Respuesta :
It is true that as the ciliary muscle relaxes, the suspensory ligaments tighten and stretch the lens, allowing for distance vision.
The triangular-shaped, elongated ciliary muscle is situated directly posterior to the limbus beneath the anterior sclera. The base of the iris inserts into the anterior-inward-facing side of the triangular section of the ciliary body, which is also its shortest side. From the posterior scleral spur, the ciliary muscle's extended, superficial, external surface curves along the anterior sclera's inner surface. The pars plicata region of the ciliary processes covers the apex of the ciliary muscle, which is directed inward in the eye toward the lens equator. The pars plana region covers the inner surface of the ciliary muscle, which runs from the apex posteriorly toward the posterior insertion of the ciliary muscle.
Three different orientations of muscle fibres make up the ciliary muscle. The muscle fibres that are most superficially located are just below the sclera. The moveable posterior insertion of these muscle fibres is linked posteriorly to the choroid at the ora serrata of the retina, whereas their fixed origin is at the scleral spur. The more radially orientated muscle fibres are found more anteriorly near the apex of the triangle area, deeper into the ciliary muscle. The circular muscle fibres are positioned much further down, at the tip of the triangle ciliary muscle. Subdivisions of the autonomic nervous system called sympathetic and parasympathetic provide dual and reciprocal innervation to the muscle fibres.
To learn more about ciliary muscle, refer:
https://brainly.com/question/800335
#SPJ4
