Anatomy Answer Key

Anatomy 1. About arytenoid cartilages, all are true except: a. it has a facet that articulates with the inferior horn of thyroid cartilage b. pyramidal shape and has 2 surfaces c. attach to corniculate cartilage at its apex 2. During lower tracheostomy the most vessel liable to injury is : a - superior thyroid artery b- inferior thyroid artery c- inferior thyroid vein d- internal jugular vein 3. all of the following are present in the bronchopulmonary segment except : a- segmental bronchus b- segmental pulmonary vein c- nerves d- lymphatics e- segmental pulmonary artery 4- pseudostratified ciliated columnar epithelium lining all the following except: a-infraepiglottis b-vestibular fold c-conducting bronchiole d-superior part of nasal cavity (or olfactory part) e- nasopharynx 5. The lateral wall of the nose , all are true except: A- Blood supply comes from branches of both the internal and external carotid artery B- Innervation through the ophthalmic and maxillary nerves C- Venous drainage mainly to the cavernous sinus through a large emissary vein D- Lymphatic drainage through the submandibular lymph nodes and retropharyngeal ( upper deep cervical ) lymph nodes. E- All sinuses drain in the middle meatus or infundibulum except the sphenoidal and post ethmoidal sinuses 6. Regarding pterygopalatine fossa; maxillary artery and nerve passing in different directions through A. pterygomaxillary fissure B. Infratemporal fossa C. middle cranial fossa D. infraorbital canal 7. All of the following nerves supply the lateral wall of the nasal cavity EXCEPT: (a) Anterior ethmoidal nerve (b) Posterior ethmoidal nerve (c) Anterior palatine nerve (d) Posterior superior lateral nasal nerve (e) Anterior superior alveolar 8. Which of the following structures is least likely to be damaged during the removal of a tumor in the root of the right lung: (a) Phrenic nerve (b) Pulmonary artery (c) Azygous arch (d) Vagus nerve (e) Recurrent laryngeal nerve 9. Following a thyroidectomy of a 30-year-old man, the surgeon noticed that he had a weak voice and that the right vocal cord was slack. What possibly could the surgeon have tied together: (a) Internal laryngeal nerve with the superior laryngeal artery (b) Internal laryngeal nerve with the inferior laryngeal artery (c) External laryngeal nerve with the superior thyroid artery (d) Recurrent laryngeal nerve with the inferior thyroid artery (e) Recurrent laryngeal nerve with the inferior laryngeal artery 10. A dentist accidently dropped a tooth and it fell down the respiratory tract. Which of the following is the most possible final destination of the tooth: (a) Left lung, upper lobe, anterior segment (b) Left lung, lower lobe, posterior segment (c) Right lung, middle lobe, medial segment (d) Right lung, lower lobe, apicobasal segment (e) Right lung, lower lobe, posterior segment 11. All of the following regarding the pterygopalatine fossa are correct EXCEPT: (a) The maxillary artery enters it through the pterygomaxillary fissure (b) The maxillary nerve enters it through foramen rotundum (c) The parasympathetic ganglia receive preganglionic parasympathetic nerve fibers from the facial nerve (d) The parasympathetic ganglia receive postganglionic sympathetic nerve fibers through the lesser petrosal nerve (e) It communicates with the oral cavity below through the palatine canal 12. All of the following regarding the quadrangular membrane are correct EXCEPT: (a) Its upper free margin thickens to form the aryepiglottic folds (b) It’s an intrinsic membrane (c) Is innervated by the recurrent laryngeal nerve (d) Its lower free margin thickens to form the false vocal cords (e) Attaches posteriorly to the arytenoid cartilage 13. All of the following regarding the maxillary air sinuses are correct EXCEPT: (a) They open into the middle meatus of the nasal cavity (b) Located posteriorly to the pterygopalatine fossa (c) Innervated by branches of the maxillary nerve (d) Extraction of an upper molar tooth can result in formation of a fistula (e) Has a bad drainage especially in chronic sinusitis 14. The muscle that forms part of the true vocal cord is: (a) Thryoarytenoid (b) Cricothryoid (c) Thyrohyoid (d) Transverse arytenoid (e) Oblique arytenoid 15. Which is wrong about arytenoid cartilage: (a)- It articulates with other 3 cartilages (b)- its mucosa supply by internal laryngeal nerve (c)- it gives an attachment to true vocal cords 16. Wrong about pterygopalatine ganglion: (a)- it receives preganglionic sympathetic through deep petrosal nerve (b)- it located between sphenoid and palatine bones 17. Wrong about bone support lateral nasal wall: (a)- ethmoid (b)- lacrimal (c)- maxilla (d)- lateral pterygoid plate of sphenoid 18. Wrong about true vocal cords: A-has smooth muscle B- no blood vessels C- no lymph drainage D-lined by oral epithelium 19. Wrong about pterygopalatine ganglion: (a)- Is parasympathetic and receives preganglionic fibers from the trigeminal nerve (b)- Receives postganglionic sympathetic from carotid plexus (c)- Send pharyngeal nerve through palatovaginal canal to supply glands in the mucosa of nasopharynx 20. All the following have opposing actions except: a- cricothyroid and thyroarytenoid muscles. b- Oblique arytenoid and aryepiglotticus muscles. c-transverse arytenoid and posterior cricoarytenoid muscles 21. Which of the following passes through the opening in thyrohyoid membrane: A- Inferior laryngeal artery B- External laryngeal nerve C- Internal laryngeal nerve D-Superior thyroid artery 22. The diaphragmatic pleura is supplied by which nerve A- Intercostal nerves B- Phrenic nerve C- pulmonary plexus 23. Which of the following isn’t found in pterygopalatine fossa A- Maxillary nerve B- Pterygopalatine ganglia C- Sphenopalatine nerve D- First part of the maxillary artery 24- The post ganglionic parasympathetic innervation to lacrimal gland is through a. Greater palatine nerve b. Zygomaticotemporal nerve c. Long sphenopalatine nerve 25- Which of the following is incorrect about the right pulmonary arterya. It originates from pulmonary trunk at sternal angle level b. It is longer than the left one c. It is related anteriorly to the SVC and ascending aorta 26- all of the following related left to trachea except: azygous arch 27-Stab in the neck affects: Suprapleural membrane 28-Wrong about cricothyroid muscle: It is innervated by nerve that accompanies superior laryngeal artery (the cricothyroid muscle is innervated by external laryngeal nerve , and the one that accompanies superior laryngeal artery is the internal laryngeal nerve ) 29-what is wrong about costodiaphragmatic recess: longest at midclavicular line (the true is midaxillary line ) 30-nerve to pterygoid canal is made of: greater and deep petrosal nerve 31- Wrong: right recurrent laryngeal behind trachea in superior mediastinum 32-stab wound caused pneumothorax can be due to injury through all except > ninth intercostal space at midclavicular line (the true is midaxillary line) 33-one of the paranasal sinuses is supplied by the superior alveolar nerve: maxillary air sinus 34- Innervated by recurrent laryngeal nerve and relaxes vocal cords: Thyroarytenoid 35.wrong about trachea: Posteriorly covered by striated trachealis muscle. (true is that it is smooth ) 36.wrong about nose: The lateral wall is mainly supplied by long sphenopalatine nerve. (true is :long sphenopalatine nerve supplies the lower post. Part of nasal septum) 37.not from the branches of third part of maxillary artery: Buccal artery. (buccal artery branches from 2nd part ) 38.correct association between artery and nerve: Inferior laryngeal artery with recurrent laryngeal nerve. 