Related Experiment Video
Updated: Jan 21, 2026

06:43
Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
Published on: December 7, 2013
14.5K
The supraseptal ethmoid sinus cell: A previously unreported ethmoid sinus variant
1Department of Otolaryngology State University of New York-Upstate Medical University Syracuse New York.
Clinical Case Reports
|July 31, 2019
Summary
This case report describes a rare supraseptal ethmoid sinus cell, located between the nasal septum and ethmoid roof. Careful identification and dissection are crucial to avoid skull base injury and cerebrospinal fluid leaks.
Area of Science:
- Otolaryngology
- Neurosurgery
- Anatomy
Background:
- Anatomical variations in paranasal sinuses can impact surgical approaches.
- The ethmoid sinuses are complex structures adjacent to critical anatomical landmarks.
Observation:
- A unique supraseptal ethmoid sinus cell was identified.
- This cell was situated between the nasal septum and the ethmoid roof.
Findings:
- This represents the first documented case of a supraseptal ethmoid sinus cell in medical literature.
- The anatomical location presents specific surgical challenges.
Implications:
- Recognition of this rare cell is vital for surgeons performing sinonasal procedures.
- Careful dissection is necessary to prevent potential complications such as skull base injury and cerebrospinal fluid (CSF) leaks.
More Related Videos
Related Concept Videos
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
781
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
781
Histone Variants at the Centromere
5.0K
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3...
5.0K
Anatomy of the Heart
119.4K
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
119.4K
What are Cells?
197.4K
Cells are the smallest and basic units of life, whether it is a single cell that forms the entire organism, e.g., in a bacterium or trillions of them, e.g., in humans. No matter what organism a cell is a part of, they share specific characteristics.
Basic Characteristics of Cells
A living cell has a plasma membrane, a bilayer of lipids that separates the aqueous solution inside the cell called the cytoplasm from the outside environment.
Furthermore, a living cell possesses genetic information...
Basic Characteristics of Cells
A living cell has a plasma membrane, a bilayer of lipids that separates the aqueous solution inside the cell called the cytoplasm from the outside environment.
Furthermore, a living cell possesses genetic information...
197.4K
Concentration Cells
25.6K
A concentration cell is a type of a voltaic cell constructed by connecting two almost identical half-cells, both based on the same half-reaction and using the same electrode, differing only in the concentration of one redox species. A concentration cell's potential, therefore, is determined only by the concentration difference of the particular redox species.
Consider the following voltaic cell:
Consider the following voltaic cell:
25.6K
What is Cell Signaling?
129.9K
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
129.9K

