| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
What is a major difference between the somatic and autonomic nervous systems?
one is inherited, the other is learned |
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one controls thinking, the other controls feeling |
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one controls voluntary activity, one controls involuntary activity |
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each belongs to a different nervous system |
Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
What part of the nervous system controls simple reflexes?
autonomic |
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cerebrum |
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spinal cord |
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medulla |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
atomic mass units |
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protons |
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electrons |
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electron shells |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
In the heart, the __________ artery and vein manage blood flow to the lungs.
pulmonary |
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aorta |
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capillary |
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atrial |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
Stratus clouds are __________clouds characterized by horizontal layering with a broad flat base.
all-altitude |
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high-altitude |
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low-altitude |
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mid-altitude |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.