7- Fawzia Sheet MSQs (2) Flashcards
1- A 60-year-old woman with breast carcinoma complains of difficulty chewing her. . food and is found to have numbness of the lower lip on one side. CT scanning shows a small metastatic lesion affecting the bony skull base on. The same side as the lip numbness. Which foramen is the most likely to involve?
A. Foramen caecum
B Foramen magnum
C Foramen ovale
D. Foramen rotundum
E. Foramen spinosum
Ans C
Mandibular branch of the Trigeminal nerve CN V
2- A 60-year»old man presents to the-Emergency Department with epistaxis. The source Of the bleeding is identified as Little’s area and resolves with direct cautery. Which vessel is most likely responsible for the bleeding?
A. Anterior ethmoidal artery oget
B. Infraorbital artery
C. Middle meningeal artery
D Sphenopalatine artery
E. Supratrochlear artery
Ans D
3- A 26-year-old man is having a stereotactic frame fitted to his skull prior to radiosurgery on a cerebral arteriovenous malformation. Four pins secure the frame tightly through the scalp to the outer table of the skull, two anteriorly, two posteriorly. On insertion of one of the- posterior pins, arterial haemorrhage is encountered. Which artery is most likely to have been punctured?
A The ascending pharyngeal artery
B The middle meningeal artery
C The occipital artery
D The posterior cerebral artery
E The posterior communicating artery
Ans C
4- A 4-year-old boy presents to the Emergency Department with a two-day history of ether We Headache, vomiting and drowsiness. A. CT scan reveals dilatation of both his lateralo We ventricles and his third cerebral ventricle: His fourth ventricle was of normal size. It is suspected that he has an obstruction to his cerebrospinal fluid flow At which of the following sites is the obstruction most likely to be?
A. Cerebral aqueduct of Sylvius
B. Infundibular recess
C. Interventricular foramen (of Monro)
D. Lateral foramen of fourth ventricle (foramen of Luschka)
E. Median foramen of fourth ventricle (foramen of Magedie)
Ans A
5- A 30-year-old man is assaulted with a hammer and sustains a depressed fracture at the Vertex, of the skull Profuse venous bleeding is noted at the fracture site. Which vascular structure is most likely to have been perforated?
A. Cavernous sinus
B. Inferior sagittal sinus
C. Sigmoid sinus
D. Superior petrosal sinus
E. Superior sagittal sinus
Ans E
remember there is another important land mark in the skull called The Pterion it is the site for Middle menengeal artery mostly got injuried because it’s the weakest point in the skull
6- A 19-year-old man was assaulted and sustained injuries to the right side of his head. After two weeks he notices dial his right eye is dry and it could not produce tears. from which ganglion is post synaptic fibers arise to supply lacrimal gland?
A. Geniculate ganglion
B. Inferior ganglion of the vagus nerve Can
C. Otic ganglion
D. Pterygopalatine ganglion
E. Superior cervical ganglion
Ans D
Lacrimal Gland Peterggopalatine Ganglion While the Parotid is Otic Ganglion
7- A 35-year-old motorcyclist is involved in a road traffic accident and fractures his temporal bone, completely transecting the facial nerve just distal to the geniculate ganglion. Which function of this nerve remains?
A. Lacrimation
B. Salivation from the submandibular gland
C. Sensation to the anterior tongue
D. Smile
E. Taste
Ans A
8- A-56 year old man presents with headache and vomiting with deterioration over the last two weeks. On examination he has papilledema. A CT scan shows a space occupying lesion in the right parietal lobe. He develops a sudden homonymous hemianopia. Which past of the visual system to be affected?
A. Lens
B. Optic Chiasm
C. Optic radiation
D. Retina
E. Second cranial nerve
Ans C
Bitemporatl Hemianopia = Optic CHiasma
Homonymous hemianopia = optic radiation
9- A 19- year-old man fell down a flight of stairs. On presentation to the Emergency Department his Glasgow Coma Score (GCS) was 14/15 with no local neurological signs. An hour later he Vomited and his GCS deteriorated to 10. He developed a fixed and dilated left pupil. Which of the following is likely to seen on the scan?
A. Left-sided acute subdural haematoma
B. Left-sided extradural haematoma
C. Left-sided midbrain haematoma
D. Right-sided acute subdural haematoma
E. Right-sided extradural haematoma
Ans B
1st key in this stem is the lucid interval exclusive for the extradural hemorrhage.
The 2nd key eye affected on the same side of the brain insult
10- A 65 years old man with known ischemic heart disease and atrial fibrillation presents with a paralysis of his right lower limb. Which arterial territory is most likely to be involved?
