BIO 253 NEWEST FINAL EXAM (ACTUAL195 QUESTIONS) WITH SOLUTIONS

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BIO 253 NEWEST FINAL EXAM (ACTUAL195
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QUESTIONS) WITH SOLUTIONS. 5 5




The parts of the brain stem are - <<<Answers>>>Lpons, midbrain,
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medulla oblongata 5




brain stem function - <<<Answers>>>L1. control heartbeat (cardiac
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center)

2. breathing (RR) 5




3. blood pressure (vasomotor center)
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medulla oblongata function - <<<Answers>>>Lregulating vital function
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(breathing, digestion, heart rate) 5 5 5




midbrain function - <<<Answers>>>Lrelay center for visual/auditory
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impulses/motor control 5




Pons function - <<<Answers>>>LManagement of sleep, arousal, and
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facial expressions. (4)
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Cerebellum function - <<<Answers>>>Lprocess and store information,
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coordinates voluntary movements (posture, balance, speech)
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diencephalon function - <<<Answers>>>Lmemory processing and
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emotional response 5

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parts of diencephalon - <<<Answers>>>Lthalamus and hypothalamus
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Thalamus function - <<<Answers>>>Lsensory relay station
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When do the semilunar valves close? - <<<Answers>>>L- When the
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pressure in the arteries is greater than the pressure in the ventricles
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-when ventricles contract
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pulmonary gas circuit - <<<Answers>>>Lcarries blood to the lungs for
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gas exchange and returns it to the heart
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systemic circuit - <<<Answers>>>Lcarries blood between the heart and
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the rest of the body
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pulmonary gas exchange - <<<Answers>>>Lmovement of gases between
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lungs and blood5 5




systemic gas exchange - <<<Answers>>>Lmovement of respiratory gases
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between blood in systemic capillaries and systemic cells
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Conduction system of the heart - <<<Answers>>>LSA node,
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AV node, Bundle of
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His, Purkinje fibers
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EKG waves - <<<Answers>>>LP: atrial activity PR: AV
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node
QRS: ventricular activity
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T: repolarization of the ventricles U: may
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or may not be present
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EKG Waves/Intervals - <<<Answers>>>LPR Interval: 0.12-
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0.20 Secs. QRS Interval: 0.12 Secs.
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how to measure cardiac output - <<<Answers>>>Lheart rate x stroke
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volume


what can effect stroke volume? - <<<Answers>>>L what cell
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makes mucous? - <<<Answers>>>Lgoblet cell
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Blood supply to the heart - <<<Answers>>>L-Left Coronary Artery
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supplies blood to left heart wall
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-Right Coronary Artery supplies blood to right heart wall
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