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In the fetus, the ductus venosus permits blood to flow:
Alkaloid
A class of naturally occurring organic compounds that mostly contain basic nitrogen atoms, often found in plants and possessing pharmacological effects.
Tobacco
A plant whose leaves are dried and fermented before being used in various ways, such as smoking, chewing, or sniffing, often containing nicotine, an addictive substance.
Fight-Or-Flight Response
Physiological changes in the human body that occur in response to a perceived threat, including the secretion of glucose, endorphins, and hormones as well as the elevation of heart rate, metabolism, blood pressure, breathing, and muscle tension.
Physiological Effects
The changes in the normal functioning of the body resulting from various factors, such as disease, substances, or environmental conditions.
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