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Hypoparathyroidism
Hypoparathyroidism Parathyroid hormone insufficiency due to lack of secretion of the parathyroid gland.
RELATED TERMS--------------------------------------
Hormone
A chemical substance formed in the body that is carried in the bloodstream to affect another part of the body; an example is thyroid hormone, produced by the thyroid gland in the neck, which affects growth, temperature regulation, metabolic rate, and other body functions.
Gland
An organ that releases a chemical. Endocrine glands are ductless and secrete hormones directly into the bloodstream. Exocrine glands secrete externally, either through a tube or duct.
SIMILAR TERMS--------------------------------------
Hypodermic
Beneath the skin.
Hypoglicemia
A condition in which the blood sugar is lower than normal.
Hypoglycemia
Low levels of blood sugar.
Hypoglycemia Unawareness
A situation in which the usual epinephrine-induced symptoms of a fall in blood sugar are, for a variety of reasons, either not felt or not recognized. |This situation may be dangerous, as the patient may go from functioning normally to unconscious within a short time. It is generally thought that if such a patient is allowed to maintain somewhat elevated blood sugar levels for several weeks, that the hypoglycemic unawareness may resolve.
Hypophilia
A condition or syndrome, variable in etiology and diagnosis, of being sexuoerotically substandard or deficient, particularly with respect to some aspect of genital functioning at the acceptive phase; impaired or deficient in sexual and genital responsiveness or frequency. The condition of being subnormal in sexual and genital responsiveness or frequency.
Hypophosphataemic rickets
X-linked, vitamin D-resistant. May resemble ankylosing spondylitis.
Hypophosphatasia
Rare autosomal recessive cause of rickets. Associated with a lack of alkaline phosphatase.
Hypophysis
Pituitary gland.
Hypopituitarism
A generalized endocrine deficiency condition produced by failure, either partial or complete, of the pituitary gland to secrete its proper hormones. Failure after surgery for a pituitary tumor is usually complete. Idiopathic failure may be either complete or partial. In some instances, partial failure may involve chiefly the secretion of pituitary gonadotropins, the hormones that stimulate the ovaries or the testes to produce their own hormones.
Hypoplasia
Underdevelopment of a tissue or organ usually due to a decrease in the number of cells.
Hyposensitisation
See specific allergy vaccination.
Hyposensitization
To treat with frequent, small injections of an antigen to decrease the symptoms of an allergy to that antigen. Also called desensitization.
Hypospadias
A birth defect in the positioning of the urethral (urinary meatus) opening on the penis in males or into the vagina in females. In mild male hypospadias, the opening is only slightly displaced from the tip of the penis. In severe male hypospadias, the opening is in the female position, at the base of the scrotum, and the penis has an open gutter on its underside, instead of a covered urinary canal. A hypospadiac penis may be normal sized or small. 2. A birth defect in the male in which the urinary opening is on the underside of the shaft of the penis anywhere from the glans (first degree) to the perineum (third degree or penoscrotal hypospadias). A small penis with a severe degree of hypospadias is identical in appearance with an enlarged clitoris below which is a single opening or urogenital sinus leading to both the urethra and the vagina. Artificial hypospadias may occur as a sequel to an injury, as in a circumcision accident, or be self-inflicted.
Hypotension
Subnormal arterial blood pressure.
Hypothalamus
The portion of the brain's limbic system that integrates incoming information, and either increases or decreases the release of certain hormones that instruct the pituitary gland to release hormones.
Hypothermia
Low body temperature.
Hypothyroidism
Deficiency of thyroid hormone; the opposite of hyperthyroidism. The thyroid gland is in the throat, near the larynx or Adam's apple.
Hypotonia
Abnormally decreased tonicity, tension or strength; ocular hypotony refers to low intraocular pressure.
Hypotonicity
Diminished muscle tone; limp muscles.
Hypovolemia
A decreased amount of blood in the body.
Hypoxemia
Subnormal oxygenation of arterial blood, short of anoxia.
Hypoxia
Abnormal oxygen content in the organs and tissues of the body.
Hypoxyphilia
Asphyxiophilia [from Latin, hypoxia, oxygen deprivation + -philia].
PREVIOUS AND NEXT TERMS--------------------------------------
Hyperthyroidism
Overproduction of thyroid hormone.
Hyperventilation
Rapid or deep breathing producing faintness, numbness, chest pain, apprehension and tingling, and spasms of the extremities.
Hypnosis
A sleep-like state induced by the suggestions of a hypnotist.
Hypnotic
1. Having to do with hypnosis. 2. Causing sleep.
Hypodermic
Beneath the skin.
Hypoparathyroidism
Hyposensitization
To treat with frequent, small injections of an antigen to decrease the symptoms of an allergy to that antigen. Also called desensitization.
Hypothermia
Low body temperature.
Hysteria
1. Wild, uncontrolled excitement or other feelings. 2. A disorder in which anxiety is converted into physical symptoms that have no physical basis.
Holter monitoring
ECG recorded over 24 hours to monitor heart rhythms.ÿ A small recording device is worn by the individual.
Hemianopsia
Loss of one half of the field of vision (the area that can be seen by each eye when staring straight ahead).
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