Serosal layer or PERIMETRIUM Uterus Layers Menstrual Cycle Stages PHASE

Serosal layer or perimetrium uterus layers menstrual

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Serosal layer, or PERIMETRIUM.
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Uterus Layers
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Menstrual Cycle Stages
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PHASE HISTOLOGICAL TISSUE APPEARANCE PROLIFEREATIVE (FOLLICULAR) 1. Epithelial cells of glands of basal layer undergoing rapid mitosis 2. daughter cells are spreading over the remaining stromal cells to re-establish the luminal epithelium 3. Epithelial layer is thin, simple columnar epithelium because of this. 4. Uterine glands tend to be narrow, straight and short (key off of this) OVULATORY (EARLY LUTEAL OR PRE-SECRETORY) 1. epithelium becomes pseudostratified columnar 2. glands become longer and larger 3. glands will become more frequent within the endometrium because of increased length and "corkscrew" shape. (key off of this) 4. endometrium increases in size overall, reaching 75% or more of its maximal size during this phase. SECRETORY (LATE LUTEAL) 1. endometrium continues to increase in thickness during secretory phase. 2. glands have reached their MAX length and have developed a "saw tooth" appearance. 3. the glycogen content increases within the cells such that late in this phase the nuclei become apically located. (key off of this) MENSTRAL 1. the sloughing off of the stromal cells occurs in the superficial parts of the endometrium. 2. early in the phase the basal layer is further subdivided into the superficial stratum compactum and the deeper stratum spongiosum. 3. with the onset of menstruation, red blood cells and leukocytes are present within the stroma and lumen. 4. The endometrium is considerably reduced in thickness because of the Tissue Appearance During Menstrual Cycle
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PRELAB
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Sperm Movement 4
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Epididymis
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Testis In the stroma between the seminiferous tubules are the interstitial endocrine cells ( cells of Leydig ). Usually occur in groups and are large and ovoid and possess a large, eccentrically located nucleus. Cytoplasm is granular and fairly dense near the nucleus, where the peripheral cytoplasm is vesicular and vacuolated (containing vacuoles which are small cavities or spaces in the cytoplasm that contain air or fluid). Will stain lightly acidophilic because of the large number of cytoplasmic lipid droplets. Classify the epithelium that makes up the walls of the tubules. striated
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Epididymis Site of sperm maturation Subdivided into 3 regions Head Body Tail Presents smooth muscle internal and external contours Epithelium is pseudostratified columnar and is composed of tall, columnar principal cells called intermittent basal cells Tall columnar cells are uniform in height and have a numerous long, branching microvilli termed stereocilia
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Ductus deferens (vas deferens) The spermatic cord has a thick muscular wall. How many different layers (smooth muscle) can you identify? 3 LAYERS: inner longitudinal, middle circular and outer longitudinal What type of epithelium lines the surface of the cord? pseudostratified What part of the autonomic nervous system controls the smooth muscle? sympathetic
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Prostate Gland What type of epithelium lines the glands? simple or pseudostratified Can you identify Corpora amylacea (prostatic concretions). What are these composed of ? Glycoprotein, number increases with age. We have a specimen from an old individual
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  • Spring '13
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