The pupil constricts or dilates depending on how much light is available. The pupil's function is controlled by our autonomic nervous system.
iris
The part of the microscope is called the Condenser
The Lens. The Iris controls the amount of Light reaching the Retina.
The colored portion that regulates the amount of light in eye is called as iris. The hole through which light passes inside the posterior chamber is called as is called as pupil. The color of the iris changes as per color of the skin pigment. It has got circular muscles and radial muscles in it. In fight or flight responce, it is dilated through sympathetic nerve stimulation. In relaxed and stress free envirinment pupil is constricted via parasympathetic nerve stimulation.
the iris
emphasis
the diaphragm controls the amount of light entering the microscope
Diaphragm control lever
The iris!
The pupil contracts or expands (dilates) to regulate the entry of light to the retina in the eye.The iris or colored part of the eye is what controls the diameter of the pupil by covering or uncovering it.
The part of the microscope is called the Condenser
The Lens. The Iris controls the amount of Light reaching the Retina.
That part is called as iris. That makes your eyes so beautiful.
Contractile Vacuoles
Contractile Vacuoles
The aperture of the lens The shutter speed The ISO setting-how sensitive you want the camera sensor to be
The colored portion that regulates the amount of light in eye is called as iris. The hole through which light passes inside the posterior chamber is called as is called as pupil. The color of the iris changes as per color of the skin pigment. It has got circular muscles and radial muscles in it. In fight or flight responce, it is dilated through sympathetic nerve stimulation. In relaxed and stress free envirinment pupil is constricted via parasympathetic nerve stimulation.
the iris