appendix

Anatomy The vermiform appendix is present only in humans, certain anthropoid apes and the wombat (a nocturnal, burrowing Australian marsupial). It isa blind muscular tube with mucosal, submucosal, muscular and serosal layers. Morphologically, it is the undeveloped distal end of the large caecum found in many lower animals. At birth, the appendix is short and broad at its junction with the caecum, but differential growth of the caecum produces the...

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Corneal Ulcer

Corneal UlcerSynonyms and Related KeywordsBacterial keratitis, Fungal keratitis, Acanthamoeba keratitis, Herpes simplex keratitis, corneal infection, open sore on the cornea, contact lenses, contact lens wearers, ulcerative keratitisWhat is corneal ulcer ? A corneal ulcer is an erosion or open sore in the outer layer of the cornea the clear structure overlying the iris (which is the colored part of your eye). It is common associated with infection...

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Hormones

Hypothalamic and Hypophyseal HormonesThe endocrine system is controlled by the brain. Nerve cells of the hypothalamussynthesize and release messenger substances that regulate adenohypophyseal(AH) hormone release or are themselves secreted into the body ashormones. The latter comprise the socalled neurohypophyseal (NH) hormones.The axonal processes of hypothalamic neurons project to the neurohypophysis,where they store the nonapeptides vasopressin...

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