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The lacrimal nerve branches from the ophthalmic nerve immediately before traveling through the superior orbital fissure to enter the orbit. [citation needed]At the superior portion of the lateral wall of the orbit, it also receives a secretomotor [2]: 495 communicating [2]: 402 parasympathetic [3] branch from the zygomaticotemporal nerve [2]: 495 for the lacrimal gland.
The lacrimal gland is a compound tubuloacinar gland, it is made up of many lobules separated by connective tissue, each lobule contains many acini.The acini composed of large serous cells which, produce a watery serous secretion, serous cells are filled with lightly stained secretory granules and surrounded by well-developed myoepithelial cells and a sparse, vascular stroma.
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Receives taste from the posterior 1/3 of the tongue, provides secretomotor innervation to the parotid gland, and provides motor innervation to the stylopharyngeus. Some sensation is also relayed to the brain from the palatine tonsils. This nerve is involved together with the vagus nerve in the gag reflex. X Vagus: Both sensory and motor
The lacrimal apparatus is the physiological system containing the orbital structures for tear production and drainage. [1] It consists of: The lacrimal gland, which secretes the tears, and its excretory ducts, which convey the fluid to the surface of the eye; it is a j-shaped serous gland located in lacrimal fossa.
These paired ganglia supply all parasympathetic innervation to the head and neck. ciliary ganglion (sphincter pupillae, ciliary muscle) pterygopalatine ganglion (lacrimal gland, glands of nasal cavity) submandibular ganglion (submandibular and sublingual glands) otic ganglion (parotid gland)
The lacrimal artery is an artery of the orbit. It is a branch of the ophthalmic artery. It accompanies the lacrimal nerve along the upper border of the lateral rectus muscle, travelling forward to reach the lacrimal gland. It supplies the lacrimal gland, two rectus muscles of the eye, the eyelids, and the conjunctiva.
The lacrimal apparatus is the physiological system containing the orbital structures for tear production and drainage. [3] It consists of: The lacrimal gland, which secretes the tears, and its excretory ducts, which convey the fluid to the surface of the human eye; it is a serous gland located in lacrimal fossa. It is a j-shaped gland;