Jaw jerk reflex
Jaw jerk reflex
The Jaw jerk reflex or Mandibular reflex (== Template:IPA ==
The Template:IPA (International Phonetic Alphabet) is a system of phonetic notation based primarily on the Latin alphabet. It was devised by the International Phonetic Association in the late 19th century as a standardized representation of the sounds of spoken language.
Pronunciation
The pronunciation of the term "IPA" is /aɪ piː eɪ/ in English.
Etymology
The term "IPA" is an acronym for the International Phonetic Alphabet. The International Phonetic Association, founded in 1886, created the IPA to provide a single, universal system for the transcription of spoken language.
Related Terms
- Phonetic notation: A system used to visually represent the sounds of speech. The IPA is one type of phonetic notation.
- Phonetics: The study of the physical sounds of human speech. It is concerned with the physical properties of speech sounds (phonemes), and the processes of their physiological production, auditory reception, and neurophysiological perception.
- Phonology: The study of the way sounds function within a particular language or languages. While phonetics concerns the physical production, acoustic transmission and perception of the sounds of speech, phonology describes the way sounds function within a particular language or languages.
- Transcription (linguistics): The systematic representation of spoken language in written form. The source of the words transcribe and transcription, the term means "to write across" in Latin, and it's the process of converting spoken language into written form. In linguistics, this is often done using the IPA.
External links
- Medical encyclopedia article on Jaw jerk reflex
- Wikipedia's article - Jaw jerk reflex
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski) is a reflex that is used to test the integrity of the sensory neurons and motor neurons involved in the functioning of the trigeminal nerve.
Etymology
The term "Jaw jerk reflex" is derived from the action involved in the reflex, where a slight tap on the jaw results in a jerk or reflexive action. The term "Mandibular reflex" is derived from the Latin word "mandibula" meaning "jaw", and the term "reflex" which is derived from the Latin word "reflexus" meaning "bend back, turn back".
Function
The Jaw jerk reflex is a stretch reflex that assesses the sensory and motor pathways within the trigeminal nerve. It is elicited by a sudden downward tap on the chin while the mouth is slightly open. A normal response is a slight closure of the mouth. An exaggerated response (hyperreflexia) can indicate an upper motor neuron lesion.
Related Terms
- Trigeminal nerve: The fifth cranial nerve, which provides sensory innervation to the face and motor innervation to the muscles of mastication.
- Stretch reflex: A muscle contraction in response to stretching within the muscle.
- Hyperreflexia: An overactive or overresponsive reflex.
- Upper motor neuron: A motor neuron that originates in the motor region of the cerebral cortex or the brain stem and carries motor information down to the final common pathway.
See Also
External links
- Medical encyclopedia article on Jaw jerk reflex
- Wikipedia's article - Jaw jerk reflex
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski