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BSNC 5000 OB
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BSNC 5000 OB
BSNC 5000 – OB EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Uteroplacental circulation - Answer -- uterine arterial blood supply shown at right - both the ovarian and uterine arteries supply the myometrium - spiral arteries elongate as th...
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| Uploaded on: | October 27, 2025 |
| Last updated: | November 17, 2025 |
| Number of pages: | 17 |
| Written in: | 2025/2026 |
| Type: | Exam (elaborations) |
| Contains: | Questions & Answers |
| Tags: | BSNC 5000 – OB EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Uteroplacental circulation - Answer -- uterine arterial blood supply shown at right - both the ovarian and uterine arteries supply the myometrium - spiral arteries elongate as the endometrium cyclically thickens to accommodate the possibility |
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BSNC 5000 – OB EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Uteroplacental circulation - Answer -- uterine arterial blood supply shown at right - both the ovarian and uterine arteries supply the myometrium - spiral arteries elongate as the endometrium cyclically thickens to accommodate the possibility of implantation of a blastocyst Intervillous space - Answer -- the space in the placenta in which maternal blood bathes chorionic villi, allowing the exchange of materials between the fetal and maternal circulations. Divided into 3 parts: - arterial circulation - circulation in the intervillous space - venous drainage Hemodynamics of uteroplacental circulation - Answer -Volume of placental blood flow - 600-700mL/min Pressure in supplying uterine artery - 80-100 mmHg Pressure in spiral arteries - 70mmHg Pressure in draining uterine vein - 10mmHg Maternal intravascular volume changes - Answer -- plasma volume increases by up to 1L - rise in #rbc/blood volume but to lesser extent (placental lactogen stimulates production of erythropoietin) Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com - dilutional gap causes physiological anemia Blood pressure change in normal pregnancy - Answer -- progesterone relaxes smooth muscle in the wall of blood vessels - relaxin increases systemic arterial compliance (vasodilation) to reduce peripheral resistance - decreases the effective circulating volume (same volume but larger space to fill) - effects of vasodilation: •non-osmotic release of vasopressin/ADH •activation of SNS and RAAS increases plasma volume for adequate organ perfusion Maternal cardiovascular changes - Answer -- increasing volume -> increase in preload -> increased contractility. - decrease in vascular resistance reduces afterload which increases cardiac output by nearly 50% thereby increasing the efficiency of the heart. Risk of thrombosis during pregnancy - Answer -- increase in clotting factors increases risk of thrombosis about 2x - platelet count decreases as pregnancy progresses - diulutional effects - sequestering in the intervillous spaces of the placenta Postpartum risk of thrombosis - Answer -- returns to normal 6-8 weeks postpartum - risk of thrombosis increases 5.5x in postpartum period since platelets are no longer sequestered by placenta Basal metabolic rate during pregnancy Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com
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