In human physiology, the lacrimal glands are paired, exocrine glands in the shape of almonds, one for each eye that secretes an aqueous layer of tear film. They are located in the upper lateral region of each orbit, in the lacrimal patch of the orbit formed by the anterior bone. The lacrimal gland produces tears, which then flow into channels that connect to the torn sack. From this bag, tears run down the tear duct.
Anathema divides the gland into two sections. The smaller part of the novel lies close to the eye, along with the inner surface of the eyelid; if the upper eyelid is turned up, you can see part of the eyelids. The orbital part contains small, interstitial channels that unite to form 3-5 major secretory channels, connecting 5-7 channels in the eyelid, before the secreted fluid can enter the surface of the eye. These pass tears through the tear duct to the torn sack, in turn to the nasal-lacrimal canal, which throws them into the nose.
Lachrymal glands are also present in other mammals, such as horses.
The lacrimal gland produces a tear above each eyeball. They still supply tear fluid that rubs off the surface of the eye every time you blink with your eyelids. A common problem is inflammation or swelling of the lacrimal gland.
Symptoms of lacrimal gland inflammation
#Discomfort in the area of tear ducts.
#Excessive discharge or tear.
#Ignition of the outer part of the top cover.
#Sensitivity and redness of the outer part of the top cover.
#Inflammation of the lymph nodes before the ear.
#Pain in the area of inflammation.
swelling of the lacrimal gland treated
Based on the results of diagnostic tests, the cause of lacrimal edema is determined. Depending on the cause of the edema, the condition is treated. If the cause is a viral condition, such as a pig, the doctor will prescribe rest and warm compresses. If a more serious underlying disease is the cause, the disease will first be treated. Most patients return completely from the tear glands.
Structure of lacrimal gland
The lacrimal gland is a complex tubuloacinar gland, consists of many petals separated by connective tissue, each flake contains many acini. Acini contain only sera and produce watery raw secretions. Each acinus consists of a grape-like mass of lacrimal glands, whose vertices point to the central light. The central light of many units converges to form intra-teeth lines, and then merge, forming channels between the layers. The gland lacking fringes.
The tear artery, originating from the ophthalmic artery, provides the tear gland. Venous blood returns via a better ophthalmic vein.
The glands run down to superficial parotid glands.
Delivery of nerves
Lachrymal nerve, derived from the optic nerve, provides a sensual component of the lacrimal gland. A larger camouflage nerve, originating from the facial nerve, provides the parasympathetic component of the autonomic lacrimal gland. The larger circulatory nerve runs alongside the V1 and V2 branches of the trigeminal nerve. The proximity of the larger pustular nerve to the trigeminal nerve branches explains the phenomenon of trigeminal nerve changes that causes impaired lacrimation, although the trigeminal nerve does not provide the lacrimal gland.
The parasympathetic supply of the nerve comes from the tear nucleus of the facial nerve in the bridge. From the pons, the parasympathetic fibers run into the nervus intermedius (small sensory elements of the facial nerve) to the genic ganglia, but they do not connect there. Then, from the squamous cell, the precancerous fibers run into the larger stoneware core (the nerve of the facial nerve), which transmits parasympathetic secretion and motor fibers through the lumbar sac, where it connects to the deep round nerve (which includes postganglionic sympathetic fibers from the superior cervical ganglion), forming the nerve of the lung canal (median nerve), which then passes through the pterygoid channel to the pterygopalatine ganglion.
synapse of fibers
Here, the synapse of fibers and postganglionic fibers connect to the fibers of the maxillary nerve. In the pterygopalatine fragment itself, the parasympathetic secretory-motor fibers interact with the zygomatic nerve, and then react again, connecting to the lacrimal branch of the ophthalmological division of the CNS, which provides the sensory innervation to the lacrimal gland together with the eyelids and the conjunctiva.
The sympathetic postganglionic fiber comes from the superior cervical ganglion. They move as an occipital plexus with the internal carotid artery before they connect and form a deep spinal nerve that connects the larger pustular nerve in the pterygoid channel. Together, the greater rhombic force and deep nerve nerves create nerves in the pterygoid channel (median nerve) and reach the pterygopalatine ganglia at the bottom of the pulmonary bottom. In contrast to their parasympathetic counterparts, the sympathetic fibers do not synthesize in the pterygopalatine ganglion, doing so in a sympathetic torso. However, they still run with the parasympathetic fibers innervating the lacrimal gland.