April Exam: muscles, heart and vessels
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What is atrophy? | Loss of muscle over the course of one's life
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Of the 4 muscles of mastication, which is the only that causes protraction? | Lateral pterygoid
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What are the 3 nerves involved in eye innervation? | Occulomotor, trochlear, abducens
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What nerve is the "funny bone" | Ulnar nerve
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Which nerve roots make up the brachial plexus? | C5 - T1
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Which cervical nerve(s) make(s) up the upper trunk of the brachial plexus? | C5 and C6
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Which cervical nerve(s) make(s) up the middle trunk of the brachial plexus? | C7
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Which cervical nerve(s) make(s) up the lower trunk of the brachial plexus? | C8 and T1
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What two nerves come off the posterior cord of the brachial plexus? | Axillary and radial
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What supplies the circle of Willis? | Internal carotid and vertebral arteries
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Does the pulmonary circuit use the left or right side of the heart? | RIGHT
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The systemic circuit uses the left/right side of heart? | LEFT
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Coronary sinus dumps blood in to the... | Right atrium
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Approximate pressure of right side of heart | 15 mmHg
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Approximate pressure of left side of heart | 90 mmHg
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Name the 3 unpaired abdominal arteries | Celiac trunk, superior mesenteric, inferior mesenteric
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What does the celiac trunk supply? | Stomach, liver, spleen, gallbladder, pancreas, duodenum
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What does the superior mesenteric artery supply? | Most of the intestine (large and small)
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What does the inferior mesenteric artery supply? | End stages of digestive tract
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What nerve controls the thenar group? | The median nerve
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Whar nerve controls the hypothenar group? | The ulnar nerve
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What is included in the thenar group? | The thumb & abductors pollicis
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What is included in the hypothenar group? | Short flexors of digiti minimi and abductors
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What is retinaculum? | Occurs where in some places, groups of tendons from separate muscle pass under a band of connective tissue
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