What Is the Correct Sequence in Which a Drop of Blood

question 85

Multiple Choice

What is the correct sequence in which a drop of blood returning from the body encounters the heart chambers?

• A)left atrium \(\rightarrow\) left ventricle \(\rightarrow\) right atrium \(\rightarrow\)right ventricle
• B)left ventricle \(\rightarrow\) left atrium \(\rightarrow\)right ventricle \(\rightarrow\) right atrium
• C)right atrium\(\rightarrow\) left atrium \(\rightarrow\)left ventricle \(\rightarrow\) right ventricle
• D)right atrium \(\rightarrow\) left ventricle\(\rightarrow\)left atrium \(\rightarrow\) right ventricle
• E)right atrium \(\rightarrow\) right ventricle \(\rightarrow\)left atrium \(\rightarrow\) left ventricle

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Definitions:

Neurotransmitters

Chemical messengers that transmit signals across synapses from one neuron to another, influencing various functions such as mood, sleep, and heart rate.

Epigenetics

The study of heritable changes in gene expression that do not involve changes to the underlying DNA sequence.

Nature and Nurture

The debate regarding the relative contributions of genetic inheritance (nature) and environmental factors (nurture) to human development.

Heredity

The passing on of physical or mental characteristics genetically from one generation to another.