A. Left anterior cerebral
B. Left middle cerebral
C. right anterior cerebral
D. Right middle cerebral
E. Right posterior cerebral
Ans A
ACA stroke.
· Paralysis of contralateral foot and leg
· Sensory loss over toes, foot and leg
. Impairment of gait and stance
· Abulia (slowness and prolonged delays to perform acts)
. Flat affect, lack of spontaneity, slowness, distractibility
· Cognitive impairment, such as perseveration and amnesia
. Urinary incontinence
11- A 34-year-oid man is admitted to-the Emergency Department with a head injury. On examination his Glasgow coma scale is 9. A CT scan of the brain demonstrates an extra dural haemorrhage. Which of the following arteries is the most likely source of this?
A. Anterior cerebral
B. Middle cerebral
C. Middle meningeal
D Posterior cerebral
H. Superficial temporal
Ans C
MMA commonly injured at pterion Branch from Maxillary artery which is divided by the lateral ptergoid which function to open the mandible
The maxillary is branching from the erxternal carotid uMR
The internal carotid doesn’t has any extracranial branches
The 1st branch of the internal carotid is the ophthalmic artery which is within the optic canal with the optic nerve
While the ophthalmic nerve within the cavernous sinus
12- A 19-year-old man fell down a flight of stairs. On presentation to the Emergency Department his Glasgow coma scale (GCS) was 14/15 with no focal neurological signs. An hour later he vomited and his GCS deteriorated to 10. He developed a fixed and dilated left pupil -. Which of the following accounts for the pupillary signs?
A. Compression of oculomotor nerve parasympathetic fibres
B. Compression of sympathetic fibres to the left iris
C. Compression of the afferent fibres in the left optic nerve
D. Compression of the Edinger Westphal nucleus
E. Compression of the optic chiasmae
Ans A
ParaSympathetic Nerve = 1973
Occulomotor (3)
Sympathetic dilate
Parasympathetic constricts
When one is damaged the other dominates
When Parasympathetic damaged no constriction
Sympathetic dilatation dominate
13- A 32-years old man presents with a painful torticollis there is no past medical history and his only complaint is that he has been feeling rather tired over the last 4 nights. On examination, he has large rubbery mass in the lateral aspect of his neck as well as a few smaller masses along his internal jugular vein. You correctly assume that the muscular neck spasm and the large mass are connected. The most likely cause of his torticollis is due to pressure on?
A. Ansa cervicalis
B. Cervical plexus branch
C. Cranial accessory nerve
D. Spinal accessory nerve
E. Vagus nerve
Ans D
15- During arch aortography, the vertebral artery would be seen to; a rise directly from which of the following?
A. Arch of the aorta
B. Brachiocephalic artery
C. Common carotid artery
D. Internal carotid-artery
E. Subclavian artery
Ans E
14- A 32-year-oid mountain biker presents to the outpatient clinic. He fell awkwardly, with excessive lateral flexion of his neck to the left side. He describes some paresthesia over his right shoulder and lateral arm. Which appears to have been improving over the past hour. What is the most likely injury suggested by this history?
A. Axonotmesis of the C5 nerve root
B. Axonotmesis of the T1 nerve root
C. Neuropraxia of the C5 nerve root
D. Neuropraxia of the T1 nerve root
E. Neurotmesis of the C5 nerve foot
Ans C
17- A 19-year-old woman presents to the Emergency .Department profoundly hypovolemic having fallen from a horse. A postero-anterior (PA) chest radiograph shows a fracture to the medial third of the left clavicle. Which of the following vessels was-most likely damaged?
A Brachiocephalic trunk
B Left axillary artery
C Left common carotid artery
D Left subclavian artery
E Left vertebral artery
Ans D
16- A 75-year-old man, who smokes heavily, underwent coronary artery bypass grafting six months ago. A left internal-mammary artery graft was used. He now complains of angina on pegging his laundry on the washing line to dry. Which of the following lesions best explains his symptoms?
A. .Micro-emboli from the left common carotid artery
B. Micro-emboli from the le\t internal carotid artery
C. Stenosis.of the subclavian artery at the level of the costo-cervical trunk
D. Stenosis of the subclavian artery distal to the insertion of scalenus anterior
E. Stenosis of the subclavian artery proximal to the first branch
Ans E
18- A 65-year-old man has a history of transient ischemic attacks. He is due to undergo carotid
endarterectomy. Which one of the following is true of the internal carotid artery?
