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