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Unit 6 Lesson 5 The Nervous and Endocrine Systems

Horizontales
A column of nerve tissue running from the base of the brain through the vertebral column.
The organ that is the main control center of the nervous system.
A substance that is made in one cell or tissue and that causes a change in another cell or tissue in a different part of the body.
A collection of glands and groups of cells that secrete hormones that regulate growth, development, and homeostasis; includes the pituitary glands, thyroid, parathyroid, and adrenal glands, the hypothalamus, pineal body and the gonads.
Verticales
The structures that control the actions and reactions of the body in response to stimuli from the environment; it is formed by billions of specialized nerve cells, called neurons.
An elongated extension of a neuron that carries impulses away from the cell body.
Branchlike extensions of neuron that receives impulses from neighboring neurons.
A nerve cell that is specialized to receive and conduct electrical impulses.
A group of cells that make chemicals for use elsewhere in the body.