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Hypopyon

An accumulation of pus in the anterior chamber of the eye.
NCI

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hypotenze

Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.
MSH

Abnormally low blood pressure.
NCI

You`ve probably heard that high blood pressure is a problem. So what about low blood pressure?

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps out blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is the diastolic pressure. Your blood pressure reading uses these two numbers. Both are important. Usually they`re written one above or before the other, such as 120/80. If your blood pressure reading is 90/60 or lower, you have low blood pressure.

Some people have low blood pressure all the time. They have no symptoms and their low readings are normal for them. In other people, blood pressure drops below normal because of some event or medical condition. Some people may experience symptoms of low pressure when standing up too quickly. Low blood pressure is a problem only if it causes dizziness, fainting or in extreme cases, shock.

NIH: National Heart, Lung, and Blood Institute


MEDLINEPLUS

A disorder characterized by a blood pressure that is below the normal expected for an individual in a given environment.
NCI

Any blood pressure that is below the normal expected for an individual in a given environment.
NCI

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HIPOTENTSIO ORTOSTATIKOA (PRESIO BEHEREA)

A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is a finding, and defined as a 20-mm Hg decrease in systolic pressure or a 10-mm Hg decrease in diastolic pressure 3 minutes after the person has risen from supine to standing. Symptoms generally include DIZZINESS, blurred vision, and SYNCOPE.
MSH

fall in blood pressure associated with dizziness, syncope and blurred vision occurring upon standing or when standing motionless in a fixed position.
CSP

Sudden fall of the blood pressure of at least 20/10 mm Hg when a person stands up.
NCI

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nucleus hypothalamicus anterior

Loose heterogeneous collection of cells in the anterior hypothalamus, continuous rostrally with the medial and lateral preoptic areas and caudally with the tuber cinereum.
MSH

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area hypothalamica lateralis

This area is bounded medially by the mammillothalamic tract and the anterior column of fornix. The medial edge of the internal capsule and the subthalamic region form its lateral boundary. It contains the lateral hypothalamic nucleus, tuberomammillary nucleus, lateral tuberal nuclei, and fibers of the MEDIAL FOREBRAIN BUNDLE. (Parent, Carpenter`s Human Neuroanatomy, 9th ed, p710)
MSH

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hypotalamus – nemoci

Neoplastic, inflammatory, infectious, and other diseases of the hypothalamus. Clinical manifestations include appetite disorders; AUTONOMIC NERVOUS SYSTEM DISEASES; SLEEP DISORDERS; behavioral symptoms related to dysfunction of the LIMBIC SYSTEM; and neuroendocrine disorders.
MSH

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hypotalamické hormony

Peptide hormones produced by NEURONS of various regions in the HYPOTHALAMUS. They are released into the pituitary portal circulation to stimulate or inhibit PITUITARY GLAND functions. VASOPRESSIN and OXYTOCIN, though produced in the hypothalamus, are not included here for they are transported down the AXONS to the POSTERIOR LOBE OF PITUITARY before being released into the portal circulation.
MSH

hormones isolated from the hypothalamus which exercise control over other organs, primarily the pituitary gland; members include certain pituitary hormone-releasing hormones and pituitary hormone release inhibiting hormones.
CSP

Releasing and inhibiting hormones secreted by the neurosecretory neurons of the hypothalamus binding to the receptors of the anterior pituitary cells and modulating the release of hormones the pituitary secretes.
NCI

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hypotalamus – nádory

Benign and malignant tumors of the HYPOTHALAMUS. Pilocytic astrocytomas and hamartomas are relatively frequent histologic types. Neoplasms of the hypothalamus frequently originate from adjacent structures, including the OPTIC CHIASM, optic nerve (see OPTIC NERVE NEOPLASMS), and pituitary gland (see PITUITARY NEOPLASMS). Relatively frequent clinical manifestations include visual loss, developmental delay, macrocephaly, and precocious puberty. (From Devita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2051)
MSH

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systém hypotalamus-hypofýza

A collection of NEURONS, tracts of NERVE FIBERS, endocrine tissue, and blood vessels in the HYPOTHALAMUS and the PITUITARY GLAND. This hypothalamo-hypophyseal portal circulation provides the mechanism for hypothalamic neuroendocrine (HYPOTHALAMIC HORMONES) regulation of pituitary function and the release of various PITUITARY HORMONES into the systemic circulation to maintain HOMEOSTASIS.
MSH

