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14 Questions

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Overview of the Eye Structures

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Questions and Answers

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?

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?

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)?

Dilator pupillae Signup and view all the answers

Which structure in the eye provides adjustable refraction to focus light onto the retina?

Lens Signup and view all the answers

What is the function of the cornea in the eye?

To provide fixed refraction to focus light onto the retina Signup and view all the answers

What is the innervation of the dilator pupillae muscle group in the iris?

Sympathetic nervous system Signup and view all the answers

Which of the following is the primary function of the pupil?

To allow light to enter and stimulate the retina Signup and view all the answers

What is the primary function of the lens in the eye?

To provide adjustable refraction to focus light onto the retina Signup and view all the answers

Which muscle group in the iris is responsible for pupil constriction (miosis)?

Sphincter pupillae Signup and view all the answers

What is the innervation of the sphincter pupillae muscle group in the iris?

Parasympathetic nervous system Signup and view all the answers

Which structure in the eye provides fixed refraction to focus light onto the retina?

Cornea Signup and view all the answers

What is the function of the iris in the eye?

To control the size of the pupil Signup and view all the answers

Which structure in the eye provides adjustable refraction to focus light onto the retina?

Lens Signup and view all the answers

Overview of the Eye Structures

Choose a study mode

Podcast

Questions and Answers

What is the role of the iris in the eye?

What is the primary function of the pupil?

What is the innervation of the sphincter pupillae muscle?

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?

What is the function of the cornea in the eye?

What is the innervation of the dilator pupillae muscle group in the iris?

Which of the following is the primary function of the pupil?

What is the primary function of the lens in the eye?

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?

Which structure in the eye provides fixed refraction to focus light onto the retina?

What is the function of the iris in the eye?

Which structure in the eye provides adjustable refraction to focus light onto the retina?

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