General Functions of the Nervous System page 363

1. Sensory receptors detect changes in internal and external body conditions.

2. Integrative functions bring sensory information together and make decisions that motor functions act upon.

3. Motor impulses stimulate effectors to respond.

4. Neuron structure a. A neuron includes a cell body, cell processes, and the organelles usually found in cells.

b. Dendrites and the cell body provide receptive surfaces.

c. A single axon arises from the cell body and may be enclosed in a myelin sheath and a neurilemma.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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