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hypotalamus

ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border of the mammillary bodies and forming the inferior and lateral walls of the third ventricle.
CSP

The area of the brain that controls body temperature, hunger, and thirst.
NCI

An important supervisory center in the brain, rich in ganglia, nerve fibers, and synaptic connections. It is composed of several sections called nuclei, each of which controls a specific function. The hypothalamus regulates body temperature, blood pressure, heartbeat, metabolism of fats and carbohydrates, and sugar levels in the blood. Through direct attachment to the pituitary gland, the hypothalamus also meters secretions controlling water balance and milk production in the female. The role of the hypothalamus in awareness of pleasure and pain is well established in the laboratory. It is involved in the expression of emotions, such as fear and rage, and in sexual behaviors. Despite its numerous vital functions, the hypothalamus in humans accounts for only 1/300 of total brain weight, and is about the size of an almond. Structurally, it is joined to the thalamus; the two work together to monitor the sleep-wake cycle.
NCI

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hypotalamus přední

The front portion of the HYPOTHALAMUS separated into the preoptic region and the supraoptic region. The preoptic region is made up of the periventricular gray matter of the rostral portion of the third ventricle and contains the preoptic ventricular nucleus and the medial preoptic nucleus. The supraoptic region contains the PARAVENTRICULAR HYPOTHALAMIC NUCLEUS, the SUPRAOPTIC NUCLEUS, the ANTERIOR HYPOTHALAMIC NUCLEUS, and the SUPRACHIASMATIC NUCLEUS.
MSH

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hypotalamus střední

That middle portion of the hypothalamus containing the arcuate, dorsomedial, and ventromedial nuclei, and the tuber cinereum. The pituitary gland can also be considered part of the middle hypothalamic region.
MSH

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hypotalamus zadní

The part of the hypothalamus posterior to the middle region consisting of several nuclei including the medial mamillary nucleus, lateral mamillary nucleus, and posterior hypothalamic nucleus (posterior hypothalamic area). The posterior hypothalamic area is concerned with control of sympathetic responses and is sensitive to conditions of decreasing temperature and controls the mechanisms for the conservation and increased production of heat.
MSH

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hypotermie

Lower than normal body temperature, especially in warm-blooded animals.
MSH

Abnormally low body temperature.
NCI

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hypotermie indukovaná

Abnormally low BODY TEMPERATURE that is intentionally induced in warm-blooded animals by artificial means. In humans, mild or moderate hypothermia has been used to reduce tissue damages, particularly after cardiac or spinal cord injuries and during subsequent surgeries.
MSH

abnormally low body temperature intentionally induced in warm-blooded animals by artificial means.
CSP

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hypotyreóza

A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, leading to a decrease in BASAL METABOLIC RATE. In its most severe form, there is accumulation of MUCOPOLYSACCHARIDES in the SKIN and EDEMA, known as MYXEDEMA.
MSH

deficiency of thyroid gland activity; characterized by decreased basal metabolic rate, fatigue and lethargy, sensitivity to cold, and menstrual disturbances; untreated it progresses to myxedema; in infants severe hypothyroidism leads to cretinism.
CSP

A disorder characterized by a decrease in production of thyroid hormone by the thyroid gland.
NCI

Too little thyroid hormone. Symptoms include weight gain, constipation, dry skin, and sensitivity to the cold.
NCI

A condition in which the production of thyroid hormone by the thyroid gland is diminished. Signs and symptoms of hypothyroidism include low metabolic rate, tendency to weight gain, somnolence and sometimes myxedema. In the United States, the most common cause of hypothyroidism is Hashimoto`s thyroiditis, an autoimmune disorder.
NCI

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hypotonické roztoky

Solutions that have a lesser osmotic pressure than a reference solution such as blood, plasma, or interstitial fluid.
MSH

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hypotrichóza

Presence of less than the normal amount of hair. (Dorland, 27th ed)
MSH

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Hypovolemický šok

Shock resulting from insufficient blood volume for the maintenance of adequate cardiac output, blood pressure and tissue perfusion.
NCI

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hypoxanthin

6-oxopurine, the base in inosine and its derivatives.
CSP

A purine and a reaction intermediate in the metabolism of adenosine and in the formation of nucleic acids by the salvage pathway.
MSH

