Biomedical Science(1)

1. The smallest bone of the skull is:

 Zygoma

 Lacrimal

 Palatine

 Mandible

2. How many foramens are in the mandible:

 2 foramens, Mandibular and infra-orbital foramens

 2 foramens, Mandibular and Incisive foramens

 2 foramens, Mandibular and Mental foramens

 2 foramens, Mental and Incisive foramens

3. The most fragile bone of the face is:

 Palatine bone

 Mandible

 Lacrimal Bone

 Maxilla

4. Zygomatic arch is formed by:

 Temporal and Maxilla

 Zygoma and temporal

 Zygoma and Maxilla

 Temporal, Zygoma and Maxilla

5. Meninges is formed by:

 Pia Mater

 Dura Mater

 Arachnoid Mater

 All of them

6. Subarachnoid Space is:

 Above Pia Mater

 Below Arachnoid Mater

 Between Dura and Arachnoid Maters

 Between Arachnoid and Pia Maters

7. Cerebrospinal Fluid (CSF) is in:

 Dura Mater

 Subarachnoid space

 Extradural Space

 Pia Mater

8. Artery supplies cranial dura mater is:

 Middle meningeal artery

 Anterior meningeal artery

 Posterior meningeal artery

 Internal Carotid artery

9. The following sensory nerves are:

 Olfactory, Optic, and Vestibulocochlear

 Trigeminal, Facial, Glossopharyngeal and Vagus

 Oculomotor, Trochlear, Abducens, Accessory and Hypoglossal

 Accessory and Hypoglossal

10. The following motor nerves are:

 Olfactory, Optic and Vestibulocochlear

 Trigeminal, Facial, Glossopharyngeal and Vagus

 Oculomotor, Trochlear, Abducens, Accessory, and Hypoglossal

 Accessory and Hyphoglossal

11. Division 3 of CN V is running from:

 Superior orbital fissure

 Foramen Rotundum

 Foramen Ovale

 Inferior orbital fissure

12. Division 1 of CN V is running from:

 Superior orbital fissure

 Foramen Rotundum

 Foramen Ovale

 Infra-orbital foramen

13. Orbit and eye are innervated by:

 Abducens nerve

 Trochlear nerve and Oculomotor nerve

 C. Optic nerve and ophthalmic nerve

 Abducens, Trochlear, Oculomotor, Optic and Ophthalmic nerve

14. A is……………………………..

 Greater palatine foramen

 Lesser palatine foramen

 Nasopalatine foramen

 Greater palatine nerve

15. A is……………………………..

 Incisive fossa

 Nasopalatine nerve

 Lesser palatine nerve

 Greater palatine nerve

16. A is……………………………..

 Nasal bone

 Vomer

 Mandible

 Palatine bone

17. A is……………………………..

 Nasal bone

 Lacrimal bone

 Ethmoid bone

 Sphenoid bone

18. Pathway between nasal cavity and nasopharynx is called

 Nares (nostrils)

 Choanae (posterior nasal apertures)

 Nasopharyngeal isthmus

 Oropharyngeal isthmus

19. The anterior openings to the nasal cavities are

 Nares (nostrils)

 Choanae (posterior nasal apertures)

 Nasopharyngeal isthmus

 Oropharyngeal isthmus

20. Boundary between oral cavity and oropharynx is

 Nares (nostrils)

 Choanae (posterior nasal apertures)

 Nasopharyngeal isthmus

 Oropharyngeal isthmus

21. The nasopharynx is anteriorly to which spinal vertebrae?

 C1

 C2-C3

 C4-C6

 C7

22. Salpingopharyngeus muscle is located

 Styloid process

 Cartilaginous part of auditory tube

 Palatine aponeurosis of soft palate

 All are correct

23. Stylopharyngeus muscle is located

 Styloid process

 Cartilaginous part of auditory tube

 Palatine aponeurosis of soft palate

 All are correct

24. Palatine tonsil is located between

 Palatoglossal and palatopharyngeal folds

 Palatoglossal and salpingopharyngeal folds

 Palatopharyngeal and salpingopharyngeal folds

 Salpingopalatine and salpingopharyngeal folds

25. Temporalis muscle is innervated by

 Masseteric nerve

 Deep temporal nerve

 Pterygoid nerve

 Posterior auricular nerve

26. Masseteric muscle is innervated by

 Masseteric nerve

 Deep temporal nerve

 Pterygoid nerve

 Posterior auricular nerve

27. Lateral pterygoid muscle is innervated by

 Masseteric nerve

 Deep temporal nerve

 Pterygoid nerve

 Posterior auricular nerve

28. Medial pterygoid muscle is innervated by

 Masseteric nerve

 Deep temporal nerve

 Pterygoid nerve

 Posterior auricular nerve

29. All the following are true about parotid gland, EXCEPT

 Largest salivary gland

 Mucous secretion

 Extends from zygomatic arch down to upper neck

 Deep and superficial parts

30. What are within parotid gland?

 Internal carotid artery, External jugular vein and The last 4 cranial nerves

 External carotid artery, Retromandibular vein and Facial nerve

 Internal carotid artery, Internal jugular vein and The last 4 cranial nerves

 External carotid artery, Retromandibular artery and Facial nerve

31. Parotid gland’s duct also known as

 Stenson's duct

 Wharton's duct

 Bartholin's duct

 All are incorrect

32. The opening of Stenson’s duct is at

 Sublingual fold

 Sublingual caruncle

 Opposite upper 2nd molar teeth

 Floor of mouth on sublingual fold or into submandibular duct

33. A branch of temporo-facial division of CNVII is

 Temporal branch

 Buccal branch

 Marginal mandibular branch

 Cervical branch

34. A is …………………………..

 Temporal branches

 Zygomatic branches

 Buccal branches

 Marginal mandibular branches

35. A is …………………………..

 Temporal branches

 Zygomatic branches

 Buccal branches

 Marginal mandibular branches

36. A is …………………………. v

 Temporal branches

 Zygomatic branches

 Buccal branches

 Marginal mandibular branches

37. A is …………………………..

 Temporal branches

 Zygomatic branches

 Buccal branches

 Marginal mandibular branches

38. Muscles of facial expression are innervated by

 Trochlear nerve (CN IV)

