The Eye and Nervous System Questions
The Eye
Item 1 refers to the following diagram of a longitudinal section through the human eye
1. At what point is vision not possible?
(A) I
(B) II
(C) III
(D) IV
Item 2 refers to the following diagrams (I and II) representing the iris in bright and dim light respectively.
2. What causes the appearance in I and II to be different?
(A) In bright and dim light the circular and radial muscles both contract.
(B) In bright and dim light both circular and radial muscles relax.
(C) In dim light the circular muscles relax and radial muscles contract, and in bright light radial muscles relax and circular muscles contract.
(D) In bright light the circular muscles relax and radial muscles contract, and in dimt light radial muscles relax and circular muscles contract.
Item 3 refers to the following information.
Three people labeled I to III, EACH have different eye defects(s) as stated below
I. Long eyeball
II Short eyeball, normal cornea and lens
III Normal eyeball, cataract
3. Which of the people can see distant objects without corrective lenses?
(A) I only
(B) II only
(C) I and II only
(D) II and III only
4. Which of the following types of lens will correct short sightedness?
(A)
(B)
(C)
(D)
5. Which of the following parts of the eye functions as a receptor?
(A) Iris
(B) Lens
(C) Retina
(D) Optic nerve
6. The eye is sometimes referred to as an effector organ because
(A) the pupil constricts in the presence of bright light
(B) the rods and cones are stimulated by light
(C) images which fall on the retina are sent to the brain
(D) neurons from the eye lead to the central nervous system
Item 7 refers to the following diagram of the eye.
7. Which of the labeled parts contains cells called rods and cones?
(A) I
(B) II
(C) III
(D) IV
8. Andrea leaves a brightly lit area and ventures into a dark closet. Which of the following changes occur in the eye?
(A) Radial muscles of the iris contract and pupils
Item 1 refers to the following diagram of a longitudinal section through the human eye
1. At what point is vision not possible?
(A) I
(B) II
(C) III
(D) IV
Item 2 refers to the following diagrams (I and II) representing the iris in bright and dim light respectively.
2. What causes the appearance in I and II to be different?
(A) In bright and dim light the circular and radial muscles both contract.
(B) In bright and dim light both circular and radial muscles relax.
(C) In dim light the circular muscles relax and radial muscles contract, and in bright light radial muscles relax and circular muscles contract.
(D) In bright light the circular muscles relax and radial muscles contract, and in dimt light radial muscles relax and circular muscles contract.
Item 3 refers to the following information.
Three people labeled I to III, EACH have different eye defects(s) as stated below
I. Long eyeball
II Short eyeball, normal cornea and lens
III Normal eyeball, cataract
3. Which of the people can see distant objects without corrective lenses?
(A) I only
(B) II only
(C) I and II only
(D) II and III only
4. Which of the following types of lens will correct short sightedness?
(A)
(B)
(C)
(D)
5. Which of the following parts of the eye functions as a receptor?
(A) Iris
(B) Lens
(C) Retina
(D) Optic nerve
6. The eye is sometimes referred to as an effector organ because
(A) the pupil constricts in the presence of bright light
(B) the rods and cones are stimulated by light
(C) images which fall on the retina are sent to the brain
(D) neurons from the eye lead to the central nervous system
Item 7 refers to the following diagram of the eye.
7. Which of the labeled parts contains cells called rods and cones?
(A) I
(B) II
(C) III
(D) IV
8. Andrea leaves a brightly lit area and ventures into a dark closet. Which of the following changes occur in the eye?
(A) Radial muscles of the iris contract and pupils