A. Begins at the level of the sixth cervical vertebra ter
B. Divides into the anterior, middle and posterior cerebral arteries
C. Gives off the ophthalmic artery
D. Is accompanied within the skull by preganglionic sympathetic nerves
E. Passes through the foramen ovale
Ans C
C4 is the Common carotid Bifurcation
the preganglionic cells of the sympathetic nervous system are located between the first thoracic segment and third lumbar segments of the spinal cord
The carotid canal is a passage within the petrous temporal bone and transmits the internal carotid artery and sympathetic plexus. Its inferior opening is called the carotid foramen and is situated anteriorly to the jugular fossa and medially to the carotid plate.
The two nerves that pass from the foramen lacerum are the greater petrosal nerve, which represents the pre-ganglionic parasympathetic fibers, and the deep petrosal nerve which, representing the post-ganglionic sympathetic fibers
So simply The internal carotid artery doesn’t pass through the foramen lacerum and not related to the preganglionic sympathetic nerves which already found in the foramen lacerum
A useful mnemonic to remember the branches of the internal carotid artery is:
. A VIP’S COMMA
Mnemonic
· A: anterior choroidal artery (C7)
· V: Vidian artery (C2)
. I: inferolateral trunk (C4)
· P: posterior communicating artery (C7)
· S: superior hypophyseal artery (C6)
· C: caroticotympanic artery (C2)
· O: ophthalmic artery (C6)
· M: meningohypophyseal trunk (C4)
· M: middle cerebral artery (C7)
· A: anterior cerebral artery (C7)
19- A 35-year-old man presents with a three-week history of low back pain and a three day history of pain and weakness in his left leg. Physical examination demonstrates numbness over the posterior aspect of the left calf extending to the lateral aspect, of the foot. Left ankle reflex is absent. A magnetic resonance scan shows compression of the left S1. nerve root. What is the most likely structure compressing the nerve?
A. Annulus fibrosus
B Anterior longitudinal ligament
C. Nucleus pulposus
D. posterior longitudinal ligament
E Vertebral end plate
Ans C
20- A 21-year-old map comes into the Emergency Department with a severe headache and neck stiffness of recent onset. You suspect acute meningitis and decide immediately to treat with antibiotics and perform a lumbar puncture. After your third attempt to obtain for cerebrospinal fluid (CSF) you notice that the fluid obtained is stained red. However during the collection of CSF into three containers it is noted that the final bottle is now cleared of any blood. Which anatomical structure is the most likely to be responsible for this bleeding?
A .. Anterior spinal artery
B. Epidural artery
C. Subarachnoid vein
D. Veins within the erector spinae muscles
E. Vertebral venous plexus
Ans E
Also Study the layers the needle will pass throough during the Spinal Anethesia and lumbar puncture
21- A 29 year old pregnant woman is having uncontrolled labor pains. She has an epidural for pain relief. Which of the following is true?
A. An epidural puncture should only be performed below the L1 level to avoid damage to the spinal cord
B. An epidural puncture should only be performed below the L4 level to avoid the spinal cord
C.The epidural space (also known as the extradural space) contains numerous nerve roots and a venous plexus
D. The liganientum flavum is rarely pierced during a low epidural procedure
E. The supraspinous and interspinous ligaments are rarely pierced during the procedure
Ans C
23- A 40 -. year-Qld woman presents with a parotid tumour. A biopsy reveals perineural invasion. Which is the most likely pathology?
A. Acinic cell .carcinoma
B . Adenocarcinoma
C. Adenoid cystic carcinoma
D. Lymphoma
E. Pleomorphic salivary adenoma
Ans C
Perineural invasion ,distant metastasis, survival rate 5 years less than acinic it is only 35 %
The key is the perineural invasion
Adenoid Cystic Carcinoma
3 basic growth patterns :
· Tubular - grade 1
· Cribriform - grade 2
. Solid - grade 3
22- A 24 years old man is brought to the Emergency Department following a road traffic accident. He has obvious airway compromise due to mouth/ facial haemorrhage which requires a surgical airway. The surface landmarks used to localise, the optimal site for a tracheostomy incision are midway between the suprasternal notch and which of the following?
A Cricoid
B Hyoid
C Mastoid
D Laryngeal prominence
E Thyroid
Ans A
Remember Cricoid Cartilage at C 6 ( Common Recall )
And in Tracheostomy you cut the thyroid Isthmus
VERTEBRAL LEVELS OF STRUCTURES:
C1 Open mouth, dens, spinal root of XI crosses transverse process of atlas, Superior cervical ganglion
C2 Superior cervical ganglion
C3 Body of hyoid bone
C4 Upper thyroid cartilage, bifurcation of common carotid artery
C6 Cricoid cartilage, larynx becomes trachea, pharynx becomes oesophagus, vertebral artery enters foramen transversum, middle cervical ganglion, carotid tubercle of Chassaignac; inferior thyroid artery crosses to thyroid
C7 First easily palpable spinous process, stellate ganglion
25- The right and left pulmonary arteries are derived from which of the following embryological aortic arches?
