Related Experiment Video

Updated: Aug 7, 2026

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
12:17

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo

Published on: August 2, 2017

Whole blood viscosity in preeclampsia

J B Hobbs, J N Oats, A A Palmer

    American Journal of Obstetrics and Gynecology
    |February 1, 1982
    PubMed

    More Related Videos

    Ultrasonography in Experimental Reproductive Investigations on Rats07:59

    Ultrasonography in Experimental Reproductive Investigations on Rats

    Published on: December 2, 2017

    Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas05:31

    Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas

    Published on: January 26, 2024

    Related Concept Videos

    Factors affecting Blood pressure01:28

    Factors affecting Blood pressure

    Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
    Physiological Factors:
    Alterations in Blood Pressure01:30

    Alterations in Blood Pressure

    Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
    Hypertension (High blood pressure)
    Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
    Special considerations while measuring blood pressure01:28

    Special considerations while measuring blood pressure

    When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
    Monitoring Both Arms:
    Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
    Vascular Resistance01:20

    Vascular Resistance

    Vascular resistance is a critical concept in understanding blood flow dynamics in the circulatory system. It refers to the resistance that blood encounters as it flows through the blood vessels. This resistance is a key factor in determining blood pressure and cardiac workload.
    The primary determinants of vascular resistance are vessel diameter, blood viscosity, and vessel length. Among these, vessel diameter plays the most significant role due to the fourth power relationship described by...
    Hormonal Regulation of Blood Pressure01:17

    Hormonal Regulation of Blood Pressure

    Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
    Epinephrine and Norepinephrine
    The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction while...
    Cerebral Edema ll: Pathophysiology01:22

    Cerebral Edema ll: Pathophysiology

    Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...