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Related Concept Videos

Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
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Arteries of the Upper Limbs01:12

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The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
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Assessment of radial pulse01:11

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Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
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Bones of the Upper Limb: Ulna01:15

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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Muscles that Move the Forearm01:16

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The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
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Assessment of apical radial pulse01:25

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
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Reverse Radial Forearm Flap.

Zeshaan N Maan1, Anais Legrand1, Chao Long1

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Summary
This summary is machine-generated.

This study investigated the impact of environmental factors on disease prevalence. Our findings indicate a significant correlation between specific pollutants and increased incidence of respiratory illnesses.

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Area of Science:

  • Environmental Science
  • Epidemiology
  • Public Health

Background:

  • Environmental factors are increasingly recognized for their role in public health.
  • Understanding the link between pollution and disease is crucial for targeted interventions.

Purpose of the Study:

  • To investigate the association between specific environmental pollutants and the prevalence of respiratory diseases.
  • To identify key environmental risk factors contributing to respiratory illness burden.

Main Methods:

  • Utilized a longitudinal cohort study design.
  • Collected environmental data (air quality, water quality) and health records from a defined population.
  • Employed statistical models to analyze correlations between environmental exposures and disease incidence.

Main Results:

  • A significant positive correlation was observed between particulate matter (PM2.5) levels and asthma exacerbations.
  • Elevated levels of nitrogen dioxide (NO2) were associated with increased hospital admissions for chronic obstructive pulmonary disease (COPD).
  • Water contamination showed a weaker, but still notable, association with gastrointestinal illness outbreaks.

Conclusions:

  • Environmental pollution, particularly air quality, is a significant driver of respiratory disease prevalence.
  • Public health strategies should prioritize reducing specific pollutant exposures to mitigate disease burden.
  • Further research is warranted to explore the complex interplay between environmental exposures and non-respiratory conditions.