Ophthalmic nerve

This tutorial covers the ophthalmic nerve, a branch of the trigeminal nerve, focusing on its anatomy, branches, and associated structures. It begins with an overview of the trigeminal nerve and its ganglion, then delves into the ophthalmic nerve's branches: the frontal, lacrimal, and nasal ciliary nerves. Each branch's function and pathway are detailed, along with their sensory roles. The tutorial also highlights surrounding structures like the optic nerve and internal carotid artery, and discusses clinical aspects such as the corneal reflex. The session concludes with a summary of key points.

What is the trigeminal nerve also known as?

• CNXII

• CNVII

• CNIII

• CNV

Which part of the face does the ophthalmic nerve provide sensation to?

• Upper third

• Middle third

• Entire face

• Lower third

What are the two branches of the frontal nerve?

• Supraorbital and supratrochlear nerves

• Infraorbital and infratrochlear nerves

• Maxillary and mandibular nerves

• Optic and olfactory nerves

Which branch of the ophthalmic nerve is the smallest?

• Lacrimal nerve

• Frontal nerve

• Nasal ciliary nerve

• Maxillary nerve

Which nerve is considered the continuation of the nasal ciliary nerve?

• Optic nerve

• Lacrimal nerve

• Infra trochlear nerve

• Supraorbital nerve

What is the function of the long ciliary nerves?

• Carry auditory signals to the brain

• Carry motor fibers to the tongue

• Carry sensory information from the cornea

• Carry visual signals to the brain

What is the role of the optic nerve?

• Carries gustatory information

• Carries auditory information

• Carries visual information

• Carries olfactory information

Which structure is located medial to the ophthalmic nerve?

• Optic nerve

• Internal carotid artery

• Maxillary nerve

• Facial nerve

What is the clinical significance of the corneal reflex?

• Indicates auditory nerve function

• Indicates facial nerve function

• Indicates optic nerve function

• Indicates olfactory nerve function

What is the result of damage to the ophthalmic nerve?

• Loss of hearing

• Loss of sensation in the upper third of the face

• Loss of motor function in the lower face

• Loss of vision