 Trigeminal nerve (CN V)

 Abducen nerve (CN VI)

 Facial nerve (CN VII)

39. Muscles of mastication are innervated by

 Trigeminal nerve (CN V)

 Trochlear nerve (CN IV)

 Abducen nerve (CN VI)

 Facial nerve (CN VII)

40. Which is the facial expression muscle around the eye?

 Orbicularis oculi

 Nasalis muscle

 Frontalis muscle

 Procerus muscle

41. Which is the facial expression muscle around the eye?

 Nasalis muscle

 Corrugator supercilli

 Frontalis muscle

 Procerus muscle

42. Which is the facial expression muscle around the nose?

 Orbicularis oculi

 Orbicularis oris

 Nasalis

 Mentalis

43. All are muscles around the mouth, EXCEPT

 Buccinator

 Orbicularis oris

 Orbicularis oculi

 Levator labii superioris

44. A is …………………………..

 Orbicularis oculi

 Orbicularis oris

 Corrugator supercilli

 Mentalis

45. A is ………………………….

 Levator labii superioris

 Zygomaticus minor

 Zygomaticus major

 Depressor anguli oris

46. A is …………………………..

 Levator labii superioris

 Zygomaticus minor

 Zygomaticus major

 Depressor anguli oris

47. មនុស្សស្រីម្នាក់អាយុ ២៩ឆ្នាំមានវត្តមាននៅក្នុងផ្នែកសង្គ្រោះបន្ទាន់ ED (Emergency Department )ដោយមានរបួសផ្នែកក្រោយនៃក្បាល។អ្នកជំងឺត្អូញត្អែថាឈឺក្បាលខ្លាំង ហើយគេបានបញ្ជូនគាត់ទៅផ្នែកថត MRI បង្ហាញថាមានហូរឈាមនៅក្នុងលលាដ៏ក្បាល ហើយ ការធ្វើ CT scan បង្ហាញថាមានបែកលលាដ៏ក្បាល (Skull)។ តើសរសៃឈាមណាដែលទាក់ទងក្នុងការហើម in an epidural hematoma?

 Anterior communicating artery

 Posterior cerebral artery

 Anterior cerebara artery

 Posterior communicating artery

 Middle meningeal artery

48. មនុស្សស្រីម្នាក់អាយុ ២៩ឆ្នាំមានវត្តមាននៅក្នុងផ្នែកសង្គ្រោះបន្ទាន់ ED( Emergency Department ) ដោយមានរបួស ផ្នែកក្រោយនៃក្បាល។ អ្នកជំងឺត្អូញត្អែថាឈឺក្បាលខ្លាំង ហើយគេបានបញ្ជូនគាត់ទៅ ផ្នែកថត MRI បង្ហាញថាមានហូរឈាម (Bleeding ) នៅក្នុងលលាដ៏ក្បាល ហើយ CT scan បង្ហាញថាមានបែកលលាដ៏ក្បាល។ រចនសម្ព័ន្ធទាំងអស់ខាងក្រោមមាននៅក្នុង posterior cranial fossa. លើកលែងតែ EXCEPT

49. មនុស្សស្រីម្នាក់អាយុ២៩ឆ្នាំមានវត្តមាននៅក្នុងផ្នែកសង្គ្រោះបន្ទាន់ ED Emergency Departmentដោយមានរបួស ផ្នែកក្រោ យនៃក្បាល។ អ្នកជំងឺត្អូញត្អែថាឈឺក្បាលខ្លាំង ហើយគេបានបញ្ជូនគាត់ទៅ ផ្នែកថត MRI បង្ហាញថាមានហូរឈាម (Bleeding ) នៅក្នុងលលាដ៏ក្បាល ហើយ CT scan បង្ហាញ ថាមានបែកលលាដ៏ក្បាល។ សួរថាតើ Cranial nuclei នៃ Thalamus ដែលពាក់ព័ន្ធទៅនឹង Mediating facial sensation និងការឈឺចាប់ណាខ្លះ?

 Ventral posterior medial nuclei (PM)

 Ventral anterior nucleus

 Lateral geniculate. nucleus

 Ventral posterior lateral nuclei

 Ventral lateral nuclei

50. មនុស្សស្រីម្នាក់អាយុ ២៩ឆ្នាំ មានវត្តមាននៅក្នុងផ្នែកសង្គ្រោះបន្ទាន់ដោយមានរបួស ផ្នែកក្រោយនៃក្បាល។ អ្នកជំងឺត្អូញត្អែថាឈឺក្បាលខ្លាំង ហើយគេបានបញ្ជូនគាត់ទៅ ផ្នែកថត MRI បង្ហាញថាមានហូរឈាមនៅក្នុងលលាដ៏ក្បាល ហើយ CT scan បង្ហាញថាមាន បែកលលាដ៏ក្បាល។ សួរថាតើ Cranial nuclei of the thalamus ណាខ្លះដែលពាក់ព័ន្ធទៅនឹង mediating facial senation and pian? ទាំងអស់នៅខាងក្រោមនេះគឺជា Brainstem nuclei ពាក់ព័ន្ធទៅនឹងមុខងារនៃ Crania nerve លើកលែងតែ