locus caeruleusn.

Brit.

/ˌləʊkəs sᵻˈruːlɪəs/,

/ˌlɒkəs sᵻˈruːlɪəs/, U.S.

/ˌloʊkəs səˈruliəs/

Inflections: Plural loci caerulei.

Forms: 1800s– locus caeruleus, 1800s– locus coeruleus, 1900s– locus ceruleus.

Origin: A borrowing from Latin. Etymon: Latin locus caeruleus.

Etymology: < scientific Latin locus caeruleus ( J. Wenzel & C. Wenzel De penitiori structura cerebri (1812) 341; also caeruleus locus (xvii. 168, in the same source)) < classical Latin locus locus n.¹ + caeruleus (see ceruleous adj.).

Anatomy.

A small bluish-grey area within the brain, located on either side of the rostral end of the floor of the fourth ventricle, made up of pigmented nerve cell bodies having noradrenergic axons distributed to many parts of the central nervous system, and considered to be part of the reticular formation.

ΚΠ

1852 G. V. Ellis Demonstr. Anat. (ed. 3) 237 At the top of the anterior fossa is a collection of very dark ‘gray substance’ which has a bluish appearance.., and is named locus cæruleus.

1889 Jrnl. Physiol. 10 185 The nerve cells of the locus cœruleus, although strongly pigmented, are probably not entirely devoid of function.

1919 New York Med. Jrnl. 1 Feb. 199/2 In the locus niger and locus cœruleus there had occurred a process of cytolysis which set free melanic pigment.

1979 H. L. Meltzer Chem. Human Behav. i. 3 There are, in fact, two loci caerulei, located in each half of the brain.

2006 Economist 3 June 91/1 He believes that the electrical stimulation causes a region in the brain stem called the locus caeruleus..to flood the brain with norepinephrine, a neurotransmitter implicated in alertness, concentration, and motivation.

This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).

单词	locus caeruleus
释义	locus caeruleusn. Brit. /ˌləʊkəs sᵻˈruːlɪəs/, /ˌlɒkəs sᵻˈruːlɪəs/, U.S. /ˌloʊkəs səˈruliəs/ Inflections: Plural loci caerulei. Forms: 1800s– locus caeruleus, 1800s– locus coeruleus, 1900s– locus ceruleus. Origin: A borrowing from Latin. Etymon: Latin locus caeruleus. Etymology: < scientific Latin locus caeruleus ( J. Wenzel & C. Wenzel De penitiori structura cerebri (1812) 341; also caeruleus locus (xvii. 168, in the same source)) < classical Latin locus locus n.¹ + caeruleus (see ceruleous adj.). Anatomy. A small bluish-grey area within the brain, located on either side of the rostral end of the floor of the fourth ventricle, made up of pigmented nerve cell bodies having noradrenergic axons distributed to many parts of the central nervous system, and considered to be part of the reticular formation. ΚΠ 1852 G. V. Ellis Demonstr. Anat. (ed. 3) 237 At the top of the anterior fossa is a collection of very dark ‘gray substance’ which has a bluish appearance.., and is named locus cæruleus. 1889 Jrnl. Physiol. 10 185 The nerve cells of the locus cœruleus, although strongly pigmented, are probably not entirely devoid of function. 1919 New York Med. Jrnl. 1 Feb. 199/2 In the locus niger and locus cœruleus there had occurred a process of cytolysis which set free melanic pigment. 1979 H. L. Meltzer Chem. Human Behav. i. 3 There are, in fact, two loci caerulei, located in each half of the brain. 2006 Economist 3 June 91/1 He believes that the electrical stimulation causes a region in the brain stem called the locus caeruleus..to flood the brain with norepinephrine, a neurotransmitter implicated in alertness, concentration, and motivation. This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022). < n.1852
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