Sphenopalatine Ganglion

Question 1

Type

Answer 1

Parasympathetic

Question 2

Site

Answer 2

Pterygopalatine fossa suspended from maxillary nerve by 2 roots

Question 3

Roots

Answer 3

1. Sensory root
2. Sympathetic root
   3 parasympathetic root

Question 4

Sensory root

Answer 4

2 ganglionic fibers from maxillary nerve
Transverse ganglion without relay

Question 5

Sympathetic root

Answer 5

Deep petrosal nerve:
Sympathetic plexus around ICA
Transverse ganglion without relay

Question 6

Parasympathetic root

Answer 6

Greater superficial petrosal nerve:
From facial nerve in Petronius bone
Relays in ganglion

Question 7

Deep petrosal nerve and greater superficial petrosal nerve form?

Answer 7

Nerve of pterygoid canal (Vidian nerve)
Pass through pterygoid canal reaching ganglion

Question 8

Branches from sensory root (4)

Answer 8

1. Orbital
2. Pharyngeal
3. Palatine
4. Nasal

Question 9

Palatine nerve branches (2)

Answer 9

1. Greater palatine nerve
2. Lesser palatine nerves

Question 10

Nasal nerve branches (2)

Answer 10

1. Lateral nasal (short sphenopalatine) nerve
2. Medial nasal (long sphenopalatine) nerve

Question 11

Sympathetic root supply (4)

Answer 11

Blood vessels of:
1. Orbit
2. Pharynx
3. Palate
4. Nose

Question 12

Parasympathetic root supply (3)

Answer 12

Lacrimal glands and mucus glands of
1. Pharynx
2. Palate
3. Nose

Question 13

Orbital nerve course

Answer 13

Pass through inferior orbital fissure

Question 14

Orbital nerve supply (1)

Answer 14

Orbital periosteum

Question 15

Pharyngeal nerve supply (2)

Answer 15

1. Nasopharynx
2. Auditory (eustachian) tube

Question 16

Greater palatine nerve course

Answer 16

Passes through palatine greater canal and foramen to reach hard palate

Question 17

Greater palatine nerve supply (2)

Answer 17

1. Posterior part hard palate
2. Posteroinferior part of lateral wall nose

Question 18

Lesser palatine nerve course

Answer 18

Pass through greater palatine canal and lesser palatine foramina to reach soft palatine

Question 19

Lesser palatine nerve supply (2)

Answer 19

1. Soft palate
2. Palatine tonsils

Question 20

Lateral nasal nerve supply (1)

Answer 20

Posterisuperior part lateral wall nose

Question 21

Medial nasal nerve supply

Answer 21

1. Nasal septum posterior part
   Nasopalatine nerve passes through incisive canal to reach and supply anterior part of hard palate