(master node) node that drains lymph from a particular region. Lymph from a particular tissue drains into a primary node, then primary nodes drain into a secondary node (central node) 4 groups of superficial cervical lymph nodes. submental, submandibular, external jugular, and anterior jugular nodes.
For the 1992 book, see Immediate Family (book) . The immediate family is a defined group of relations, used in rules or laws to determine which members of a person's family are affected by those rules. It normally includes a person's parents, spouses, siblings, children and first cousins.
Nuclear family The nuclear family or elementary family is a term used to define a family group consisting of a pair of adults and their children. This is in contrast to a single-parent family, to the larger extended family, and to a family with more than two parents. Nuclear families typically center on a married couple; the nuclear family may have any number of children.