The spelling of "nucleus nervi oculomotorii" is pronounced as [ˈnuːkliəs ˈnɜːrvaɪ ˌɒkjʊləməʊˈtɔːri] in the International Phonetic Alphabet (IPA). This word involves complex medical terminology that pertains to the eye muscles. The word 'nucleus' refers to the center of a cell while 'nervi' means nerve in Latin. 'Oculomotorii' is derived from 'oculus', which means eye, and 'motor', which means movement. Together, the word describes the nerve center that facilitates eye control, allowing for proper muscle movement and alignment.
The term "nucleus nervi oculomotorii" refers to a specific anatomical structure found within the brain. In Latin, "nucleus" means "core" or "central part," while "nervi oculomotorii" translates to "oculomotor nerve." Together, "nucleus nervi oculomotorii" literally means the "central part of the oculomotor nerve."
The nucleus nervi oculomotorii is a group of specialized nerve cells located in the brainstem. It is situated within the midbrain, specifically within the tegmentum, which is part of the ventral region of the midbrain. This nucleus plays a critical role in controlling the movements of the eye through the oculomotor nerve (also known as cranial nerve III).
The oculomotor nerve is responsible for controlling the majority of eye movements, including raising and lowering the eyelids, moving the eyes in different directions, and adjusting the size of the pupil to regulate the amount of light entering the eye. The nucleus nervi oculomotorii receives input from various sources, including other brain areas involved in coordinating eye movements, allowing for precise control of these visual functions.
Damage or dysfunction of the nucleus nervi oculomotorii can lead to various eye movement disorders, known as oculomotor nerve palsy. This condition can result in symptoms such as double vision, drooping eyelids, difficulty moving the eyes, and abnormal pupil responses. Understanding the anatomy and function of the nucleus nervi oculomotorii is crucial for diagnosing and treating such conditions.
N. of the oculomotor, nerve, n. of the 3rd nerve, a groun of cells in the ventral part of the stratum griseum centrale beneath the superior quadrigeminal body.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.