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Kerala PSC Dental Surgeon Exam, Previous Year Question Paper
- Which among the following is not a bone of facial skeleton
- Ethmoid
- Lacrimal
- Maxilla
- Vomer
Answer – A) Ethmoid
Ethmoid is an unpaired calvarial bone which forms the floor of anterior cranial fossa
- Which among the following is not a boundary of Macewan’s triangle?
- Posteriorsuperior margin of external acoustic meatus
- Supramastoid crest
- Vertical tangent to posterior margin of meatus
- Vertical tangent to anterior margin of meatus
Answer- C) Vertical tangent to posterior margin of meatus
Macewen’striangle isthe most important
surgical landmark for the mastoid antrum
- Which among the following is a branch of mandibular nerve
- Auriculotemporal nerve
- Infraorbital nerve
- Zygomaticofacial Nerve
- Zygomaticotemporal Nerve
Answer A) Auriculotemporal Nerve
- Which among the following is the derivative of the first branchial arch ?
- Buccinator
- Mylohyoid
- Platysma
- Stapedius
Answer B) Mylohyoid
Rest of the muscles are derived from second branchial arch- Which among the following is not a content of carotid sheath?
- Common carotid Artery
- Internal jugular vein
- Sympathetic Trunk
- Vagus Nerve
Answer C) Sympathetic Trunk , it lies outside the carotid sheath
- Functional residual capacity is calculated by
- IRV + TV
- ERV+RV
- ERV+TV
- IRV+TV+ERV
Answer-B
It is the volume of air remaining in the lungs after normal expiration. Value-2200ml
- Renin is secreted by
- Macula densa cells
- Juxtaglomerular cells
- Lacis cells
- Mesangial cells
Answer- B
The juxtaglomerular cells produce renin which is involved in the renin angiotensin mechanism. It helps to convert angiotensionogen1 into angiotensin which is converted into angiotensin 2 by angiotensin converting enzyme produced by the lungs. This causes constriction of the blood vessels and increases the blood pressure.- QRS complex represents
- Ventricular depolarization
- Atrial depolarization
- Ventricular repolarization
- Atrial depolarization plus nodal delay
Answer- A
P wave- Atrial depolarization
QRS complex- Ventricular depolarization (also called initial ventricular complex)
T wave- ventricular repolarization
- All are sensations carried by the posterior column tracts except
- 2 point discrimination
- Vibration sense
- Pain
- Stereognosis
Answer- C
Pain perception is carried by the lateral spinothalamic tract
- Chvostek’s sign is seen in
- Cushing’s syndrome
- Addison’s disease
- Hyperthyroidism
- Hypoparathyroidism
