6 Questions
What is the main function of the optic canal?
To provide protection to the optic nerve and ophthalmic artery
Which of the following structures pass through the optic canal?
Optic nerve and ophthalmic artery
What is the connection provided by the optic canal?
Between the orbit and the cranial cavity
What is the optic canal?
An important anatomical structure
Why is the optic canal important?
Because it provides protection to vital structures
What is the relationship between the optic canal and the cranial cavity?
The optic canal is connected to the cranial cavity
Study Notes
Nerves of the Orbit
- The orbit receives nerve supply from various cranial nerves, including:
- Cranial Nerve II (Optic Nerve)
- Cranial Nerve III (Oculomotor Nerve)
- Cranial Nerve IV (Trochlear Nerve)
- Cranial Nerve VI (Abducens Nerve)
Oculomotor Nerve (Cranial Nerve III)
- Innervates several muscles within the orbit, controlling:
- Eye movements
- Positioning
- Supplies muscles such as:
- Superior rectus
- Inferior rectus
- Medial rectus
- Inferior oblique
- Contributes to:
- Vertical eye movements
- Horizontal eye movements
- Rotational eye movements
- Provides structural support and helps maintain the integrity of these vital structures
Optic Canal
- An important anatomical structure through which:
- The optic nerve passes
- The ophthalmic artery passes
- Connects the orbit to the cranial cavity
- Provides protection to these vital structures
This quiz covers the anatomy of the eye, focusing on the nerves of the orbit and the types of optic canal, as discussed in the 5th lecture of the 1st stage of the 2024-2023 course.
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