Nerves

Question 1

What are the two parts of the autonomic nervous system?

Answer 1

Sympathetic and Parasympatheic

Question 2

What are some actions of the sympathetic nervous system?

Answer 2

Fight or flight: innervates organs causing general increase in heart rate, respiration, decrease in salivary flow. Also shuts down to stomach and extremities (cold and clammy - pupils dilate)

Question 3

What does the term Reflex Arc mean?

Answer 3

Short cut for messages to the brain. Sensory input to spinal cord and motor response out.

Question 4

What is the difference between response to sensory and motor neurons?

Answer 4

Sensory = feel pain, touch, proprioception
Motor = response to the pain, voluntary control of muscles

Question 5

Which nervous system are the cranial nerves a part of?

Answer 5

PNS

Question 6

Stimulation to which nervous system will cause an increase in salivary flow?

Answer 6

Parasympathetic

Question 7

Stimulation to which nervous system will cause a decrease in salivary flow?

Answer 7

Sympathetic

Question 8

What is the name of cranial nerve V? What is the name of its ganglion?

Answer 8

Trigeminal nerve

- trigeminal ganglion / semilunar or gasserion

Question 9

What are the 3 divisions of the V cranial nerve?

Answer 9

V1 – Opthalmic
V2- Maxillary
V3- Mandibular

Question 10

Through what structure do the following fibers exit the skull?

Answer 10

V1 – Superior orbital fissure
V2 – F. Rotundum
V3 – F. Ovale

Question 11

Is V1 motor or sensory?
Is V2 motor or sensory?
Is V3 motor or sensory?

Answer 11

Sensory
Sensory
Both Motor and Sensory

Question 12

Which division of V innervates the muscles of mastication?

Answer 12

V3 - mandibular

Question 13

Which nerve supplies innervation to the muscles of facial expression?

Answer 13

VII - facial

Question 14

Which cranial nerve supplies the submandibular and sublingual gland?

Answer 14

VII - chorda tympani

Question 15

Which cranial nerve supplies the parotid gland?

Answer 15

IX- glossopharyngeal

Question 16

The lingual nerve is joined by a branch of the seventh cranial nerve (facial nerve) called what?
What does this branch supply?

Answer 16

Called the chorda tympani
Supplies afferent - taste to/from anterior 2/3 of tongue
Sympathetic & parasympathetic - efferent to submand and sublingual salivary glands

Question 17

Which nerve carries fibers to the minor salivary glands on the soft palate?

Answer 17

VII- greater petrosal (of facial) secretory (ANS)

Question 18

What soft tissues of the head and neck are supplied by the branches of the glossopharyngeal nerve?

Answer 18

IX - posterior 1/3 of tongue (taste, and few taste buds of the pharynx area)
Parasympathetic secretory to parotid gland
Motor - pharyngeal area and muscles
Sensory - pharynx and posterior 1/3 of tongue

Question 19

What 3 cranial nerves make up the Pharyngeal plexus?

Answer 19

IX- glossopharyngeal
X- vagus
XI- accessory

Question 20

What is the name, function, foramen/pathway of cranial nerve I, and is it sensory or motor?

Answer 20

Olfactory
Smell
Cribiform plate
Sensory

Question 21

What is the name, function, foramen/pathway of cranial nerve II, and is it sensory or motor?

Answer 21

Optic
Sight
Optic Canal
Sensory

Question 22

What is the name, function, foramen/pathway of cranial nerve III, and is it sensory or motor?

Answer 22

Oculomotor
Eye Muscles
Superior orbital fissure
Motor

Question 23

What is the name, function, foramen/pathway of cranial nerve IV, and is it sensory or motor?

Answer 23

Trochlear
Eye Muscles
Superior Orbital fissures
Motor

Question 24

What is the name, function, foramen/pathway of cranial nerve V, and is it sensory or motor?

Answer 24

Trigeminal
Both sensory and motor
sensory: Teeth, skin of face, head
Motor: Muscles of mastication

Question 25

What is the name, function, foramen/pathway of cranial nerve VI, and is it sensory or motor?

Answer 25

Abducens Eye muscles Superior orbital fissure Motor

Question 26

What is the name, function, foramen/pathway of cranial nerve VII, and is it sensory or motor?

Answer 26

Facial Both sensory and motor Stylomastoid Sensory: posterior to ear, taste anterior 2/3 of tongue Motor: muscles of facial expression ANS: Salivary and lacrimal glands

Question 27

What is the name, function, foramen/pathway of cranial nerve VIII, and is it sensory or motor?

Answer 27

Vestibulocochlear (also auditory) Hearing and balance Internal Acoustic Meatus Sensory

Question 28

What is the name, function, foramen/pathway of cranial nerve IX, and is it sensory or motor?

Answer 28

Glossopharyngeal Both sensory and motor Sensory: posterior 1/3 of tongue - taste, pain Motor: muscles of s.palate, pharynx, ANS-secretion of s. glands Jugular foramen

Question 29

What is the name, function, foramen/pathway of cranial nerve X, and is it sensory or motor?

Answer 29

Vagus Both sensory and motor Sensory: skin around ear, taste: posterior of tongue. Motor: pharynx, larynx, soft palate (ANS: salivary glands) Jugular foramen

Question 30

What is the name, function, foramen/pathway of cranial nerve XI, and is it sensory or motor?

Answer 30

Accessory Trapezius and SCM muscles Motor Jugular Foramen

Question 31

What is the name, function, foramen/pathway of cranial nerve XII, and is it sensory or motor?

Answer 31

Hypoglossal Muscles of tongue Hypoglossal canal Motor

Question 32

What is the way to remember the names of the cranial nerves?

Answer 32

ON OLD OLYMPUS TOWERING TOPS A FINN 'VEE' GERMAN VIEWED A HOP

Question 33

What is the way to remember if the nerves are sensory or motor?

Answer 33

SOME SAY MARRY MONEY BUT MOTHER BOLDY SAYS BAD BUSINESS MARRY MONEY