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Related Concept Videos

Blood Pressure01:30

Blood Pressure

3.6K
Blood pressure (BP) is the pressure or force of blood exerted on the artery's walls as it circulates through the body. It is essential for maintaining blood flow throughout the body.
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the...
3.6K
Blood Pressure01:24

Blood Pressure

8.9K
The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...
8.9K
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

3.5K
Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
3.5K
Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

6.0K
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...
6.0K
Factors affecting Blood pressure01:28

Factors affecting Blood pressure

5.8K
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:
5.8K
Hormonal Regulation of Blood Pressure01:17

Hormonal Regulation of Blood Pressure

5.2K
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...
5.2K

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Related Experiment Video

Updated: Nov 20, 2025

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
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Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

Published on: February 14, 2021

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The Environment and Blood Pressure.

Robert D Brook1

  • 1Division of Cardiovascular Medicine, University of Michigan, 24 Frank Lloyd Wright Drive, PO Box 322, Ann Arbor, MI 48188, USA.

Cardiology Clinics
|April 17, 2017
PubMed
Summary

Environmental factors like cold, altitude, noise, and air pollution can raise blood pressure (BP). Chronic exposure may lead to sustained hypertension, increasing global cardiovascular risk.

Area of Science:

  • Environmental science
  • Cardiovascular physiology
  • Public health

Background:

  • Environmental factors such as cold temperature, high altitude, loud noises, and air pollution are known to affect physiological processes.
  • Arterial blood pressure (BP) is a critical cardiovascular parameter influenced by numerous internal and external stimuli.
  • Sustained hypertension is a major risk factor for cardiovascular diseases globally.

Purpose of the Study:

  • To investigate the impact of environmental factors on arterial blood pressure.
  • To explore the potential role of chronic environmental exposures in the development of hypertension.
  • To assess the public health implications of environmental factors on blood pressure control and cardiovascular risk.

Main Methods:

  • Literature review of studies examining environmental exposures and blood pressure.
Keywords:
Air pollutionAltitudeCardiovascular riskHypertensionNoiseTemperature

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  • Analysis of physiological responses to acute and chronic environmental stimuli.
  • Epidemiological data assessment on the correlation between environmental factors and hypertension prevalence.

    • Main Results:

    • Brief exposures to environmental factors acutely elevate arterial blood pressure.
    • Chronic exposure to environmental factors may contribute to the development of sustained hypertension.
    • Environmental factors are implicated in worsening blood pressure control and increasing cardiovascular risk.

    Conclusions:

    • Environmental factors represent a significant, often overlooked, contributor to blood pressure dysregulation.
    • Understanding these environmental influences is crucial for effective hypertension management and cardiovascular disease prevention.
    • Public health strategies should consider environmental modifications to mitigate cardiovascular risk.