Exam QUESTIONS AND ANSWERS 100%
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respiratory zone - CORRECT ANSWERS respiratory bronchioles, alveolar ducts, alveoli
What does the Respiratory Zone do? - CORRECT ANSWERS Allow inhaled oxygen to diffuse
into the lung capillaries in exchange for CO2
Conducting Zone - CORRECT ANSWERS nose, pharynx, larynx, trachea, bronchi, bronchioles
What does conducting zone do? - CORRECT ANSWERS conducts air to respiratory zone,
humidifies, warms, and filters air
Most common cancer mutation? - CORRECT ANSWERS Acquired
What does anticholinergic mean? - CORRECT ANSWERS blockade of muscarinic receptors -
This inhibits nerve impulses responsible for involuntary muscle movements and various bodily functions
What does dopamine do? - CORRECT ANSWERS influences movement, learning, attention,
and emotion. Dopamine enables neurons in your brain to communicate and control movement.
What does messenger RNA do? - CORRECT ANSWERS 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? - CORRECT ANSWERS Make proteins (protein synthesis)
Neurotransmitters - CORRECT ANSWERS chemical messengers that cross the synaptic gaps
between neurons
Neurotransmitters at the parasympathetic postganglionic synapses - CORRECT ANSWERS
Acetylcholine and nitric oxide
Atropine Neurotransmitters - CORRECT ANSWERS 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 - CORRECT ANSWERS
Beta-adrenergic receptor blockers - CORRECT ANSWERS -Blocks NE/Epi effects on heart -
less Ca++ entry
-Decreases force of cardiac contractions
What do anticholinergics do? - CORRECT ANSWERS Decrease the activity of acetylcholine
(neurotransmitter that regulates movement)
Atropine - CORRECT ANSWERS muscarinic antagonist (anticholinergic)
beta-adrenergic receptors - CORRECT ANSWERS 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.