A purine-based organic compound in human muscle tissues, Hypoxanthine is formed during purine catabolism as a product of xanthine oxidase action on xanthine, and occasionally is found as a constituent of nucleic acids. The potent anti-inflammatory and cytoprotective effects of purines may be mediated by cell surface adenosine receptors. Hypoxanthine protects against oxidant-induced cell injury by inhibiting activation of nuclear poly(ADP-ribose) polymerase (PARP). (NCI04)
NCI

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hypoxanthinfosforibosyltransferasa

An enzyme that catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanine, or 6-mercaptopurine to the corresponding 5`-mononucleotides and pyrophosphate. The enzyme is important in purine biosynthesis as well as central nervous system functions. Complete lack of enzyme activity is associated with the LESCH-NYHAN SYNDROME, while partial deficiency results in overproduction of uric acid. EC 2.4.2.8.
MSH

Cytoplasmic Hypoxanthine Phosphoribosyltransferases (Purine/Pyrimidine Phosphoribosyltransferase Family) catalyze the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanine, or 6-mercaptopurine to the corresponding 5`-mononucleotides and pyrophosphate. The enzyme is important in purine biosynthesis as well as central nervous system functions. (NCI)
NCI

Encoded by human HPRT1 Gene (Purine/Pyrimidine Phosphoribosyltransferase Family), 217-aa 24-kDa homotetrameric cytoplasmic Hypoxanthine Phosphoribosyltransferase 1 is involved in purine salvage. HPRT1 defects cause Lesch-Nyhan syndrome or gout. (NCI)
NCI

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hypoxanthiny

Purine bases related to hypoxanthine, an intermediate product of uric acid synthesis and a breakdown product of adenine catabolism.
MSH

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damani

Any of certain small mammals of the order Hyracoidea.
MSH

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hysterektomie

Excision of the uterus.
MSH

surgical removal of the uterus.
CSP

Surgery to remove the uterus and, sometimes, the cervix. When the uterus and the cervix are removed, it is called a total hysterectomy. When only the uterus is removed, it is called a partial hysterectomy.
NCI

A hysterectomy is an operation to remove a woman`s uterus. The uterus is the place where a baby grows when a woman is pregnant. Sometimes, the ovaries and fallopian tubes also are taken out. Hysterectomies are very common – one in three women in the United States has had one by age 60.

Your health care provider might recommend a hysterectomy if you have

  • Fibroids
  • Endometriosis not cured by medicine or surgery
  • Uterine prolapse – when the uterus drops into the vagina
  • Cancer of the uterus, cervix, or ovaries
  • Vaginal bleeding that persists despite treatment
  • Chronic pelvic pain; surgery can be a last resort

Before having a hysterectomy, it is important to discuss other possible treatments with your health care provider. A hysterectomy will stop your periods, and you will no longer be able to get pregnant. If the surgery removes both ovaries, you will enter menopause.

National Women`s Health Information Center


MEDLINEPLUS

uterus removal
CHV

A surgical procedure to remove the uterine body (partial hysterectomy) or the uterine body and cervix (total hysterectomy). — 2004
NCI

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hysterektomie vaginální

Removal of the uterus through the vagina.
MSH

A surgical procedure to remove the uterine body and cervix, via the vaginal approach.
NCI

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hysterie

Historical term for a chronic, but fluctuating, disorder beginning in early life and characterized by recurrent and multiple somatic complaints not apparently due to physical illness. This diagnosis is not used in contemporary practice.
MSH

behavior exhibiting excessive or uncontrollable emotion, such as fear or panic; mental disorder characterized by emotional excitability and sometimes by amnesia or a physical deficit, such as paralysis, or a sensory deficit, without an organic cause.
CSP

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Disociační fuga

subtype of hysterical neurosis; the current classification is dissociative disorders; sudden temporary alterations in the normally integrative functions of consciousness.
CSP

A disorder characterized by sudden, unexpected travel away from one`s home or place of work accompanied by an inability to recall one`s past; the individual is confused about his or her personal identity and may assume a new identity.
NCI

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hysterosalpingografie

Radiography of the uterus and fallopian tubes after the injection of a contrast medium.
MSH

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hysteroskopie

Endoscopic examination, therapy or surgery of the interior of the uterus.
MSH

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hysterotomie

An incision in the uterus, performed through either the abdomen or the vagina.
MSH

A surgical incision made on the uterus to access the uterine cavity.
NCI

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