arrector
(redirected from arrectores)arrector
[ah-rek´tor] (pl. arrecto´res) (L.)raising, or that which raises; an erector muscle.
e·rec·tor
(ē-rek'tŏr),1. One who or that which raises or makes erect.
2. Denoting specifically certain muscles having such action.
Synonym(s): arrector
[Mod. L.]
arrector
/ar·rec·tor/ (ah-rek´tor) pl. arrecto´res [L.] raising, or that which raises; an arrector muscle.e·rec·tor
(ĕ-rek'tŏr)1. One who or that which raises or makes erect.
2. Denoting specifically certain muscles having such action.
Synonym(s): arrector.
Synonym(s): arrector.
[Mod. L.]
erector
a muscle that holds up a part, such as the spinal muscles contraction of which assist in the maintenance of upright posturearrector
pl. arrectores [L.] raising, or that which raises; an erector muscle.
arrector pili muscle
smooth muscle that extends from the papillary zone of the dermis to the base of a hair follicle. Involuntary contraction causes hair erection which, in some species, is most noticeable on the neck and along the back (see hackles).