Related Experiment Video
Updated: Feb 28, 2026
Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors
Published on: January 3, 2017
One vowel or two? Diphthongs, digraphs, ligatures, and diaereses, oh my!
1Department of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Abstract:
This is the first in a short series about orthography in anatomical Latin. Although phonology is an important aspect of diphthongs and digraphs, the focus here is on spelling, not the more complicated topic of pronunciation. Recommendations are made for standard spellings of words that contain or may appear to contain diphthongs in Latin anatomical words or their ancient Greek sources. Ligatures and diaereses (typographical symbols that were developed after the classical period) are not recommended for use in anatomical Latin terms. Clin. Anat. 30:1013-1016, 2017. © 2017 Wiley Periodicals, Inc.
Related Concept Videos
01:21Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
01:16Structure of Conjugated Dienes
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
02:36Molecular Geometry and Dipole Moments
01:29Diels–Alder Reaction: Characteristics of Dienes
Characteristics of the diene
Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable,...
02:28Structure and Nomenclature of Ethers
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent...
01:29Dysrhythmias III: Characteristics of Dysrhythmias