Published on September 27, 2014
Anatomy MCQs with answers for MBBS undergraduates 1. The trachea A. begins at the sixth cervical vertebral level B. lies in the posterior mediastinum C. is lined by columnar ciliated epithelium D. bifurcates at the level of the sternal angle E. has continuous cartilaginous rings in its wall correct A, D, E 2. The right atrium A. has a smooth part derived from the right horn of sinus venosus B. forms the right border of the heart C. receives the superior vena cava D. receives the coronary sinus E. shows traberculae carnae on its internal surface correct A, B, D,E 3. Goblet cells A. are unicellular glands B. are abundant in the colon C. secrete mucinogen granules D. have poorly developed Golgi complexes E. are absent in respiratory bronchioles correct A, B, C, E 4. Alveolar macrophages A. originate from the blood neutrophils B. synthesise surfactant C. contain abundant lysosomes D. are mononucleated E. secrete histamine correct C, D
5. The descending thoracic aorta A. begins at the fourth thoracic vertebral level B. lies in the superior mediastinum C. passes through the diaphragm at the twelfth thoracic vertebral level D. gives off the subcostal artery E. gives off the first posterior intercostal artery correct A, C, D 6. Branches arising from the thoracic aorta include the A. bronchial artery B. superior intercostal artery C. superior phrenic artery D. subcostal artery E. musculophrenic artery correct A, C, D 7. The right coronary artery A. arises from the anterior aortic sinus B. gives off the circumflex artery C. is accompanied by the great cardiac vein D. supplies the SA node E. supplies the posterior part of the interventricular septum correct A, D, E 8. The optic nerve A. is an extension of the brain B. is enclosed by the three meninges C. is made up of axons of cells of the ganglion layer of the retina D. passes through the superior orbital fissure E. is crossed superiorly by the ophthalmic artery in the orbit correct A, B, C, E 9. The oculomotor nerve
A. has its motor nucleus in the midbrain B. lies in the lateral wall of the cavernous sinus C. divides into superior and inferior divisions in the orbit D. supplies the superior oblique muscle E. carries general visceral efferents correct A, B, E 10. Structures derived from the optic cup include A. sclera B. rods and cones C. optic nerve D. lens E. ciliary muscle correct A, B 11. The mandibular nerve A. emerges from the skull through the foramen spinosum B. lies deep to the lateral pterygoid muscle C. gives off the auriculotemporal nerve D. supplies the dura mater of the anterior cranial fossa E. is the nerve of the first branchial arch correct B, C, E 12. The middle meningeal artery A. arises from the first part of the maxillary artery B. enters the skull through the foramen spinosum C. lies in the anterior cranial fossa D. runs between the periosteum and the dura mater E. supplies the diploe correct A, B, D, E 13. The anterior facial vein A. is a continuation of the angular vein B. communicates with the pterygoid plexus C. has a tortuous course D. receives the anterior division of the retromandibular vein E. drains into the external jugular vein correct A, B, D View slide
14. The facial artery A. is a branch of the external carotid artery B. originates in the digastric triangle C. has a tortuous course D. can be palpated against the lower border of the mandible E. gives off the labial artery correct A, C, D, E 15. The hypoglossal nerve A. emerges between the pyramid and olive B. runs deep to the posterior belly of the digastric C. has its nucleus in the lower medulla D. innervates the stylohyoid muscle E. carries fibres from the first cervical spinal segment correct A, B, E 16. The glossopharyngeal nerve A. is the nerve of the third branchial arch B. passes through foramen lacerum C. passes between the internal and external carotid arteries D. contains fibres arising from the nucleus ambiguus E. contains general visceral efferents correct A, C, D, E 17. Right common carotid artery A. is a branch of the brachiocephalic artery B. begins posterior to the right sternoclavicular joint C. lies deep to the anterior border of the right sternomastoid muscle D. ends at the level of the lower border of the thyroid cartilage E. is a muscular artery correct A, B, C, D 18. Regarding the internal carotid artery A. It begins at the level of the upper border of the thyroid cartilage B. Is derived from third aortic arch C. Traverses the petrous temporal bone D. Gives off the middle cerebral artery View slide
