The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous system, most especially its cellular features. Recognize the cellular composition of this biological system through this tutorial.
The central nervous system (CNS) is made up of the brain, a part of which is shown inFigure 1and spinal cord and is covered with three layers of protective coverings called meninges (from the Greek word for membrane). The outermost layer is the dura mater (Latin for “hard mother”). ...
Cells of the nervous system exhibit an extraordinary diversity in shape, size, and number of unique interactions with other cells. Diverse cell types are organized into assemblies and patterns and those specialized components are integrated into a physiology of the whole organ. The stereotypical image...
Understanding the nervous system has been a long journey of inquiry, spanning several hundreds of years of meticulous studies carried out by some of the most creative and versatile investigators in the fields of philosophy, evolution, biology, physiology, anatomy, neurology, neuroscience, cognitive sci...
Chapter 2 Assessment of the Nervous System Assessing Needs Assessing the Level of Consciousness Vital Signs Assessment of Pupillary Reaction Motor and Sensory Assessments The Patient History Physical Examination Assessing Mental Status Cranial Nerve Assessment Evaluating the System: Diagnostic Tests Conclusion...
innermost layer of connective tissue that surrounds individual axons within a nerve enteric nervous system peripheral structures, namely ganglia and nerves, that are incorporated into the digestive system organs enteric plexus neuronal plexus in the wall of the intestines, which is part of the enteric...
Glial cells perform a variety of functions in the central nervous system and make up 50% of CNS by volume, and 95-98% by numbers. Neurons are the "active" or functional cells of the nervous system and carry electrical signals. Glial cells are small supporting cells that do not carry elec...
The steady-state level of a specific mRNA is determined by its rate of synthesis (transcription) as well as its rate of degradation (mRNA turnover). Although modulation of the transcriptional rate remains the predominant mode for regulating gene expression in thenervous system, evidence continues ...
These informational pulses executed in our nervous system allow us to do our daily functions. The processing of this information is done in the CNS, the brain, a highly developed mass of nerve cells. The inner workings of the brain are investigated on the next tutorial,Types and Causes of ...
Senses & Reflexes in the Nervous System Visual Worksheet Register to view this lesson Are you a student or a teacher? Biology 201L: Anatomy & Physiology I with Lab 16chapters |136lessons Ch 1.Biology 201L Labs Ch 2.Anatomy & Physiology Concepts ...