nexus

(redirected from nexuses)
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.

nexus

 [nek´sus]
1. a bond, as between members of a series or group.

gap junc·tion

1. an intercellular junction formerly considered to be a tight, membrane-to-membrane junction (macula occludens) but now shown to have a 2-nm gap between apposed cell membranes; the gap is not void but contains subunits in the form of polygonal lattices, which are the intercellular aspects of the two connexons that fit together, forming a channel between the cytoplasms of the two cells; it occurs in epithelia, between certain nerve cells, and in smooth and cardiac muscle; it is believed to mediate electrotonic coupling, which allows ionic currents to pass from one cell to another.
See also: synapse.
See also: connexons.
2. areas of increased electrochemical communication between myometrial cells that aid in the propagation of the contractions of labor.
See also: connexons.

nexus

/nex·us/ (nek´sus) pl. nex´us   [L.]
1. a bond, especially one between members of a series or group.

nexus

[nek′səs] pl. nexus
Etymology: L, bond
1 a bond, especially one between members of a series or group.
2 See gap junction.

gap junc·tion

(gap jŭngk'shŭn)
1. An intercellular junction having a 2-nm gap between apposed cell membranes; the gap contains subunits in the form of polygonal lattices; it occurs in epithelia, between certain nerve cells, and in smooth and cardiac muscle.
See also: synapse
2. Areas of increased electrochemical communication between myometrial cells that aid in the propagation of the contractions of labor.
Synonym(s): nexus.

nexus

1. a bond, as between members of a series or group.
2. a gap junction.