The Nervous System: Introduction To Cells And Systems

Question 1

It is a communications and control network that allows an organism to interact rapidly and adaptively with its environment, where environment includes both the external environment (the world outside the body) and the internal environment (the components and cavities of the body).

Answer 1

Nervous System

Question 2

The nervous system is made up of:

Answer 2

Cell
Connective tissue
Blood vessels

Question 3

Major cell types in the nervous system:

Answer 3

Neurons (nerve cells)

Glia (nerve glue)

Question 4

It is a cell found in the nervous system that generation of signals (to be sent to other neurons or effector cells [e.g., muscle cells]) based on an integration of its own electrical properties with electrochemical signals from other neurons.

Answer 4

Neuron

Question 5

These are points where specific neuron-to-neuron communication occurs.

Answer 5

Synapses

Question 6

It is critical to neuronal function

Answer 6

Synaptic transmission

Question 7

It is characterized as supportive cells that sustain neurons both metabolically and physically, isolate individual neurons from each other, and help maintain the internal milieu of the nervous system; however, it is now known that they also have important roles in shaping the flow of activity through the nervous system.

Answer 7

Neuroglia (glia)