Erectile dysfunction (ED, "male impotence") is sexual dysfunction characterized by the inability to develop or maintain an erection of the penis during sexual performance. A penile erection is a hydraulic effect of blood entering and being retained in sponge-like bodies within the penis. The process is often initiated as a result of sexual arousal when signals are transmitted from the brain to nerves in the penis. Erectile dysfunction is indicated when an erection is difficult to produce. There are various circulatory causes, including alteration of the voltage-gated potassium channel, as in...
Erectile dysfunction (ED, "male impotence") is sexual dysfunction characterized by the inability to develop or maintain an erection of the penis durin...
L'oeil est un organe complexe doté d'une anatomie et d'une physiologie uniques. La structure de l'oeil peut être divisée en deux parties principales : le segment antérieur et le segment postérieur. Le segment antérieur de l'oeil occupe environ un tiers tandis que la partie restante est occupée par le segment postérieur. Les tissus tels que la cornée, la conjonctive, l'humeur aqueuse, l'iris, le corps ciliaire et le cristallin constituent la partie antérieure.
L'oeil est un organe complexe doté d'une anatomie et d'une physiologie uniques. La structure de l'oeil peut être divisée en deux parties principale...
The eye is a complex organ with unique anatomy and physiology. The structure of the eye can be divided into two main parts: anterior segment and posterior segment. The anterior segment of the eye occupies approximately one-third while the remaining portion is occupied by the posterior segment. Tissues such as the cornea, conjunctiva, aqueous humor, iris, ciliary body, and lens make up the anterior portion.
The eye is a complex organ with unique anatomy and physiology. The structure of the eye can be divided into two main parts: anterior segment and poste...
