SEARCH:

BDS Second Year CNS, MSK and Special Senses OSPE and VIVA Questions - Anatomy - July 2015

1. Key: Spinal cord
a. Identify the displayed specimen. (2)
b. Draw a well-labeled diagram showing the blood supply of it. (5)
c. Name the branches of typical spinal nerve. (2)

2. Key: Medulla Oblongata
a. Identify the displayed specimen. (2)
b. Name the cranial nerve arising from it. (4)
c. Write about the formation of facial colliculus. (4)

3. Key: Fourth Ventricle
a. Identify the flagged cavity. (2)
b. Draw a well-labeled diagram showing the floor of it. (5)
c. Write the three features of increased intracranial pressure. (3)

4. Key: Foramen Transversarium
a. Identify the flagged foramen. (2)
b. Name three structures passing from it. (3)
c. Write about the ossification of typical cervical vertebra.  (5)

5. Key: Superior Orbital Fissure
a. Identify the flagged foramen. (2)
b. Name three nerves passing through its middle part. (3)
c. Define diploic vein and name any three of it. (5)

6. Key: Hypoglossal Canal
a. Identify the flagged foramen. (2)
b. Name four muscles supplied by cranial nerve passing through it.  (4)
c. List 4 unpaired bones of skull. (4)

7. Key: Temporal Bone
a. Identify the displayed bone. (2)
b. Name different parts of it. (4)
c. List the boundaries and importance of suprameatal triangle.  (4)

8. Key: Orbicularis Oculi
a. Identify the flagged muscle. (2)
b. Name the different parts of this muscle and the nerve supplying it. (4)
c. Name any four other muscles of facial expression. (4) 
9. Key:  Parotid Gland
a. Identify the displayed specimen. (2)
b. List the structures within it. (4)
c. Give the anatomical explanation for Frey's syndrome.   (4) 

10. Key: Sternocleidomastoid muscle
a. Identify the flagged muscle. (2)
b. Write the functions and nerve supply of it. (4)
c. List the muscle forming the floor of posterior triangle. (4)


11. Key: Tentorium Cerebelli
a. Identify the flagged part of the displayed specimen. (2)
b. Name three dural venous sinuses related to it. (3)
c. List the structure lying in the lateral wall of the cavernous sinus. (5)

12. Key: tongue
a. Identify the flagged specimen. (2)
b. List any four muscles of it. (4)
c. List any four parts of the cervical fascia. (4) 
13. Key: Masseter
a. Identify the flagged muscle. (2)
b. Write the function and nerve supply of it. (4)
c. List any four contents of infratemporal fossa. (4)

14. Key: facial artery
a. Identify the tied vessel. (2)
b. List any four branches of it. (4)
c. List posterior and terminal branches of external carotid artery. (4) 

15. Key: Hyoid bone
a. Identify the displayed bone. (2)
b. Name the parts and developmental source of it. (5)
c. List any three content of carotid sheath. (3)

16. Key: Thyroid gland
a. Identify the displayed specimen. (2)
b. List five structures related with medial surface of it.  (5)
c. Name any three subarachnoid cisterns. (3)

17. Key: Eyeball
a. Identify the displayed specimen. (2)
b. Name six muscles attached to it. (6)
c. List two structures found within cavernous sinus. (2) 

18. Key: Middle meatus
a. Identify the flagged region. (2)
b. List the Paranasal air sinuses opening to this region. (4)
c. List four structures forming the nasal septum. (3)

19. Key: Lateral Rectus
a. Identify the flagged muscle. (2)
b. Write its action and nerve supply. (4)
c. Write the parts of internal ear containing endolymph. (4) 

20. Key: Vagus Nerve
a. Identify the tied structure. (2)
b. Name any four branches of it arising in the neck. (4)
c. List the nuclei of facial nerve. (4)

21. Key: Anterior cerebral artery
a. Identify the tied vessel. (2)
b. List the branches of basilar artery. (5)
c. List three characteristic features of cerebral veins. (3) 

22. Key: Stylomastoid foramen
a. Identify the flagged foramen. (2)
b. List two structures passing through it. (2)
c. With the help of diagram show the branches of the ophthalmic artery. (6)



VIVA Questions

1. What is Bell’s palsy? (2)
2. Why the infection behind the prevertebral fascia cannot extend below the superior mediastinum?  (2)
3. What is the most common cause of subarachnoid hemorrhage? (2)
4. What is Argyl-Robertson pupil? (2)
5. Tell two features of medial medullary syndrome. (2)

