Practice Head & Neck Anatomy questions with answers and explanations.
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Circle of Willis is an arterial anastomotic ring at the base of the brain connecting anterior and posterior circulations.
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Brachial plexus is a network of spinal nerve roots C5 to T1 that supplies the upper limb.
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Coronary sinus is the main venous channel that drains most of the myocardium into the right atrium.
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Ureterovesical junction is a normal narrowing where the ureter enters the urinary bladder and a common site of stone impaction.
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Recurrent laryngeal nerve is a branch of the vagus nerve that supplies nearly all intrinsic muscles of the larynx.
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Hepatoduodenal ligament is the free edge of the lesser omentum containing the portal triad.
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Broca area is a dominant frontal-lobe region important for motor speech production.
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Cerebellum is a hindbrain structure essential for coordination, balance and motor learning.
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Sinoatrial node is a specialized pacemaker region located near the superior vena cava in the right atrium.
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Inguinal canal is an oblique passage in the lower anterior abdominal wall transmitting the spermatic cord or round ligament.
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Pudendal nerve is the main somatic nerve of the perineum, arising from sacral roots S2 to S4.
