| preen gland | A compound alveolar gland of birds located on the dorsum of the tail or pygostyle; the secretion of this gland (fatty acids and wax) exits from a papilla on the dorsal surface at the base of the tail feathers; the bird applies the substance to its feathers by means of the bill when preening. The uropygial gland is lacking in some species but its waterproofing ability is essential to water birds. Synonym: glandula uropygius, oil glands, preen gland. (05 Mar 2000) |
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| prehyoid gland | An isolated mass, or one of several such masses, of thyroid tissue, sometimes present in the side of the neck, or just above the hyoid bone (suprahyoid accessory thyroid gland), or even as low as the arch of the aorta. Synonym: glandula thyroidea accessoria, accessory thyroid, prehyoid gland, suprahyoid gland, thyroidea accessoria, thyroidea ima, Wolfler's gland. (05 Mar 2000) |
| harderian gland | A sebaceous gland that, in some animals, acts as an accessory to the lacrimal gland. The harderian gland excretes fluid that facilitates movement of the third eyelid. (12 Dec 1998) |
| cytocrine gland | A cell which secretes things that move directly from cell to cell. (09 Oct 1997) |
| saccular gland | A single alveolar gland. (05 Mar 2000) |
| salivary gland | Any of the saliva-secreting exocrine glands of the oral cavity. Synonym: glandula salivaria. (05 Mar 2000) |
| salivary gland biopsy | <investigation, procedure, surgery> A procedure which involves the removal of a small specimen of salivary gland tissue for microscopic analysis. Used in the diagnosis of Sjogren's syndrome. Risks include localised bleeding, infection and injury to the facial nerve. (21 Mar 1998) |
| salivary gland calculi | Calculi occurring in a salivary gland. most salivary gland calculi occur in the submandibular gland, but can also occur in the parotid gland and in the sublingual and minor salivary glands. (12 Dec 1998) |
| salivary gland disease | Disorder of salivary glands; i.e., Sjogren's syndrome. (05 Mar 2000) |
| salivary gland fistula | An abnormal passage between a salivary duct or gland and the cutaneous surface, or into the oral cavity through other than a normal pathway. (12 Dec 1998) |
| salivary gland hormone | <chemical> Chemical name: Parotin (12 Dec 1998) |
| salivary gland virus | A highly species-specific herpesvirus (cytomegalovirus) with particular affinity for the salivary gland tissue. Synonym: salivary gland virus. (05 Mar 2000) |
| salt gland | A compound tubular gland, located around the eyes and nasal passages in marine animals and birds, the physiology of which figures in water-electrolyte balance. The pekin duck serves as a common research animal in salt gland studies. A rectal gland or rectal salt gland in the dogfish shark is attached at the junction of the intestine and cloaca and aids the kidneys in removing excess salts from the blood. (storer, usinger, stebbins & nybakken: general zoology, 6th ed, p658) (12 Dec 1998) |
| prostate gland | A gland in the male that surrounds the neck of the bladder and urethra. The prostate contributes to the seminal fluid. (16 Dec 1997) |
| hibernating gland | A thermogenic type of adipose tissue containing a dark pigment, and arising during embryonic life in certain specific areas in many mammals, including man. It is prominent in the newborn of all species in which it occurs and remains a distinct and conspicuous tissue in the adults of certain species, especially those that hibernate. It is also called brown adipose tissue. (12 Dec 1998) |