Related Experiment Video
Updated: Feb 15, 2026
09:48
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
12.5K
Reticular Fiber Distribution in the Upper Eyelid of East Asians
Hirohiko Kakizaki1,2,3, HeeBae Ahn2, Derrick Lian4
1Asami Eye Surgery Clinic, Obu, Aichi, Japan.
Ophthalmic Plastic and Reconstructive Surgery
|February 13, 2026
Summary
Reticular fibers are abundant in East Asian upper eyelids, supporting various structures. Degeneration of these fibers was noted in elderly specimens, indicating age-related changes.
Area of Science:
- Ophthalmology
- Anatomy
- Histology
Background:
- Reticular fibers are a key component of connective tissue.
- Their specific distribution in the human upper eyelid is not fully elucidated.
Purpose of the Study:
- To investigate the distribution patterns of reticular fibers in the upper eyelid of East Asian individuals.
Main Methods:
- Analysis of sagittal sections from 24 East Asian cadaver upper eyelids (ages 36-94).
- Specimens were fixed in formalin and stained with silver nitrate for histological examination.
Main Results:
- Reticular fibers were widely distributed throughout the upper eyelid structures.
- Abundant fibers were found beneath the skin and conjunctiva, in the eyelid margin, and tarsal plate.
- These fibers ensheathed various glands, muscles, nerves, and vascular structures, with diffuse distribution in ligaments and aponeuroses.
- Sparse or coarse distributions were observed in subcutaneous and adipose tissues.
- Elderly specimens showed both intact and degenerated reticular fibers.
Conclusions:
- Reticular fibers exhibit a widespread and adaptable distribution within the East Asian upper eyelid.
- Age-related degeneration of reticular fibers was observed in older individuals.
More Related Videos
Related Concept Videos
01:15Reticular Dermis
4.9K
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
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
4.9K
01:13Functional Brain Systems: Reticular Formation
5.1K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
5.1K
01:48Classification of Skeletal Muscle Fibers
59.6K
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
59.6K
01:12Arteries of the Upper Limbs
2.5K
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...
2.5K
01:17Veins of Upper Limbs
4.4K
The human circulatory system, a marvel of biological engineering, is a complex network of vessels that transport blood throughout the body. Among these, the veins responsible for carrying blood from the upper limbs are divided into two categories: deep and superficial.
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
4.4K
01:25Drug Distribution: Volume of Distribution
7.6K
The volume of distribution refers to the theoretical volume necessary to contain the entire amount of an administered drug at the same concentration observed in the blood plasma. The body's intracellular fluid compartment, which makes up two-thirds of the total body water, is contrasted with the extracellular fluid compartment—comprising plasma and interstitial fluid—that accounts for one-third. The volume of distribution can vary depending on the characteristics of the drug.
7.6K