(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.
Immediate early genes (IEGs) are genes which are activated transiently and rapidly in response to a wide variety of cellular stimuli. They represent a standing response mechanism that is activated at the transcription level in the first round of response to stimuli, before any new proteins are synthesized. Thus IEGs are distinct from late response genes, which can only be activated later, following the synthesis of early response gene products.