BNNS501 - 3rd and 4th Learning Objectives With Solution

BNNS501 - 3rd and 4th Learning
Objectives With Solution

Role of the nervous system in homeostasis *

The nervous system helps all the parts of the body to communicate with each
other. Nervous and endocrine systems maintain homeostasis.

CNS and PNS function/components. *

CNS is made up of brain and spinal cord. PNS is made up of the nerves
coming out of that central nervous system.

Function of CNS is to integrate sensory information that the PNS collects
from all over the body and responding to it by coordinating conscious and
unconscious activity.

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Divisions in the nervous system. *

CNS and PNS.

PNS -> somatic nervous system and autonomic nervous system.

Autonomic -> sympathetic nervous system and parasympathetic nervous
system.

State the 3 functions of the nervous system. *

Sensory function - In the PNS, receptors sense change in internal or external
environment. Sensory neurons conduct impulses too CNS.




Integrative function - In CNS, analyse and store sensory info. made decision's
regarding response.




Motor function - In the PNS, respond to stimuli by initiating action. Motor
neurons conduct motor impulses.

Efferent and Afferent?

Efferent - Motor

Afferent - Sensory

Function of neurons