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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

5.2K
The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
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Cardiac Output and Stroke Volume01:11

Cardiac Output and Stroke Volume

4.9K
Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
4.9K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

3.5K
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
3.5K

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Related Experiment Video

Updated: Feb 11, 2026

The Mouse Stroke Unit Protocol with Standardized Neurological Scoring for Translational Mouse Stroke Studies
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#Stroke.

Jacob J Bundy1, Jeffrey Forris Beecham Chick1,2, Anthony N Hage1

  • 1Department of Radiology, Division of Vascular and Interventional Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA.

Journal of Neurointerventional Surgery
|April 22, 2018
PubMed
Summary
This summary is machine-generated.

The #Stroke hashtag on Twitter has seen significant growth, with discussions primarily from patient groups and the public. Key topics include stroke prevention, symptoms, and related conditions.

Keywords:
economicspoliticalstroke

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Area of Science:

  • Social Media Analytics
  • Public Health Communication
  • Neurology

Background:

  • Twitter has become a significant platform for health-related discussions.
  • Understanding online health communities is crucial for public health initiatives.

Purpose of the Study:

  • To analyze the #Stroke hashtag on Twitter to understand the stroke-related online network.
  • To identify trends, user engagement, and content themes within the #Stroke community.

Main Methods:

  • Analysis of 621,653 tweets using the #Stroke hashtag from March 2012 to January 2018.
  • Utilized Symplur Signals for Twitter activity, engagement, user, content, and network analysis.

Main Results:

  • Significant annual growth in users (64.9%), impressions (87.7%), and tweets (89.2%).
  • Common topics included stroke prevention, diabetes, and atrial fibrillation.
  • Advocate organizations, patients, and non-healthcare individuals were primary users.

Conclusions:

  • The #Stroke hashtag demonstrates substantial growth and engagement over a six-year period.
  • Discussions predominantly involve stroke support groups and the general public.
  • Content focuses on stroke prevention, symptoms, associated conditions, and treatment.