDo not let this slide confuse you. Although the oviduct is a tube, finger like projections, the fimbria project towards the ovary. The lower half of this field contains blood vessels. At the time of ovulation, the fimbria fill with blood and more or less encase the ovary helping make sure that the o...fimbria; OviductUCLA Histology
86 PlacentaThe fetus is located in the amniotic cavity which is lined by the epithelium of the amnion and its mesenchyme . Below the amnion is the beginning of the chorion, starting first with chorionic mesenchyme which contains fetal blood vessels . Within the chorion one will find the maternal blood space an...PlacentaUCLA Histology
87 Gastrointestinal TractLow power view of the rectum showing the lamina propria and deep crypts. Note the lymphatic aggregate in the lamina propria disrupting the muscularis mucosae. Shown here is also the submucosa with a venous plexus distended into hemorrhoids. UCLA Histology Collection.gastrointestinal tract; RectumUCLA Histology
88 Aphthous stomatitisAphthous stomatitis (cankers) involving the tongue. Aphthous stomatitis ulcers are painful, and major aphthous stomatitis induces ulcers that last for many weeks, and sometimes induce scarring.Canker SoreKnowledge Weavers Dermatology
89 BoneAt a later stage of the developing skull, note the differences in cell density and organization between the immature or woven bone and the mature or lamellar bone. Often a cementing line separates the two types of bone. UCLA Histology Collection.bone; lamellar bone; SkullUCLA Histology
90 Idiopathic pulomonary fibrosisIdiopathic pulmonary fibrosisPulmonary FibrosisKnowledge Weavers Pathology
91 Parathyroid, adenomaParathyroid, adenomaKnowledge Weavers Pathology
92 male reproductive systemThe bulk of the testis is formed by the seminiferous tubules. Please note that the tubules are surrounded by a basal lamina and stromal connective tissue. Within the seminiferous tubule, spermatogonia divide and mature to produce spermatozoa Within the surrounding stroma adipocytes, fibroblasts, and...male reproductive system; Seminiferous tubule; testis; cells of LeydigUCLA Histology
93 Polychromic Erythroblasts and Normoblasttwo late polychromatic erythroblasts & normoblastCa0400; Red Blood Cells; RBC; BM; Bone Marrow Maturation; NRBC; NormoblastAlbert Einstein College of Medicine Gallery of Hematology Images
94 Bone Marrow Maturation - Reticulocytessupravital stain of reticulocytes of varying maturityCa06aT; Red Blood Cells; RBC; BM; Bone Marrow MaturationAlbert Einstein College of Medicine Gallery of Hematology Images
95 Congenital pyropoikilocytosis with brisk hemolysispyropoikilocytosis with brisk hemolysisHe0100; SchistocytesAlbert Einstein College of Medicine Gallery of Hematology Images
96 Punched out Lesions of Skull in Multiple Myelomapunched out lesions of skull in multiple myelomaKf1800Albert Einstein College of Medicine Gallery of Hematology Images
97 Bone - CanaliculiHere the canaliculi of osteocytes can be seen. The canaliculi are little canals filled with the cytoplasmic extensions of the osteocytes which allow for exchange of nutrients with the central canal (CC). UCLA Histology Collection.canaliculiUCLA Histology
98 Bone / CartilageAt a higher magnification of this fracture, we can identify cartilage cells undergoing hypertrophy, calcified cartilage, and woven bone. UCLA Histology Collection.bone; cartilageUCLA Histology
99 ThyroidA low magnification of the thyroid gland stained with PAS. The fact that the colloid is PAS+ indicates that the colloid (thyroglobulin) is a glycoprotein. UCLA Histology Collection.PAS; ThyroidUCLA Histology
100 Bone Marrow showing Clusters of Atypical Megakaryoblasts and Fibrosis in Megakaryoblastic Leukemiabone marrow showing clusters of atypical megakaryoblasts and fibrosis (100x), trichrome stainJd05aT; AML 7Albert Einstein College of Medicine Gallery of Hematology Images
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