Musculus radialis externus longus is a Latin term commonly used in anatomy to describe a muscle in the forearm that helps with wrist and finger extension. The word is spelled using the IPA phonetic transcription as /ˈmʌskjələs rəˈdeɪliəs ɛkˈstɜːrnəs ˈlɒŋɡəs/. The phonetic transcription reflects the pronunciation of the word as closely as possible, including the stress on certain syllables. While the spelling may seem daunting at first, understanding the phonetics can help make the term more approachable and easier to remember.
Musculus radialis externus longus is a Latin term that refers to a specific muscle in the human body. To provide a comprehensive dictionary definition, the characteristics and functions of the musculus radialis externus longus can be described as follows:
The musculus radialis externus longus, also known as the long external radial muscle, is located in the forearm. It originates from the humerus bone and extends along the outer (lateral) surface of the forearm. It runs parallel to the radius bone and attaches to the base of the second metacarpal bone in the hand.
The primary function of the musculus radialis externus longus is to facilitate the movements of the forearm and hand. It plays a crucial role in flexion and abduction of the wrist joint. When contracted, this muscle assists in pulling the hand backward (extension) and moving it towards the thumb side of the forearm (abduction). These actions contribute to the overall functional capabilities of the wrist and hand, allowing for a wide range of gripping and grasping movements.
Injury or dysfunction of the musculus radialis externus longus can result in impairments in wrist and hand movement, leading to limited flexibility and weakened gripping abilities. Proper conditioning and targeted exercises can help strengthen this muscle, contributing to overall forearm and hand strength.
Overall, the musculus radialis externus longus is a significant component of the forearm musculature that plays a crucial role in facilitating movement and stability of the wrist and hand.
M. extensor carpi radialis longus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.