MCQs on Viral Infections - Oral Pathology


# The feature that distinguishes Herpes Zoster from other Vesiculobullous eruptions is :
A. Unilateral occurence
B. Severe burning pain
C. Prominent crusting vesicles
D. Subepidermal bullous formation

# A 3 year old child has a fever of 102 degrees F ; and following upper respiratory tract infection discrete vesicles and ulcers on the soft palate and pharynx are noted. The most probable diagnosis is :
A. Herpangina
B. Scarlet fever
C.Rubella
D. Herpetic gingivostomatitis

Regressive changes in Tooth : Attrition, Abrasion, Erosion and Abfraction

Regressive alterations are the group of degradative changes in the teeth which occur due to non-bacterial causes and result in wear and tear of the tooth structure with some impairment of function. Let's see some of the commonest regressive alterations of teeth one by one.

Firstly, Attrition. Attrition is a form of regressive change in teeth characterized by wear of tooth substance or restoration as a result of the tooth to tooth contact during occlusion, mastication or parafunction. Mostly, attrition is an age-related physiological process whose rate and severity depends on several factors like diet quality, dentition, masticatory force and chewing habits. So, older individuals often exhibit more attrition than the younger ones.

Attrition may also  be pathological which may be caused either due to:
a. Abnormal occlusion - leading to traumatic contact during chewing which causes more tooth wear
b. Premature extraction of teeth - which causes attrition of remaining teeth as the occlusal load on these teeth increase after the extraction of teeth because the masticatory force of an individual remains constant.

Also, pathological attrition may be due to parafunctional chewing habits like bruxism and habitual chewing of coarse and abrasive foods or other substances like tobacco and betel nut.

Abrasion: It is the pathological wearing of tooth structure or dental restorations by friction with foreign substances independent of occlusion. Toothbrush abrasion is the commonest type of abrasion caused by faulty toothbrushing technique, excessive force during tooth brushing and a dentrifice with strong abrasive. Abrasion may also be caused by habitual chewing of betel nut. tobacco and Pan (betel quid), and also by faulty clasp design in removable partial denture prosthesis. Tailors, carpenters, hairdressers, and shoemakers who use their teeth to hold nails and pins also develop abrasion.

Erosion: It is the progressive irreversible loss of hard dental tissues by some chemical process that doesn't involve bacterial action. It may be caused due to extrinsic factors such as acidic foods and beverages, medications ( Vitamin C and Hydrochloric acid preparations) and occupational exposure to acidic vapors. Intrinsic factors causing erosions are systemic diseases like Bulimia, GERD (Gastroesophageal reflux disease), etc. which cause increased vomiting and regurgitation of bowel contents into the mouth.

Abfraction: It is the pathological loss of tooth structure caused by biochemical loading forces. Excessive force during chewing or clenching cause repeated flexure of tooth and cause ultimate material fatigue and wearing off of tooth away from the point of loading.

MCQs on Growth and Development - Orthodontics


# Growth site of the mandible is in the :
A. Body
B. Condylar cartilage
C. Coronoid process
D. Ramus

# Maxilla develops by :
A. Endochondral bone formation
B. Intramembranous bone formation
C. cartilage replacement and intramembranous bone formation
D. mostly cartilage replacement and a little by intramembranous

MCQs on Etiology of Malocclusion - Orthodontics


# Malocclusion can be progressive in:
A. Class I
B. Class II
C. Class III
D. Combination of both class I and Class III

# Retained mandibular deciduous central incisors will result in:
A. Lingual eruption of mandibular permanent incisors
B. Labial eruption of mandibular permanent incisors
C. Impaction of mandibular permanent incisors
D. Ankylosis of mandibular permanent incisors

MCQs on Development of Dentition - Orthodontics


# In children, median diastema between maxillary permanent incisors closes with the eruption of:
A. Maxillary permanent first premolars
B. Maxillary permanent lateral incisors
C. Maxillary permanent canines
D. Maxillary permanent second molars

# The average "Leeway space" available in each half of the maxilla is approximately:
A. 0.9 mm
B. 2.9 mm
C. 4.0 mm
D. 6.9 mm

MCQs on Child Psychology - Pedodontics


# Most realistic approach in managing a difficult child in dental clinic is:
A. Disregard the behavior of child
B. Make child familiar with clinical atmosphere
C. Physical methods to make child accept the treatment
D. None of the above

# Hand over mouth exercise (HOME) is effective behavioral modification technique in the age group of:
A. 3 to 6 years
B. Under 3 years
C. 6 to 9 years
D. Above 9 years