How does pregnant woman eye jump to return a responsibility

summary

What's the matter with the eye jump? There are many opinions about eyelid skipping. The folk opinions are mainly about the fate. In medicine, the opinions about eyelid skipping are mainly caused by the repeated contraction of orbicularis muscle in the eyelid. So, next, I'll give you a detailed introduction about eye skipping

How does pregnant woman eye jump to return a responsibility

First: when the facial nerve that controls the eye muscles is stimulated or compressed, it will cause it to contract, thus causing the eyelid (called eyelid in medicine) to beat. There are two kinds of muscles in the eyelid. One is called orbicularis oculi muscle, which is shaped like a wheel and surrounds the eye. When it contracts, the eyelid will close. This orbicularis oculi muscle is controlled by facial nerve. And another kind of eyelid muscle is called levator palpebrae superioris muscle. When it contracts, the eyelids will open. This muscle is controlled by oculomotor nerve.

Second: in these two kinds of muscle tissues of eyelid, orbicularis oculi muscle plays a very important role in protecting the eyeball. It can lubricate and clean the cornea through continuous closure, and make a protective response to any external stimulation. Under normal circumstances, these activities of opening and closing eyes are dominated by the brain nerve, but once the facial nerve dominating the orbicularis oculi muscle is stimulated by some external factors, it may not listen to the command of the brain and act autonomously, making the orbicularis oculi muscle produce repeated contraction, even spasm or tremor, people will obviously feel the eyelid beating involuntarily, which is eyelid jumping .

Third: most people are limited to the upper eyelid or lower eyelid beat, but some people will gradually develop into the upper and lower eyelid twitch. The facial nerve which dominates the eyelid muscle is stimulated in any part of the conduction pathway, which can lead to the eyelid beating. Different parts of the nerve are stimulated, the location, range and degree of eyelid beating are also different. If the stimulation factor is limited to the nerve endings that dominate the orbicularis oculi muscle, that is, near the eyelid, then the symptom is simple upper eyelid or lower eyelid jump. If the stimulated part is in the main part of facial nerve in the brain cavity, then the beating range will involve the whole upper and lower eyelids. The most intuitive performance is to blink involuntarily, which is called "blepharospasm" in medicine.

matters needing attention

From the perspective of diagnosis, simple eyelid skipping is obviously different from facial spasm. Simple eyelid skipping generally has no depression of facial muscle, asymmetry of nasolabial groove or linear atrophy of cheek; when blinking, orbicularis oris has no traction.