Fascial spaces and spread of infection

Question 1

1. Which fascial space lies between the buccinator muscle and the oral mucosa?
   a) Sublingual space
   b) Vestibular space
   c) Retropharyngeal space
   d) Buccal space

Answer 1

B

Question 2

2. The fascial layer that encloses both the buccinator and pharyngeal constrictor muscles is the:
   a) Prevertebral fascia
   b) Carotid sheath
   c) Buccopharyngeal fascia
   d) Investing fascia

Answer 2

C

Question 3

3. Which space contains the inferior alveolar neurovascular bundle?
   a) Pterygomandibular space
   b) Masticator space
   c) Submandibular space
   d) Buccal space

Answer 3

A

Question 4

4. The submandibular space lies:
   a) Between oral mucosa and mylohyoid
   b) Inferior to the mylohyoid line
   c) Behind the pharynx
   d) Within the infratemporal fossa

Answer 4

B

Question 5

5. Which space is at risk of causing internal jugular vein thrombosis if infected?
   a) Sublingual space
   b) Buccal space
   c) Retropharyngeal space
   d) Lateral pharyngeal space

Answer 5

B

Question 6

7. The retropharyngeal space is located between:
   a) Buccopharyngeal and prevertebral fascia
   b) Superficial and investing fascia
   c) Mylohyoid and mucosa
   d) Temporalis and masseter

Answer 6

A

Question 7

6. Ludwig’s angina usually originates from infection of:
   a) Maxillary molars
   b) Maxillary canines
   c) Mandibular molars
   d) Buccal mucosa

Answer 7

C

Question 8

8. Infection from the mandibular teeth most commonly spreads into which space first?
   a) Retropharyngeal
   b) Sublingual or submandibular
   c) Parapharyngeal
   d) Temporal

Answer 8

B

Question 9

9. The buccal space lies:
   a) Deep to the buccinator
   b) Superficial to the buccinator
   c) Inferior to mylohyoid
   d) Between masseter and pterygoid

Answer 9

B

Question 10

10. Which of the following is NOT a content of the buccal space?
    a) Facial nerve trunk
    b) Buccal fat pad
    c) Parotid duct
    d) Transverse facial artery

Answer 10

A

Question 11

11. The masticator space contains all of the following except:
    a) Temporalis
    b) Masseter
    c) Superior constrictor
    d) Lateral pterygoid

Answer 11

C

Question 12

13. A retropharyngeal abscess can lead to:
    a) Mediastinitis
    b) Epiglottitis
    c) Otitis media
    d) Parotitis

Answer 12

A

Question 13

14. Which fascial space communicates with both buccal and retropharyngeal spaces?
    a) Infratemporal space
    b) Submandibular space
    c) Lateral pharyngeal space
    d) Temporal space

Answer 13

C

Question 14

15. The sublingual space lies:
    a) Above the mylohyoid and beneath the mucosa
    b) Below the mandible
    c) Posterior to the pharynx
    d) Superior to the mylohyoid muscle

Answer 14

D

Question 15

16. Infection in which space may cause visible swelling in the cheek?
    a) Vestibular space
    b) Buccal space
    c) Retropharyngeal space
    d) Submandibular space

Answer 15

B

Question 16

17. The fascial space most at risk during posterior spread of dental infection is the:
    a) Pterygopalatine space
    b) Vestibular space
    c) Retropharyngeal space
    d) Parotid space

Answer 16

C

Question 17

18. The infratemporal fossa is located:
    a) Posterior to the maxilla
    b) Between the carotid sheath and the sternum
    c) Below the orbit and behind the zygomatic arch
    d) Between the SCM and pharynx

Answer 17

A

Question 18

19. Which of these spaces directly communicates with both submandibular and sublingual spaces?
    a) Masticator space
    b) Pterygomandibular space
    c) Retropharyngeal space
    d) Temporal space

Answer 18

A

Question 19

19. Which of these spaces directly communicates with both submandibular and sublingual spaces?
    a) Masticator space
    b) Pterygomandibular space
    c) Retropharyngeal space
    d) Temporal space

Answer 19

A

Question 20

20. What is the most dangerous complication of Ludwig’s angina?
    a) Lymphadenopathy
    b) Sinusitis
    c) Retropharyngeal abscess
    d) Airway obstruction