E. Supplies the trigeminal ganglion correct A, C, E 19. The internal jugular vein A. is the continuation of the sigmoid sinus B. ends behind the sternoclavicular joint C. drains into the brachiocephalic vein D. has valves E. receives blood from the superior thyroid vein correct A, B, C, E 20. The oesophagus A. commences at the sixth cervical vertebral level B. is constricted by the left main bronchus C. lies in the superior mediastinum D. contains smooth muscle along its entire length E. is related to the right atrium correct A, B, C 21. The oesophagus A. is about 25 cm long B. is constricted by the aortic arch C. lies in front of the descending thoracic aorta D. is partly supplied by the inferior thyroid artery E. is posterior to the right atrium correct A, B, C, D 22. Regarding the paranasal sinuses A. They are lined by pseudostratified columnar ciliated epithelium B. The maxillary sinus is fully developed at birth C. The frontal sinus is not fully developed at birth D. They act as resonators E. Their presence reduces the weight of the skull correct A, C, D, E 23. Contents of the digastric triangle include A. submandibular salivary gland B. facial artery
C. superior thyroid artery D. hypoglossal nerve E. cervical branch of the facial nerve correct A, B, D 24. Muscles receiving a motor supply from the ansa cervicalis include A. stylohyoid B. thyrohyoid C. sternothyroid D. superior belly of the omohyoid E. anterior belly of the digastric correct B, C, D 25. Derivatives of the second branchial arch cartilage include A. styloid process B. stylohyoid ligament C. arytenoid cartilage D. stapes E. lesser horn of the hyoid bone correct A, B, D, E 26. Derivatives of the 2nd branchial arch are A. stapedius B. occipitofrontalis muscle C. sheno-mandibular ligament D. greater horn of the hyoid bone E. tensor palate muscle correct A, B 27. Derivatives of the 3rd pharyngeal pouch are A. inferior parathyroids B. thyroid parenchyma C. palatine tonsillar epithelium D. Hassal’s corpuscles of the thymus E. Parafollicular cells correct A, D 28. Derivatives of the occipital myotomes are A. hyoglossus B. genioglossus C. stylopharyngeus
D. styloglossus E. palatoglossus correct A, B, D 29. The soft palate A. is lined by stratified squamous non keratinizing epithelium on its oral surface B. contains the aponeurosis of the tensor palati C. has taste buds on its oral surface D. receives a sensory innervation from the mandibular nerve E. contains minor salivary glands correct A, B, C, E 30. Internal thoracic artery A. is a branch of the first part of the subclavian artery B. terminates in the seventh intercostal space C. is accompanied by venae comitantes D. gives branches to thymus E. gives off anterior intercostals branches correct A, C, D, E 31. Regarding the brachial plexus A. The nerve to serratus anterior passes posterior to the roots B. The suprascapular nerve arises from the upper trunk C. The axillary nerve is a branch of the medial cord D. The divisions lie behind the clavicle E. The posterior cord continues as the ulnar nerve correct A, B, C 32. In an injury to the upper trunk of the brachial plexus A. the upper arm is medially rotated B. the forearm is pronated C. the functions of the lumbricals are lost D. sensations are lost over the medial side of the forearm E. the biceps jerk is absent correct A, B, E Vas deferens A. starts at the head of the epididymis.
B. is a highly coiled tube. C. passes through the inguinal canal D. contributes to the formation of ejaculatory duct E. provides storage space for spermatozoa CD With regards to the male reproductive system A. seminal vesicles produce seminal fluid B. ducts of the bulbo-urethral glands open into the urethra C. prostate gland secrets an acidic fluid D. parasympathetic nerves cause vasodilatation in the penis E. internal pudendal artery is the main source of blood supply to the penis BDE With regards to the testes A. spermatogenesis takes place in seminferous tubules B. Leydig cells produce testosterone C. sertoli cells are found in the epididymis D. has a good collateral blood supply E. cremaster muscle pulls them closer to the body in cold environments ABDE The pterygopalatine ganglion: A. supplies parasympathetic fibres to the lacrimal gland B. sympathetic nerves from the superior cervical ganglion passes through it C. is suspended from the maxillary nerve D. supplies the iris E. supplies secretomotor fibres to the glands of the nose A, B, C, E Foramina present in the sphenoid bone transmits the following structures: A. middle meningeal artery B. mandibular branch of the trigeminal nerve C. optic nerve D. internal carotid artery E. nasociliary artery A, B, C The maxillary artery: A. terminates in the pterygopalatine fossa B. supplies the sphenoidal air sinuses C. gives off meningeal arteries D. runs on the lateral pterygoid muscle E. supplies the lateral wall of the nose A, B,C,D,E
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