Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Location and Orientation of the Heart01:13

Location and Orientation of the Heart

14.8K
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
14.8K
Anatomy of the Heart01:27

Anatomy of the Heart

124.8K
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
124.8K
Anatomy of the Heart01:20

Anatomy of the Heart

5.5K
The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
5.5K
Heart Valves01:16

Heart Valves

16.3K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
16.3K
Overview of the Heart01:07

Overview of the Heart

16.4K
The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's structure...
16.4K
Development of the Heart01:27

Development of the Heart

3.9K
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
3.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Factors associated with thrombotic events among young adults in India, 2021-23: A multi-centric hospital-based matched case -control study.

The Indian journal of medical research·2026
Same author

Antifungal Effects of Terminalia arjuna Fruit Extract on Multidrug-Resistant Candida auris: An In Vitro Study.

Cureus·2026
Same author

Comparison of qSOFA Score and NEWS2 Score in Sepsis Patients Admitted in Emergency Department and ICU as Prognostic Markers of Patient Outcome.

The Journal of the Association of Physicians of India·2026
Same author

Adverse Drug Reactions to Antihypertensive Therapy: A Prospective Evaluation of Causality and Severity Using the World Health Organization-Uppsala Monitoring Centre (WHO-UMC) and Hartwig-Siegel Scales.

Cureus·2026
Same author

Galectin-3 Outperforms N-Terminal Pro-B-type Natriuretic Peptide in Identifying Cardiac Dysfunction among Chronic Liver Disease Patients: Evidence from a Prospective Cohort.

Annals of African medicine·2026
Same author

Prescribing Trends of Antihypertensive Medications: An Observational Study in a Tertiary Care Hospital in India.

Cureus·2026

Related Experiment Video

Updated: Apr 14, 2026

Author Spotlight: Optimizing Scorpion Venom Extraction for Antivenom Production
05:27

Author Spotlight: Optimizing Scorpion Venom Extraction for Antivenom Production

Published on: October 6, 2023

4.7K

Scorpion bite, a sting to the heart!

Avinash Agrawal1, Anand Kumar1, Shuchi Consul2

  • 1Department of Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India.

Indian Journal of Critical Care Medicine : Peer-Reviewed, Official Publication of Indian Society of Critical Care Medicine
|April 17, 2015
PubMed
Summary
This summary is machine-generated.

Scorpion bites in India can cause serious heart issues, mimicking myocardial infarction. Prompt Intensive Care Unit (ICU) care is crucial for successful recovery from these rare cardiovascular complications.

Keywords:
Heart failuremyocardial infarctionscorpion bite

More Related Videos

Electrophysiology of Scorpion Peg Sensilla
07:50

Electrophysiology of Scorpion Peg Sensilla

Published on: April 13, 2011

9.5K
Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses
10:25

Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses

Published on: November 3, 2014

34.9K

Related Experiment Videos

Last Updated: Apr 14, 2026

Author Spotlight: Optimizing Scorpion Venom Extraction for Antivenom Production
05:27

Author Spotlight: Optimizing Scorpion Venom Extraction for Antivenom Production

Published on: October 6, 2023

4.7K
Electrophysiology of Scorpion Peg Sensilla
07:50

Electrophysiology of Scorpion Peg Sensilla

Published on: April 13, 2011

9.5K
Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses
10:25

Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses

Published on: November 3, 2014

34.9K

Area of Science:

  • Cardiology
  • Toxicology
  • Emergency Medicine

Background:

  • Scorpion stings are prevalent in India, with potential for severe clinical outcomes.
  • While often benign, some scorpion bites can lead to life-threatening conditions.

Observation:

  • A rare case of scorpion bite presented with electrocardiographic changes resembling early myocardial infarction.
  • The patient also exhibited pulmonary edema and congestive heart failure, alongside elevated cardiac markers.

Findings:

  • Cardiovascular manifestations in severe scorpion stings are attributed to venom-induced sympathetic nervous system activation and direct myocardial toxicity.
  • The case highlights the venom's potent effect on the cardiovascular system.

Implications:

  • This case underscores the importance of recognizing and managing cardiac complications following scorpion envenomation.
  • Aggressive Intensive Care Unit (ICU) management, including noninvasive ventilation and supportive therapies, can lead to successful outcomes.