Ciliary muscles are contractile structures which

  • A
    Cause standing of hairs in human skin in cold
  • B
    Keep the valves of heart in position
  • C
    Move cilia of some ciliated protozoans
  • D
    Change focus of lens in human eye

Explore More

Similar Questions

The eye lens is held in place by:

The following figure is a diagram showing parts of the human eye. Identify $P, Q$,and $R$ from the options given below.
$\quad\quad P\quad\quad\quad Q\quad\quad\quad R$

In the chemistry of vision in mammals,the photosensitive substance is called

Suppose a person wears convex glasses for proper vision. Where do you think the image of the object is formed in his eyes when he is not using the glasses?

The friction between the eyelids and the cornea is avoided by the secretion of

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo