Related Experiment Video

Updated: Aug 19, 2026

Isolation and Cannulation of Cerebral Parenchymal Arterioles
09:49

Isolation and Cannulation of Cerebral Parenchymal Arterioles

Published on: May 23, 2016

Neurogenic mediators in control of pulpal blood flow

L M Olgart, B Edwall, B Gazelius

    Journal of Endodontics
    |September 1, 1989
    PubMed

    More Related Videos

    Evaluation of Cerebral Blood Flow Autoregulation in the Rat Using Laser Doppler Flowmetry07:12

    Evaluation of Cerebral Blood Flow Autoregulation in the Rat Using Laser Doppler Flowmetry

    Published on: January 19, 2020

    Paired Cisterna Magna Nanoinjection and Laser Speckle Contrast Imaging Assay to Study Cerebral Blood Flow Regulation In Vivo06:24

    Paired Cisterna Magna Nanoinjection and Laser Speckle Contrast Imaging Assay to Study Cerebral Blood Flow Regulation In Vivo

    Published on: July 8, 2025

    Related Concept Videos

    The Parasympathetic Nervous System01:14

    The Parasympathetic Nervous System

    Overview
    Nitric Oxide Signaling Pathway01:28

    Nitric Oxide Signaling Pathway

    Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...
    Pathophysiology of Cardiac Performance01:29

    Pathophysiology of Cardiac Performance

    Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
    Vascular Spasm01:16

    Vascular Spasm

    The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
    Neural Regulation of Blood Pressure01:18

    Neural Regulation of Blood Pressure

    The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
    Baroreceptor Reflex
    Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
    Autoregulation of Blood Flow01:17

    Autoregulation of Blood Flow

    Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
    Chemical Signaling in Autoregulation
    Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation.