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Showing posts with the label ultrasonography in obstetrics

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ANATOMY OF FLOWERING PLANTS

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  What is Plant Anatomy? Plant anatomy is the study of internal structure and organization of tissues in plants. It helps in understanding: Functional adaptation Transport system Growth patterns Tissue Organization in Flowering Plants Flowering plants have three major tissue systems :  Epidermal Tissue System Components: Epidermis Single layer of compact cells No intercellular spaces Covered by cuticle (except roots) Cuticle Made of cutin Prevents water loss Stomata Present mainly on leaves Composed of guard cells Regulate: Gas exchange Transpiration Root hairs Extensions of epidermal cells Increase surface area for absorption Trichomes (in stem) Hair-like structures Protection + reduce transpiration  Functions: Protection Water conservation Gas exchange 🌿 B. Ground Tissue System  Types of Ground Tissue: 1. Parenchyma Living cells, thin cell wall Large vacuole Functions: Storage Photosynthesis ( chlorenchyma ) Air storage ( aerenchyma ) 2. Collenchyma Living cell...

ultrasonography in obstetrics

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 GENERAL INTRODUCTION The application of ultrasound in obstetrics and gynecology was first described in Europe in 1958 by Donald et al and in America in 1964 by Taylor et al. Ultrasound has rapidly replaced X-ray studies in the field of obstetrics and gynecology due to its safety, noninvasiveness, and effectiveness in scanning the abdominal and pelvic regions. Ultrasound is considered an ideal scanning procedure for obstetrics and gynecology due to its atraumatic nature and noninvasive approach. The ultrasound examination is typically performed with the patient in the supine position. A coupling agent, such as mineral oil, is applied to the skin to facilitate the transmission of sound waves. Reference points like the umbilicus or the symphysis pubis are used during the examination. In obstetric studies, the transrectal plane and puboxiphoid line are often used as reference points, especially in cases of progressing conception and increasing fetal size. Transverse, longitudinal, and...