7. Control centers
The brain, the control center of the body.
The brain receives information from the
sensors.
Examines information to the ideal value
which is the body functions well.
8. Communication System
The nervous system and the endocrine are the
communicating systems of the body.
They carry the information to all parts of the body.
Through nerve impulse and hormones, they dictate
the target cell or organ in the body how to respond
with the internal and external changes.
9. Targets
Targets are any organ, tissue or cell, responsible for
the changes in the activity of the body in response to
the messaged received.
The human body is made up of electrical signals or
neurons that receive input, process the input and
produce a response.
11. Parts of the neurons
a) Dendrites are branched cell components that
receive stimulus from other neurons or sensory
receptors.
b) The cell body contains a nucleus, which will process
the stimulus.
c) The axon will transmit stimulus to a gland, muscle,
organ, or other neuron.
12. Target Cell Response to
Hormones
Different types of hormones are secreted by the endocrine
glands and are directly diffused into the bloodstream.
The hormones will travel to the different parts of the body.
Only the target cells have receptors to which the specific
type of hormones can bind.
The response occurs when the hormones lock and key
binding triggers the target tissue.
13. How the Nervous System
Coordinates and
Regulates Feedback
mechanism to Maintain
Homeostasis
14. Homeostasis and internal
environment
The complex tissues, organs and organ system
in our body must respond to the different
conditions and situations in the environment.
The body has a variety of control systems to
keep its internal environment stable and
responsible for making homeostasis.
15. Negative Feedback
Negative feedback is a control system to reduce or
minimize any changes or conditions of the body,
which helps the whole body to be stable.
The term negative is a deviation from set point.
The set point refers to the normal value and ideal
requirement of the body to maintain homeostasis.
16. Components of Negative
Feedback
the control center of the body is the brain, which
establishes the set point.
The receptor detects changes within the body. The
receptor monitors the environment and responds to change
(stimuli).
The effector is responsible for the response to change.
The stimulus produces a change to a variable (the factor
being regulated)
17. Positive Feedback
Is a control system that uses informationfrom sensors to
increase the rate of processes.
It is also the exact opposite of negative feedback.
Takes place where rapid change is necessary.
It deviates from a set point.
It becomes greater which makes a bad situation worse.
This type of feedback rarely found in healthy people.