Answer 20

D

Question 21

1. Which space lies between the buccinator muscle and the oral mucosa?
   A. Retropharyngeal space
   B. Buccal space
   C. Vestibular space
   D. Pterygomandibular space

Answer 21

C. Vestibular space

Question 22

2. Which of the following structures is found in the buccal space?
   A. Internal carotid artery
   B. Buccal fat pad
   C. Submandibular gland
   D. Temporalis muscle

Answer 22

B. Buccal fat pad

Question 23

3. The lateral pharyngeal space is continuous with all of the following spaces except:
   A. Retromandibular space
   B. Buccal space
   C. Pterygomandibular space
   D. Vestibular space

Answer 23

D. Vestibular space

Question 24

4. What is a potential complication of infection in the retropharyngeal space?
   A. Trismus
   B. Ludwig’s angina
   C. Mediastinitis
   D. Subcutaneous emphysema

Answer 24

C. Mediastinitis

Question 25

5. The submandibular space lies: A. Above the mylohyoid muscle B. Below the mylohyoid line C. Anterior to the masseter D. Within the orbit

Answer 25

B. Below the mylohyoid line

Question 26

6. Ludwig’s angina is most commonly caused by: A. Maxillary sinus infection B. Mandibular molar dental infection C. Buccal space trauma D. Parotid gland swelling

Answer 26

B. Mandibular molar dental infection

Question 27

7. Which of the following muscles is enclosed in the masticator space? A. Buccinator B. Masseter C. Superior constrictor D. Platysma

Answer 27

B. Masseter

Question 28

8. The retropharyngeal space is located between which two fascial layers? A. Buccopharyngeal and prevertebral fascia B. Carotid and pretracheal fascia C. Investing and muscular fascia D. Pretracheal and alar fascia

Answer 28

A. Buccopharyngeal and prevertebral fascia

Question 29

9. Which space contains the inferior alveolar neurovascular bundle? A. Sublingual space B. Retropharyngeal space C. Pterygomandibular space D. Temporal space

Answer 29

C. Pterygomandibular space

Question 30

10. What is the mortality rate of Ludwig’s angina? A. 1-2% B. 4-5% C. 8-10% D. 15-20%

Answer 30

C. 8-10%

Question 31

11. Which fascial space allows infection to spread directly into the mediastinum? A. Sublingual space B. Retropharyngeal space C. Pterygomandibular space D. Buccal space

Answer 31

B

Question 32

12. The infratemporal fossa communicates superiorly with which space? A. Temporal space B. Parotid space C. Retropharyngeal space D. Orbit

Answer 32

A

Question 33

13. The fascia that covers the buccinator muscle is called: A. Prevertebral fascia B. Investing fascia C. Buccopharyngeal fascia D. Alar fascia

Answer 33

c

Question 34

14. Infection in which space may cause airway obstruction due to swelling in the floor of the mouth? A. Lateral pharyngeal space B. Vestibular space C. Sublingual space D. Buccal space

Answer 34

C

Question 35

15. The masticator space encloses all of the following muscles except: A. Masseter B. Temporalis C. Lateral pterygoid D. Buccinator

Answer 35

D

Question 36

16. Which space is located medial to the ramus of the mandible and lateral to the lateral pterygoid plate? A. Retropharyngeal space B. Temporal space C. Infratemporal fossa D. Submandibular space

Answer 36

C

Question 37

17. The sublingual space communicates with the submandibular space due to: A. A common arterial supply B. Incomplete separation by mylohyoid C. Parotid duct crossing both spaces D. Shared lymphatic drainage

Answer 37

B

Question 38

18. A retropharyngeal abscess may spread posteriorly and cause: A. Trismus B. Buccal swelling C. Vertebral erosion and spinal cord damage D. Parotitis

Answer 38

c

Question 39

19. Which condition involves life-threatening bacterial cellulitis of the submandibular and sublingual spaces? A. Cavernous sinus thrombosis B. Ludwig’s angina C. Peritonsillar abscess D. Parotiditis

Answer 39

B

Question 40

20. Which fascial space lies anterior to the carotid sheath and lateral to the pharynx? A. Vestibular space B. Retropharyngeal space C. Buccal space D. Lateral pharyngeal space Answer: D. Lateral pharyngeal space

Answer 40

D