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MSN 570 PATHO MIDTERM EXAM REVIEW QUESTIONS WITH CORRECT ANSWERS.
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MSN 570 PATHO MIDTERM EXAM REVIEW QUESTIONS WITH CORRECT ANSWERS.
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MSN 570 PATHO MIDTERM EXAM REVIEW QUESTIONSWITH CORRECT ANSWERS
respiratory zone - ANSWER -respiratory bronchioles, alveolar ducts, alveoli
What does the Respiratory Zone do? - ANSWER -Allow inhaled oxygen to diffuse into the lung capillaries
in exchange for CO2
Conducting Zone - ANSWER -nose, pharynx, larynx, trachea, bronchi, bronchioles
What does conducting zone do? - ANSWER -conducts air to respiratory zone, humidifies, warms, and
filters air
Most common cancer mutation? - ANSWER -Acquired
What does anticholinergic mean? - ANSWER -blockade of muscarinic receptors - This inhibits nerve
impulses responsible for involuntary muscle movements and various bodily functions
What does dopamine do? - ANSWER -influences movement, learning, attention, and emotion. Dopamine
enables neurons in your brain to communicate and control movement.
What does messenger RNA do? - ANSWER -Transcribes information from the DNA in the nucleus and
carries it to the cytoplasm, and then to the ribosome. Single-stranded, intermediate molecule. Carries
the instructions for making proteins.
What do ribosomes do? - ANSWER -Make proteins (protein synthesis)
Neurotransmitters - ANSWER -chemical messengers that cross the synaptic gaps between neurons
Neurotransmitters at the parasympathetic postganglionic synapses - ANSWER -Acetylcholine and nitric
oxide
MSN 570 Patho Midterm Exam Review questions with correct answers
, Atropine Neurotransmitters - ANSWER -Atropine is a muscarinic receptor antagonist that is used to
inhibit the effects of excessive vagal activation on the heart, which is manifested as sinus bradycardia
and AV nodal block. Therefore, atropine can temporarily revert sinus bradycardia to normal sinus
rhythm and reverse AV nodal blocks by removing vagal influences.
alpha adreneric receptors - ANSWER -
Beta-adrenergic receptor blockers - ANSWER --Blocks NE/Epi effects on heart - less Ca++ entry
-Decreases force of cardiac contractions
What do anticholinergics do? - ANSWER -Decrease the activity of acetylcholine (neurotransmitter that
regulates movement)
Atropine - ANSWER -muscarinic antagonist (anticholinergic)
beta-adrenergic receptors - ANSWER -Portions of the nervous system that, when stimulated, can cause
an increase in the force of contraction of the heart, an increased heart rate, and bronchial dilation.
alpha-adrenergic receptors - ANSWER -Portions of the nervous system that, when stimulated, can cause
constriction of blood vessels.
arachnoid meninges - ANSWER -middle layer - network of fibers and collagen that are part of the
suspension system that helps protect the brain and spinal cord from sudden impact
arachnoid meninges layer function - ANSWER -contains spinal fluid - connects dura mater and pia mater.
network of fibers and collagen that are part of the suspension system that helps protect the brain and
spinal cord from sudden impact
Blood Brian Barrier - ANSWER -The barrier system that restricts the passage of various chemicals and
microscopic entities between the bloodstream and the central nervous system. It still allows for the
passage of essential substances such as oxygen.
MSN 570 Patho Midterm Exam Review questions with correct answers
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