39.wrong about true vocal cords: They are thickening of the lower free border of quadrangular membrane (true is cricovocal membrane ) 40.wrong statement: When you insert a canula in pneumothorax , it must be inserted at the upper border of intercostal space.(true is lower border ) 41-Not associated with the lateral wall of nasal cavity: horizontal part of palatine bone 42-A patient had a problem with his voice, his doctor found that his left true vocal cord in the adducted position, what’s true: his left recurrent laryngeal nerve was ligated with the inferior thyroid artery during thyroidectomy 43- After thyroidectomy, right vocal cord was found to be paralyzed: surgeon ligated recurrent laryngeal with inferior thyroid artery 44-Nose bleeding (epistaxis in the Kiesselbach’s area) happen because of rupture of: Nasopalatine artery 45-What’s wrong about lung carcinoma: the tumor will cause partial injury to left recurrent laryngeal nerve which will affect the adductors 46-Not liable to injury when removing a tumor in the hilum: recurrent laryngeal nerve. 47-Wrong about suprapleural membrane: moves upward 48-Which of the following is wrong regarding tracheotomy: inferior thyroid artery might be injured 49-Which of the following isn't a bony support to the lateral wall of the nose: medial pterygoid plate of ethmoid bone 50- Impression of what structure is at the left lung medial surface: Esophagus 51-A patient had pleural effusion & a nurse did aspiration to suck the fluid at the midaxillary line at the upper border of his 9th rib, the second day, he complained of tickling skin sensation that reached the skin of his abdomen (pain sensation from the site of injection to the umbilical region), which is correct: the needle inserted for aspiration caused injury to his 9th intercostal nerve 52- Wrong: cricoid mucosa innervated by internal laryngeal nerve 53-Wrong about pulmonary arteries: bronchial arteries are branches of them 54-Main artery in Kiesselbach’s area: superior labial of facial artery 55-Wrong about pterygopalatine ganglion: parasympathetic postganglionic fibers go to the lacrimal glands through orbital nerves 56-Wrong about suprapleural membrane: attaches to transverse process of first thoracic vertebra (true is C7) 57-Not affected in the dissection of the root of the right lung: recurrent laryngeal nerve 58-Wrong about the lungs: don’t have lymph nodes 59-Wrong about sphenoid air sinus: drains into superior meatus 60-No symmetry in the superficial anatomy of the lungs in: the anterior border below sternal angle 61-Wrong about conus elasticus: innervated by internal laryngeal nerve 62-Leaves pterygopalatine fossa to the infratemporal fossa: maxillary nerve 63-What nerve supplies cricothyroid muscle: external laryngeal nerve 64-A nerve to the left of the trachea with a recurrent nerve: vagus nerve 65- Greater palatine artery is a branch of a. Maxillary artery in pterygopalatine fossa b. Anterior ethmoidal artery c. Facial artery d. Maxillary artery in lateral nasal wall 66- After suffering from sinusitis, an oral fistula is formed with a. Maxillary sinuses b. Frontal sinuses c. Ethmoidal sinuses d. Sphenoidal sinuses 67- All of the following are lined with by pseudostratified columnar epithelium with :goblet cells except a. Olfactory region b. Terminal bronchioles c. Posterior surface of epiglottis d. False vocal cord 68- needle in the left ninth intercostal space at mid-axillary line wouldn’t affect a. Diaphragm b. Spleen c. Lung d. Pleura e. Peritoneum 69-Which of these muscles causes closure of rima glottidis in case of recurrent laryngeal nerve injury a. Lateral crico-arytenoid muscle b. Transverse arytenoid muscle c. Posterior cricoarytenoid muscle d. Vocalis muscle 1- A- 2- C 3- B 4- D 7-B 10-D 13-B 16-A 19-A 22-B 25-A 66-A 69-C 5- C 8-E 11-D 14-A 17-D 20-B 23-D 26 till 64 is A 67-B 6-A 9-C 12-C 15-A 18-C 21-C 24-B 65-A 68-C