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Related Concept Videos

Penis01:29

Penis

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The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...
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Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
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Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
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Normal ligament properties and ligament healing.

C Frank, D Amiel, S L Woo

    Clinical Orthopaedics and Related Research
    |June 1, 1985
    PubMed
    Summary

    Achieving ligament replacement goals requires understanding ligament healing. Further research into ligamentous tissue biology and regeneration is crucial for developing effective solutions.

    Area of Science:

    • Biomedical Engineering
    • Regenerative Medicine
    • Orthopedic Research

    Background:

    • Ligament replacement remains a significant challenge in orthopedic surgery.
    • Current methods often fail to fully restore native ligament function.
    • Understanding intrinsic healing mechanisms is key to improving outcomes.

    Purpose of the Study:

    • To highlight the current limitations in achieving successful ligament replacement.
    • To emphasize the importance of studying ligamentous tissue biology.
    • To underscore the need for advancements in ligament regeneration.

    Main Methods:

    • Review of current literature on ligament healing and regeneration.
    • Analysis of biological processes involved in ligamentous tissue repair.

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  • Identification of knowledge gaps in intrinsic ligament healing.

    • Main Results:

    • Ligament healing processes are not yet fully understood or controllable.
    • Regeneration of ligamentous tissues presents a major biological hurdle.
    • Significant progress is needed to meet the goals of ligament replacement.

    Conclusions:

    • Current strategies for ligament replacement are insufficient.
    • Further investigation into ligament biology and regeneration is essential.
    • Basic science research is a critical first step toward clinical solutions.