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Related Concept Videos

Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular cells,...
Whole Body Regeneration01:33

Whole Body Regeneration

Regeneration is the process of restoring injured or lost tissues, organs, or body parts. While simpler organisms generally show greater ability to regenerate their whole body, few complex animals show similarly exceptional regeneration. For example, planarian flatworms have a unique regenerative potential making them a popular study organism among biologists to understand the mechanisms of whole body regeneration. Other organisms, such as hydra, also show extreme regeneration potential; even...
Reticular Dermis01:15

Reticular Dermis

The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
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The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Muscles for Facial Expressions

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Related Experiment Video

Updated: Jun 24, 2026

Enhancement of Facial Rejuvenation Through a Combination of 1565 nm Non-Ablative Fractional Laser with 30% Supramolecular Salicylic Acid
03:47

Enhancement of Facial Rejuvenation Through a Combination of 1565 nm Non-Ablative Fractional Laser with 30% Supramolecular Salicylic Acid

Published on: September 27, 2024

Neck rejuvenation without face lift.

Richard A Mladick

    Aesthetic Surgery Journal
    |April 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Achieve a better neck profile without a facelift through chin augmentation and submental area treatment. Procedures like chin implants, liposuction, or necklifts can effectively address neck contour issues.

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    Last Updated: Jun 24, 2026

    Enhancement of Facial Rejuvenation Through a Combination of 1565 nm Non-Ablative Fractional Laser with 30% Supramolecular Salicylic Acid
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    Published on: September 27, 2024

    Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
    19:53

    Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer

    Published on: March 1, 2015

    Area of Science:

    • Plastic Surgery
    • Facial Aesthetics
    • Reconstructive Surgery

    Background:

    • Neck rejuvenation is a common aesthetic concern.
    • Facial aging often involves changes in the neck and chin.
    • Non-surgical or minimally invasive options are sought after.

    Purpose of the Study:

    • To describe methods for improving neck aesthetics without a full facelift.
    • To outline surgical techniques for chin augmentation and submental contouring.
    • To present options for various degrees of neck aging and fat accumulation.

    Main Methods:

    • Chin augmentation using wraparound anatomic silicone implants with a "no-touch" technique.
    • Liposuction (lipoplasty) with or without fat excision for submental area debulking.
    • Full neckplasty for significant fatty necks and contour irregularities.

    Main Results:

    • Chin projection significantly improves neck appearance.
    • Liposuction is effective for mild to moderate submental fat with good skin tone.
    • Neckplasty provides excellent results for substantial neck fat and contour issues.

    Conclusions:

    • Neck improvement is achievable without a facelift.
    • Chin augmentation and submental area treatment are key to neck rejuvenation.
    • Tailored surgical approaches yield optimal aesthetic outcomes for the neck.