The parenchyma (functional portion) of this organ is comprised of _____ (lymphatic tissue) and _____ (blood-filled sinuses). 
Definitions:
Conversational Tone
Involves a style of communication that is informal, natural, and engaging, resembling everyday conversation.
Confidence
A state of being certain about the truth of something or feeling secure in one's abilities, qualities, and judgment.
Correctness
Accuracy or conformity to rules, standards, or truth.
Clarity
The quality of being clear, understandable, and free from ambiguity.
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