Cranial Nerves Flashcards
How many cranial nerves do we have?
12
The olfactory and optic nerves originate from?
The cerebrum
Where do cranial nerves 3 to 12 originate from?
The brain stem
Name the three components of the brain stem
midbrain, pons, and medulla oblongata.
What is an efferent nerve?
A nerve which transmits information from the PNS to the CNS
What is an afferent nerve?
A nerve which transmits information from the CNS to the PNS
What is the spinal level of the thoracolumber outflow?
T1–L2
Which system is the thoracolumber outflow part of?
Sympathetic nervous system
Name the 12 cranial nerves.
- olfactory nerve
- optic nerve
- oculomotor nerve
- trochlear nerve
- trigeminal nerve
- abducens nerve
- facial nerve
- vestibulocochlear nerve
- glossopharengeal nerve
- vagus nerve
- spinal accessory nerve
- hypoglossal nerve
Are the following cranial nerves motor, sensory or both?
- olfactory nerve
- optic nerve
- oculomotor nerve
- trochlear nerve
- trigeminal nerve
- abducens nerve
- facial nerve
- vestibulocochlear nerve
- glossopharengeal nerve
- vagus nerve
- spinal accessory nerve
- hypoglossal nerve
- olfactory nerve (sensory)
- optic nerve (sensory)
- oculomotor nerve (motor)
- trochlear nerve (motor)
- trigeminal nerve (Sensory and motor)
- abducens nerve (Motor)
- facial nerve (sensory and motor)
- vestibulocochlear nerve (Sensory)
- glossopharengeal nerve (Sensory and motor)
- vagus nerve (Sensory and motor)
- spinal accessory nerve (motor)
- hypoglossal nerve (motor)
- What is the name of the 1st cranial nerve?
- It originates from?
- Is it afferent or efferent
- It leaves the cranial via which foramen?
- Which bone is this part of?
- It transmits information relating to?
1. What is the name of the 1st cranial nerve? Olfactory 2. It originates from? Cerebrum 3.Is it afferent or efferent Afferent 4. It leaves the cranial via the? Cribriform plate 5. Which bone is this part of? Ehtmoid bone 6. It transmits information relating to? Smell
- What is the name of the 2nd cranial nerve?
- It originates from?
- Is it afferent or efferent
- It leaves the cranial via which foramen?
- Which bone is this part of?
- It transmits information relating to?
- Which gland can compress the optic chiasm?
1.What is the name of the 2nd cranial nerve? Optic 2. It arises from? The optic of the eye 3. Is it afferent or efferent? Afferent 4. It leaves the cranial via which foramen? Optic Canal 5. Which bone is this part of? Sphenoid bone 6. It transmits information relating to? Vision 7. Pituitary
- What is the name of the 3rd cranial nerve?
- It originates from?
- Is it afferent or efferent
- It leaves the cranial via which foramen?
- Which bone is this part of?
- What is the function of this nerve?
- What effect does the oculomotor nerve have on the pupil of the eye?
1.What is the name of the 3rd cranial nerve? Oculomotor 2. It originates from? Brain stem 3. Is it afferent or efferent Efferent 4. It leaves the cranial via which foramen? Superior orbital fissure 5. Which bone is this part of? Sphenoid Bone 6. What is the function of this nerve? Innervate the extrinsic muscles of the eye 7. Constricts the pupil
Which cranial nerves are responsible for controlling movement of the eye?
- Oculomotor nerve
- Trochlear
- Abducens
Which four nerves exit the superior orbital fissure
- Oculomotor nerve
- Trochlear
- Abducens
- Ophthalmic division of the trigeminal nerve
Which muscle elevates the upper eye lid?
Which nerve innervates this muscle?
Levator Palpebrae superioris
Oculomotor nerve