Question

Match List I with List II.

List I	List II
A. Superior rectus B. Medial rectus C. Superior oblique D. Inferior oblique	I. Move the eye ball horizontally II. Eye downward and towards the nose III. Move the eye ball vertically IV. Eye upward and away from the nose

Choose the correct answer from the options given below:

• A. A-III, B-I, C-II, D-IV
• B. A-I, B-III, C-II, D-IV
• C. A-III, B-II, C-I, D-IV
• D. A-II, B-I, C-III, D-IV

Hint:

Recti = straight movements (horizontal/vertical), Obliques = diagonal movements (up-down + in-out)

Answer 1

The Correct Option is A

Concept:
Extraocular muscles control eye movements in different planes. Each muscle has a primary, secondary, and tertiary action depending on eye position.

Step 1: Superior rectus.

• Primary action: Elevation (upward movement)
• Also contributes to vertical movement Thus: \[ A \rightarrow III \; (\text{Move eye vertically}) \]

Step 2: Medial rectus.

• Responsible for adduction
• Moves eyeball toward midline (horizontal movement) Thus: \[ B \rightarrow I \; (\text{Horizontal movement}) \]

Step 3: Superior oblique.

• Causes depression and intorsion
• Moves eye downward and inward (towards nose) Thus: \[ C \rightarrow II \]

Step 4: Inferior oblique.

• Elevates and abducts the eye
• Moves eye upward and outward (away from nose) Thus: \[ D \rightarrow IV \]

Step 5: Final mapping.
\[ A\!-\!III,\; B\!-\!I,\; C\!-\!II,\; D\!-\!IV \] \[ \boxed{\text{Correct answer = Option (1)}} \]