tonusn.

Brit.

/ˈtəʊnəs/, U.S.

/ˈtoʊnəs/

Etymology: < Latin tonus, < Greek τόνος tone n.

Physiology and Pathology.

1. The condition or state of muscular tone; the proper elasticity of the organs; tonicity.

ΘΚΠ

the world > life > the body > structural parts > muscle > [noun] > muscular tension

contraction1615

tonicity1824

myonicity1866

tonus1876

inotropism1902

ionotropy1976

stiffness1978

1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 162 In a reflex manner the arterial tonus is reduced or increased.

1882 J. S. Burdon-Sanderson in Lancet 29 Apr. 678 The paralysed artery recovers, and sometimes over-recovers its normal state of contraction, or, as we call it, its tonus. Tonus..is one of the independent endowments of arteries.

1899 T. C. Allbutt et al. Syst. Med. VII. 109 Whence comes this loss of tonus?

2. A tonic spasm.

ΘΚΠ

the world > health and disease > ill health > a disease > diseases of tissue > disorders affecting muscles > [noun] > spasm or cramp

cramp1374

emprosthotonosa1398

spasmc1400

spasmusc1400

crickc1424

crumpa1500

misspringinga1500

spasma?1541

convulsion1585

catch1830

kink1848

tonus1891

1891 in Cent. Dict.

1899 T. C. Allbutt et al. Syst. Med. VII. 890 The clonic spasm may..pass into slight tonus of very short duration.

1899 New Sydenham Soc. Lexicon Tonus, tonic spasm.

3. (See quot. 1902.)

ΘΚΠ

the world > life > biology > biological processes > action of nervous system > [noun]

innervation1832

nervism1837

nerve force1850

nervation1851

neurility1860

neuricity1866

neurism1873

tonus1902

gamone1942

1902 Encycl. Brit. XXXI. 740/1 A continuous lesser ‘change’ or stream of changes sets through the neuron, and is distributed by it to other neurons in the same direction and by the same synapses as are its nerve impulses. This gentle continuous activity of the neuron is called its tonus.

Compounds

tonus-producing adj.

ΚΠ

1897 T. C. Allbutt et al. Syst. Med. III. 317 Any failure of the circulation dependent upon the absence from the blood~stream of this tonus-producing substance.

This entry has not yet been fully updated (first published 1913; most recently modified version published online March 2022).

单词	tonus
释义	tonusn. Brit. /ˈtəʊnəs/, U.S. /ˈtoʊnəs/ Etymology: < Latin tonus, < Greek τόνος tone n. Physiology and Pathology. 1. The condition or state of muscular tone; the proper elasticity of the organs; tonicity. ΘΚΠ the world > life > the body > structural parts > muscle > [noun] > muscular tension contraction1615 tonicity1824 myonicity1866 tonus1876 inotropism1902 ionotropy1976 stiffness1978 1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 162 In a reflex manner the arterial tonus is reduced or increased. 1882 J. S. Burdon-Sanderson in Lancet 29 Apr. 678 The paralysed artery recovers, and sometimes over-recovers its normal state of contraction, or, as we call it, its tonus. Tonus..is one of the independent endowments of arteries. 1899 T. C. Allbutt et al. Syst. Med. VII. 109 Whence comes this loss of tonus? 2. A tonic spasm. ΘΚΠ the world > health and disease > ill health > a disease > diseases of tissue > disorders affecting muscles > [noun] > spasm or cramp cramp1374 emprosthotonosa1398 spasmc1400 spasmusc1400 crickc1424 crumpa1500 misspringinga1500 spasma?1541 convulsion1585 catch1830 kink1848 tonus1891 1891 in Cent. Dict. 1899 T. C. Allbutt et al. Syst. Med. VII. 890 The clonic spasm may..pass into slight tonus of very short duration. 1899 New Sydenham Soc. Lexicon Tonus, tonic spasm. 3. (See quot. 1902.) ΘΚΠ the world > life > biology > biological processes > action of nervous system > [noun] innervation1832 nervism1837 nerve force1850 nervation1851 neurility1860 neuricity1866 neurism1873 tonus1902 gamone1942 1902 Encycl. Brit. XXXI. 740/1 A continuous lesser ‘change’ or stream of changes sets through the neuron, and is distributed by it to other neurons in the same direction and by the same synapses as are its nerve impulses. This gentle continuous activity of the neuron is called its tonus. Compounds tonus-producing adj. ΚΠ 1897 T. C. Allbutt et al. Syst. Med. III. 317 Any failure of the circulation dependent upon the absence from the blood~stream of this tonus-producing substance. This entry has not yet been fully updated (first published 1913; most recently modified version published online March 2022). < n.1876
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