phylum. 1  Biology. the primary subdivision of a taxonomic kingdom, grouping together all classes of organisms that have the same body plan. 2  Linguistics. a category consisting of language stocks that, because of cognates in vocabulary, are considered likely to be related by common origin. Compare stock (def 13).
There are between 500 and 600 lymph nodes in the average adult human body.
A: There are hundreds of lymph nodes throughout the human body, mainly located in the head and neck region according to Mayo Clinic. However, lymph nodes are ... Full Answer >