| 영문 | parasympathetic nerves | 한글 | 부교감신경 |
|---|---|---|---|
| 설명 | 자율신경계의 하나로써 주로 긴장이 풀어져 있을 때 작용한다. 특히 심장에 대한 부교감 작용을 보면, 주로 미주신경을 통해 작용을 한다. 미주신경은 심장의 박동원(박동을 일으키는 작용을 하는 곳으로 굴심방결절)을 억제시켜 심장의 운동을 억제한다. 하지만, 실제적으로는 심장의 박동을 억제하는 대신에 심실의 수축을 강화시킴으로 심장의 수축력을 증가시켜 심장으로부터 대동맥으로 나가는 혈액량은 증가한다. 이에 비해 교감신경은 심장의 운동을 빠르게 하여 혈압을 증가시키고, 맥박을 증가시킨다. |
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| 영문 | division | 한글 | 분열 |
|---|---|---|---|
| 설명 | 단세포의 개체가 등가인 두 개의 새로운 개체로 나뉘는 것. 분열에는 대상에 따라 염색체-핵-세포분열 등이 있으며, 또 생장점이 분열하는 경우를 생장점 분열, 가지가 나뉘는 경우에는 분지라고 한다. |
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| 영문 | hepatic portal system | 한글 | 간문맥계 |
|---|---|---|---|
| 설명 | 위, 작은창자이나 큰창자에서 영양분을 흡수하기 위한 모세혈관조직은 모두 간으로 연결된다. 즉 소화기에 흡수한 영양분이 가득한 피는 모두 간으로 연결되는데 이것을 문맥계라고 한다. |
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| 영문 | system | 한글 | 계, 계통 |
|---|---|---|---|
| 설명 | 인체를 구성하는 계는 다음과 같이 구분된다. 1) 심장혈관계통(cardiovascular system) 2) 호흡기계(respiratory system) 3) 소화기계(digeshive system) 4) 비뇨기계(urinary system) 5) 생식기계(genital system) 6) 혈액계(hematologic system) 7) 내분비계(endocrine system) 8) 신경계(nervous system) 9) 골격계(skeletal system) 10) 근육계(muscular system) 11) 피부계(integumentary system). |
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| 영문 | musculoskeletal System | 한글 | 근골격계 |
|---|---|---|---|
| 설명 | 근육과 이들 근육이 붙어서 같이 활동을 수행하는 골격(뼈를 통털어 말함)을 함께 부르는 말. 따라서 여기의 근육은 모두 가로무늬근에 속하며, 수의적으로 움직일 수 있다. |
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| PV | pancreatic vein; papillomavirus; paraventricular; paravertebral; pemphigus vulgaris; peripheral vasc... |
|---|---|
| CDC | calculated date of confinement; cancer diagnosis center; capillary diffusion capacity; cell division... |
| parasym | parasympathetic |
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| ISIS | image selected in vivo spectroscopy; imaging science and information system; information system-imag... |
| central nervous system | <anatomy, neurology> Pertaining to the brain, cranial nerves and spinal cord. It does not include muscles or peripheral nerves. In invertebrates, the central nervous system is composed of the segmental ganglia of the ventral nerve cord together with the fused ganglia or brain at the anterior end. Acronym: CNS (12 Jan 1998) |
|---|---|
| central nervous system agents | A class of drugs producing both physiological and psychological effects through a variety of mechanisms. They can be divided into "specific" agents, e.g., affecting an identifiable molecular mechanism unique to target cells bearing receptors for that agent, and "non-specific" agents, those producing effects on different target cells and acting by diverse molecular mechanisms. Those with non-specific mechanisms are generally further classed according to whether they produce behavioural depression or stimulation. Those with specific mechanisms are classed by locus of action or specific therapeutic use. (12 Dec 1998) |
| central nervous system depressants | A very loosely defined group of drugs that tend to reduce the activity of the central nervous system. The major groups included here are ethyl alcohol, anaesthetics, hypnotics and sedatives, narcotics, and tranquillising agents (antipsychotics and antianxiety agents). (12 Dec 1998) |
| central nervous system infections | Diseases of the central nervous sytem collectively, caused by pathogenic organisms. (12 Dec 1998) |
| central nervous system neoplasms | Neoplasms located in the brain, spinal cord, or meninges. (12 Dec 1998) |
| central nervous system stimulants | A loosely defined group of drugs that tend to increase behavioural alertness, agitation, or excitation. They work by a variety of mechanisms, but usually not by direct excitation of neurons. The many drugs that have such actions as side effects to their main therapeutic use are not included here. (12 Dec 1998) |
| metameric nervous system | That part of the nervous system which innervates body structures developed in ontogeny from the segmentally arranged somites or, in the head region, branchial arches. The term implies reference to the neural mechanisms intrinsic to the spinal cord and brainstem (represented by the sensory nuclei, motoneuronal cell groups, and their associated interneurons in the reticular formation); by strict definition it should exclude the autonomic nervous system. (05 Mar 2000) |
| nervous system | The entire integrated system of nerve tissue in the body: the brain, brainstem, spinal cord, nerves and ganglia. (16 Dec 1997) |
| nervous system abnormalities | Congenital structural abnormalities of the nervous system. (12 Dec 1998) |
| nervous system physiology | Functions and activities of the nervous system as a whole or with reference to the peripheral or the central nervous system. (12 Dec 1998) |
| nervous system, sympathetic | A part of the nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. The sympathetic nervous system together with the parasympathetic nervous system (that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles) constitute the autonomic nervous system. (12 Dec 1998) |
| sympathetic nervous system | <anatomy, physiology> One of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord and connect to the paravertebral chain of sympathetic ganglia. Innervate heart and blood vessels, sweat glands, viscera and the adrenal medulla. most sympathetic neurons, but not all, use noradrenaline as a post ganglionic neurotransmitter. (19 Jan 1998) |
| system, sympathetic nervous | A part of nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. The sympathetic nervous system together with the parasympathetic nervous system (that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles) constitute the autonomic nervous system. (12 Dec 1998) |
| involuntary nervous system | <anatomy> Neurons that are not under conscious control, comprising two antagonistic components, the sympathetic and parasympathetic nervous systems. The autonomic nervous system regulates key functions including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: 1. The sympathetic nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. 2. The parasympathetic nervous system slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. (03 Jul 1999) |
| enteric nervous system | Two ganglionated neural plexuses in the gut wall which form one of the three major divisions of the autonomic nervous system. The enteric nervous system innervates the gastrointestinal tract, the pancreas, and the gallbladder. It contains sensory neurons, interneurons, and motor neurons. Thus the circuitry can autonomously sense the tension and the chemical environment in the gut and regulate blood vessel tone, motility, secretions, and fluid transport. The system is itself governed by the central nervous system and receives both parasympathetic and sympathetic innervation. (12 Dec 1998) |