Class 3 Deck 1 Flashcards
Cranial nerve 1
-Olfactory (sense of smell)
Cranial nerve 2
-Optic nerve
The 2 optic nerves join to form what?
-Optic chiasm
Cranial nerve 3 is called what? and causes the eye to do what?
- Ocular motor
- Eye to Adduct
What 4 eye muscles does cranial nerve 3 innervate?
- Medial rectus
- Superior rectus
- Levator palpebrae
- Inferior oblique
Cranial nerve 4 is called what? and causes the eye to do what? and innervates what muscle?
- Trochlear
- Eye movement down
- Superior oblique
What is cranial nerve 5? and what does it do?
- Trigeminal
- Sensory impulses from the face
What cranial nerve is responsible for chewing?
- Cranial nerve 5 (trigeminal)
Cranial nerve 6 is called what? What does it do? What muscle does it innervate?
- Abducens
- Abducts the eye
- Lateral rectus muscle
What does the medial rectus muscle do? lateral rectus muscle?
- Adducts the eye
- Abducts the eye
Cranial nerve 7 is called what? What does it do?
- Facial nerve
- Facial muscles and Taste
What are the 5 muscles of the facial nerves (hand on face)?
- Temporal
- Zygomatic
- Buccal
- Mandibular
- Cevical
What is cranial nerve 8 called? and what are the 2 divisions?
- Acoustic
- Vestibular and cochlear
In cranial nerve 8 (acoustic) what doe the vestibular nerve do? Cochlear?
- Balance
- Hearing
Cranial nerve 9 is what? and does what 2 things does it do?
- Glossopharyngeal
- Sensory to external ear and posterior tongue
- Motor to pharynx for swallowing and parotid gland for secreting saliva
What is cranial nerve 10 called? and what does it do?
- Vagus nerve
- Sensory innervation to many organs throughout the thorax and abdomen
- Motor to the abdominal viscera and swallowing muscles of pharynx and larynx
- Parasympathetic innervation of organs
What is cranial nerve 11? and what does it do?
- Accessory
- Shoulder and head movements
What is cranial nerve 12? and what does it do?
- Hypoglossal
- Innervates tongue muscles
What is the autonomic nervous sytsem?
-Autonomic regulation to: Smooth muscle, cardiac muscle, glands, adipose tissue
What is the autonomic nervous system effector targets?
- Smooth muscle
- Cardiac muscle
- Glands
- Adipose tissue