Dactyly - Wikipedia
In biology, dactyly is the arrangement of digits (fingers and toes) on the hands, feet, or sometimes wings of a tetrapod animal. The term is derived from the Greek word δακτυλος ( dáktylos ) meaning "finger."
Polydactyly (Extra Digits): Types, Causes & Treatment - Cleveland Clinic
2022年10月14日 · Polydactyly is the medical term for having extra fingers or toes (digits). You might also see it referred to as hyperdactyly. It’s one of the most common birth defects that affects babies’ hands and feet. Polydactyly that causes extra fingers to form on your child’s hand is a form of congenital hand difference.
Genetic Overview of Syndactyly and Polydactyly - PMC
2017年11月2日 · Syndactyly (ie, digit fusion, typically via webbing) is a common inherited and clinically heterogeneous malformation. 1 It can be syndromic, comprising more than 300 distinct anomalies, 1 or nonsyndromic, existing as 1 of 9 nonsyndromic forms. 2 It also varies phenotypically between families.
10.2: Bird Dactyly - Biology LibreTexts
The order in which each type of dactyly evolved is unknown and at least one has evolved multiple times. Figure by Jessica Niccum, Alexis Amador, and Ajna Rivera Botelho et al (2014) examined the development of the zygodactyl foot seen in birds like budgies.
Brachydactyly Types - Causes & Outlook - Cleveland Clinic
Brachydactyly (brack-ee-dack-til-ee) means “short digits” and is a general term to identify fingers and toes that are shorter than normal. Brachydactyly is a genetic condition, and it happens because of a gene mutation that affects bone growth.
Types of Congenital Hand Deformities | NYU Langone Health
Syndactyly is a condition in which two or more fingers fail to separate when a baby is in the womb, resulting in “webbed” fingers at birth. It usually involves the middle and ring fingers.
Polydactyly - StatPearls - NCBI Bookshelf - National Center for ...
2023年8月8日 · Introduction. Polydactyly consists of poly that means many and dactylos, which means digits. Polydactyly, also known as hyperdactyly, is the most common congenital anomaly of hand and foot. It is characterized by an extra finger or toe that may results from defective development during anterior-posterior patterning of developing limb.
Polydactyly: Symptoms, causes, and treatments - Medical News Today
2018年4月24日 · Polydactyly is a condition where someone is born with one or more extra fingers or toes. It can occur on one or both hands or feet. The name comes from the Greek poly (many) and dactylos...
A review of polydactyly and its inheritance: Connecting the dots
2022年12月12日 · This study collects what is known about the inheritance underpinnings of syndromic and non-syndromic polydactylies and highlights dactyly presentations with unknown genetic roots. This review summarizes the current information and genetics-enhanced understanding of polydactyly.
Macrodactyly: decision-making and surgery timing
2018年9月12日 · Macrodactyly is a rare condition in which fingers, hands or limb growth is unregulated, resulting in overgrowth of tissues in the affected extremities. It is critical to properly assess these extremities for signalling pathway, psychological impact and potential surgical intervention, to achieve the best possible outcome for each patient.