Practice your trivia skills: Science & Nature
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Science & Nature
141. What causes the sound of a heartbeat?
Closure of the heart valves
Blood exiting the heart
Contraction of the heart chambers
Relaxation of the heart chambers
142. What is Hypernatremia?
Decrease in blood potassium
Decrease in blood iron
Increase in blood glucose
Increase in blood sodium
143. Which of these is NOT a part of the structure of a typical neuron?
Node of Ranvier
Schwann cell
Myelin sheath
Islets of Langerhans
144. Which of these is a type of stretch/deep tendon reflex?
Scratch reflex
Gag reflex
Pupillary light reflex
Ankle jerk reflex
145. Which planet did the "Viking 1" spacecraft send surface images of, starting in 1976?
Saturn
Jupiter
Venus
Mars
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