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Questions and Answers
What is the role of the iris in the eye?
What is the role of the iris in the eye?
- To contain pigment cells that give the eye its color
- To provide adjustable refraction to focus light
- To control the size of the pupil (correct)
- To transmit light from the cornea to the lens
What is the primary function of the pupil?
What is the primary function of the pupil?
- To allow light to enter and stimulate the retina (correct)
- To provide a fixed refraction to focus light
- To control the size of the iris
- To control the color of the eye
What is the innervation of the sphincter pupillae muscle?
What is the innervation of the sphincter pupillae muscle?
- Parasympathetic nervous system (correct)
- Both sympathetic and parasympathetic nervous systems
- Sympathetic nervous system
- Neither the sympathetic nor parasympathetic nervous systems
Which muscle group in the iris is responsible for pupil dilation (mydriasis)?
Which muscle group in the iris is responsible for pupil dilation (mydriasis)?
Which structure in the eye provides adjustable refraction to focus light onto the retina?
Which structure in the eye provides adjustable refraction to focus light onto the retina?
What is the function of the cornea in the eye?
What is the function of the cornea in the eye?
What is the innervation of the dilator pupillae muscle group in the iris?
What is the innervation of the dilator pupillae muscle group in the iris?
Which of the following is the primary function of the pupil?
Which of the following is the primary function of the pupil?
What is the primary function of the lens in the eye?
What is the primary function of the lens in the eye?
Which muscle group in the iris is responsible for pupil constriction (miosis)?
Which muscle group in the iris is responsible for pupil constriction (miosis)?
What is the innervation of the sphincter pupillae muscle group in the iris?
What is the innervation of the sphincter pupillae muscle group in the iris?
Which structure in the eye provides fixed refraction to focus light onto the retina?
Which structure in the eye provides fixed refraction to focus light onto the retina?
What is the function of the iris in the eye?
What is the function of the iris in the eye?
Which structure in the eye provides adjustable refraction to focus light onto the retina?
Which structure in the eye provides adjustable refraction to focus light onto the retina?
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