आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry) – Basic Sciences MCQ
आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry) – MD/MS प्रवेश
Basic Sciences · MECEE-PG – MD/MS/MDS Entrance · ४३३ प्रश्न
४३३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry): प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Which cranial nerve passes through the cavernous sinus itself, close to the internal carotid artery, rather than in its lateral wall?
सही उत्तर: ग) Abducent nerve (VI)
The abducent nerve runs within the sinus lateral to the internal carotid artery, so it is often the first nerve affected in cavernous sinus lesions. CN III, IV, V1 and V2 lie in the lateral wall.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 'dangerous layer' of the scalp is the:
सही उत्तर: ख) Loose areolar tissue
The loose areolar tissue (fourth layer) contains emissary veins that connect scalp veins to the intracranial venous sinuses, so infection here can spread inside the skull. The dense connective tissue layer holds the blood vessels that bleed profusely when cut.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following structures does NOT pass through the carpal tunnel?
सही उत्तर: ग) Ulnar nerve
The ulnar nerve and artery pass superficial to the flexor retinaculum through Guyon's canal. The carpal tunnel transmits the median nerve and the tendons of FDS, FDP and FPL.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The artery palpable in the anatomical snuffbox is the:
सही उत्तर: घ) Radial artery
The radial artery crosses the floor of the anatomical snuffbox, which is formed mainly by the scaphoid and trapezium. Tenderness in the snuffbox after a fall suggests scaphoid fracture.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The lateral boundary of Hesselbach's (inguinal) triangle is formed by the:
सही उत्तर: घ) Inferior epigastric vessels
Hesselbach's triangle is bounded laterally by the inferior epigastric vessels, medially by the lateral border of rectus abdominis and inferiorly by the inguinal ligament. Direct inguinal hernias emerge through this triangle, medial to the inferior epigastric vessels.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In most individuals, the sinoatrial (SA) nodal artery is a branch of the:
सही उत्तर: क) Right coronary artery
The SA nodal artery arises from the right coronary artery in about 60% of people and from the circumflex in the rest. Hence right coronary occlusion is commonly associated with sinus node dysfunction.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In an adult, the spinal cord usually terminates at the level of the:
सही उत्तर: ख) Lower border of the L1 vertebra
In adults the conus medullaris ends at about the lower border of L1 (L1–L2 disc). The dural sac continues down to S2, which is why lumbar puncture is done below the cord at L3–L4 or L4–L5.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which intrinsic muscle of the larynx is NOT supplied by the recurrent laryngeal nerve?
सही उत्तर: ख) Cricothyroid
The cricothyroid is supplied by the external laryngeal branch of the superior laryngeal nerve; all other intrinsic laryngeal muscles are supplied by the recurrent laryngeal nerve. Cricothyroid tenses the vocal cords.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The only muscle that abducts the vocal cords is the:
सही उत्तर: ग) Posterior cricoarytenoid
The posterior cricoarytenoid is the sole abductor of the vocal folds, so bilateral paralysis can cause airway obstruction. The lateral cricoarytenoid is an adductor.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The mandibular division of the trigeminal nerve leaves the skull through the:
सही उत्तर: क) Foramen ovale
The mandibular nerve (V3) passes through the foramen ovale. The maxillary nerve (V2) passes through the foramen rotundum, and the middle meningeal artery through the foramen spinosum.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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