A. Second aortic arch
B. Third.aortic arch
C. Fourth aortic arch
D. Fifth aortic arch
E. Sixth aortic arch
Ans E
24- In order to expose the right axillary artery, a transverse skin incision is typically made below
the clavicle from a point just lateral- to the sternal end of the clavicle to the deltopectoral groove. Which of the following structures would be encountered in the dissection down to the vessel?
A. Lateral thoracic artery
B. Phrenic nerve
C. Suprascapular artery
D. Thoracic duct
E. Thoraco-acromial artery
Ans E
26- In the fetal circulation, the majority of blood passing from the inferior vena cava into tire right atrium subsequently passes next into which; one of the following?
A. Aorta
B. Left atriumDrBishog
C. left ventricle B
D. pulmonary artery
E. Right ventricle
Ans B
27- A 2 day old baby presents with increasing respiratory distress. He was born at term By normal vaginal delivery. On examination he has cyanosis of the lower limbs and marked respiratory in drawing of the chest His femoral pulses ate absent bilaterally and he has been anuric for the last 2 hours. Pulse rate is 140 beats/minute, regular, and his blood pressure is 60/30 mmhg in both upper limbs. What is the most likely diagnosis?
A. Hypoplastic left heart syndrome
B. Interrupted aortic arch
C. Pulmonary atresia and ventricular septal defect
D. Transposition of the great arteries
E. Tricuspid atresia
Ans B
Tetralogy of Fallot (TOF) is a congenital heart defect with four components:
1) large ventricular septal defect (VSD), which is a hole between the two ventricles or /pumping chambers in the heart
2) pulmonary stenosis, which is narrowing beneath or in the blood vessel leading to the lungs
3) overriding of the aorta, in which the aorta lies directly above the ventricular septal defect
4) as a result of these events, the right ventricle becomes thickened or hypertrophied.
28- A 22-year-old men arrives in the Emergency Department with sudden breathlessness due to a large pneumothorax. An immediate chest drain is inserted into the fifth left intercostal space in the mid-axillary line, There is hemorrhage into the drainage bottle. Which of the following structures is the most likely cause of this acute hemorrhage ?e
A. Intercostal artery m
B. Left pericardiophrenic artery
C. Linguia of the lung
D. Right ventricle of the heart
E. Spleen
Ans A
Thoracic Trauma
· Life Threatening Injuries:
· Flail chest out
· Tracheobronchial injury now in
. Tension pneumothorax:
· Needle thoracocentesis
-5th ICS MAL for adult
- UNCHANGED 2nd ICS for child
· 28-32 Fr chest drain for hemothorax (not 36-40 Fr)
· Algorithm for circulatory arrest approach
. Aortic rupture management with Beta Blocker
. Trauma team
29- A 12-year-old child was admitted to the Emergency Department having inhaled a peanut. Where will the peanut most likely to have lodged?
A. Left lower lobe bronchus
B. left upper lobe bronchus
C. Right lower lobe bronchus
D. Right middle lobe bronchus
E. Right upper lobe bronchus
Ans C
30- A 23-year-old man presents to the Emergency Department-with non-specific: chest pains. A postero-anterior (PA) chest radiograph is performed and is normal. Immediately inferior cauidal to the outline of the aortic knuckle was a farther structure with a convex border. What is this structure?
A. The left atrium
B. The pulmonary trunk
C. The oesophagus
D. The right atrium
E. The superior vena cava
Ans B
31- 12 years old girl has a diastolic murmur it is maximally audible in the 2nd left intercostal space. Pathology of which structure is the most likely cause ?
A. Aortic valve
B. Ductus arteriosus
C Mitral valve
D. Pulmonary valve
E. Tricuspid valve
Ans D
Take care the Auscaltatory sites ( the site where you hear the valve ) is different site than the anatomical site of the valve where it’s found
32- A 58-year-old man, admitted for inguinal hernia surgery, is found to have an enlarged heart shadow on his chest radiograph. Which one of the/following statements is true of the right ventricle?
A. Has a muscular wall that is normally thicker than that of the Left ventricle
B. Forms the apex of the heart
C. Forms the right border of the heart
D. Is directly related to the diaphragm
E. Gives rise to the aorta
Ans D
Right Ventricle:
Features :
It has two parts:
1) the inflowing part It is rough due to presence of muscular ridges called trabeculae carneae.
2) the outflowing part /infundibulum It is smooth and forms the upper conical part of the right ventricle which gives rise to pulmonary trunk