| pituitary hormones, anterior | Protein, glycoprotein, or polypeptide hormones secreted by the anterior lobe of the pituitary gland. (12 Dec 1998) |
|---|---|
| pituitary hormones, posterior | Hormones released from the posterior lobe of the pituitary, including vasopressin (antidiuretic hormone) and oxytocin. They are formed in the neuronal cells of the hypothalamic nuclei and stored in nerve cell endings in the posterior pituitary (neurohypophysis). (12 Dec 1998) |
| pituitary infantilism | Short stature due to underpreformance of the pituitary gland (specifically of the anterior pituitary). (12 Dec 1998) |
| pituitary membrane | The mucous membrane lining the nasal cavity. (12 Dec 1998) |
| pituitary myxoedema | Myxoedema resulting from inadequate secretion of the thyrotropic hormone; commonly occurs in association with inadequate secretion of other anterior pituitary hormones. (05 Mar 2000) |
| pituitary stalk section | Transection of the neurovascular connection between the hypothalamus and the pituitary gland. (05 Mar 2000) |
| pituitary-adrenal system | The interactions between the anterior pituitary and adrenal glands, in which corticotropin (acth) stimulates the adrenal cortex and adrenal cortical hormones suppress the production of corticotropin by the anterior pituitary. (12 Dec 1998) |
| pituite | Mucus, phlegm. Origin: L. Pituita: cf. F. Pituite. Cf. Pip a disease of fowls. Source: Websters Dictionary (01 Mar 1998) |
| pituitous | Consisting of, or resembling, pituite or mucus; full of mucus; discharging mucus. <medicine> Pituitous fever, typhoid fever; enteric fever. Origin: L. Pituitosus: cf. F. Pituiteux. Source: Websters Dictionary (01 Mar 1998) |
| pityriasic | Relating to or suffering from pityriasis. (05 Mar 2000) |
| pityriasis | <dermatology> A name originally applied to a group of skin diseases characterised by the formation of fine, branny scales, but now used only with a modifier. Origin: Gr. Pityron = bran (18 Nov 1997) |
| pityriasis amiantacea | An inflammatory condition of the scalp in which heavy scales extend onto the hairs and bind the proximal portions together; it is not caused by a fungus. Synonym: pityriasis amiantacea. (05 Mar 2000) |
| pityriasis capitis | <dermatology> Dried skin that flakes free from the scalp. (27 Sep 1997) |
| pityriasis circinata | A mild exanthematous inflammation of unknown aetiology. It is characterised by the presence of salmon-coloured maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalised, affecting chiefly the trunk, and the course is often self-limiting. (12 Dec 1998) |
| pityriasis lichenoides | A subgroup of parapsoriasis itself divided into acute and chronic forms. The acute form is characterised by the abrupt onset of a generalised, reddish-brown, maculopapular eruption. Lesions may be vesicular, haemorrhagic, crusted, or necrotic. Histologically the disease is characterised by epidermal necrolysis. The chronic form shows milder skin changes with necrosis. An important variant of the chronic form is lymphomatoid papulosis. (12 Dec 1998) |