BIOLOGY Unit 9 Notes: The nervous & Lymphatic Systems
(1) The Nervous System Structures: Functions: Neurons (nerve cell) Nerves Brain and Spinal Cord Functions: Control all other organ systems. Respond to stimuli inside and outside the body. Maintain homeostasis.
(2) The Lymphatic System *AKA The Immune System Structures: White Blood Cells Lymph Vessels, Nodes and Fluid Functions: Protect the body against infectious agents. Filter out useless cell parts from the blood and send to excretory system.