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.
Small, bean-shaped structures called lymph nodes are found near the lymphatic vessels. There are about 600 lymph nodes throughout the body, some in deep tissues and others closer to the skin. Clusters of nodes are found in the neck, armpits, abdomen and groin.Other nodes are found in the chest, arms, and legs.here are about 600 lymph nodes throughout the body, some in deep tissues and others closer to the skin. Clusters of nodes are found in the neck, armpits, abdomen and groin. Other nodes are found in the chest, arms, and legs.