Overview of the Eye Structures

The cornea is located behind the pupil.

The lens is a transparent structure that provides fixed refraction to focus light onto the retina.

The iris is composed of contractile skeletal muscle to control the size of the pupil.

The sphincter pupillae receives sympathetic innervation.

The iris contains pigment cells responsible for characteristic eye color.

Contraction of the sphincter pupillae causes the pupil to dilate.

The ciliary muscle is under the control of the somatic nervous system.

Acetylcholine released from postganglionic neurons causes relaxation of the radial muscle group.

Contraction of the ______ pupillae causes the pupil to dilate.

The ______ pupillae receives sympathetic innervation.

The ______ muscle is under the control of the somatic nervous system.

The ______ is a transparent structure that provides fixed refraction to focus light onto the retina.

The ______ is located behind the pupil.

The ______ is composed of contractile skeletal muscle to control the size of the pupil.

Acetylcholine released from ______ neurons causes relaxation of the radial muscle group.

The ciliary muscle is under the control of the ______ nervous system.

The cornea is located ______ the pupil.

The lens is a transparent structure that provides fixed refraction to focus light onto the ______.

Contraction of the sphincter pupillae causes the pupil to ______.

The ______ system is used to measure doses in the apothecaries' system.

The conversion from apothecaries' system to ______ system is provided in Table 1.

To convert 9 fluid ounces to milliliters, the ______ unit is used.

The conversion from 500 ______ to grams is required in one of the questions.

The ______ system is used to measure body weight in one of the conversions.

The conversion from milliliters to ______ ounces is required in one of the questions.