Nervous system Flashcards
What does the nervous system consists of?
Brain, spinal cord, and nerves
What are the Division of the Nervous System?
Central and Peripheral Nervous system
What does the CNS consists of?
Brain and Spinal Cord
What does the PNS consists of?
nerve network throughout the body
What is the the nervous systems three essential roles?
Sensing, integrating and responding
What does sensing do?
the nervous system uses sense organs and nerve endings to detect stimuli or changes in both inside and outside the body
What does integrating do?
the nervous system processes the information received and determines what response is appropriate or determines what to do next
What does responding do?
once the information is processed and once the individual understands whats going on, action is required and the muscles will make action
What two cells make up the nervous system?
Neurons and Neuroglia
What are neurons?
they are like tiny messengers in the body. They help the body send messages to different parts of the body
What are Neuroglia?
the supportive cells of the nervous system. They make sure to protect the neurons.
What are Neuroglia also called?
glial cells
What are the 5 types of glial cells?
Oligodendrocytes, Shwann cell, Epyendmal cells, microglia and astrocytes
What do Oligindecytes do?
cover the outside of neurons. They create myelin in the central nervous system.
What do Shwann cells do?
create myelin in the peripheral nervous system