Related Experiment Video
Updated: Jun 18, 2026
09:14
Isolation of Papillary and Reticular Fibroblasts from Human Skin by Fluorescence-activated Cell Sorting
Published on: May 7, 2019
Rare anatomic location of a papillary fibroelastoma
Rubie Maybury1, Philip Mullenix, Michael Greenberg
1Division of Cardiology, Veterans Affairs Medical Center, Washington, DC 20422, USA.
The Annals of Thoracic Surgery
|November 26, 2009
Abstract:
A rare anatomic location of a fibroelastoma arising form the edge of the right atrial wall near the atrioventricular node and the base of the septal leaflet of the tricuspid valve is presented. Complete surgical excision remains the goal with a precise and careful technique to ensure conduction integrity.
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01:11Papillary Dermis
Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
01:09Introduction to Fibroblasts
Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...