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