Blair
What are the 3 reactions to fear?
freeze, flight, fight
The bodies communication network that consists of all nerve cells
The nervous system
What part of the nervous system carries messages between the brain and the rest of the body?
the spinal cord
A person is walking through the park and all of a sudden a squirrel jumps out of a bush and the person jumps backwards. What nervous system is at play?
The sympathetic system.
What is the peripheral nervous system?
Nervous system that includes sensory nerves outside the brain and spinal cord that connects the central nervous system to the rest of the body.
What is the difference between the motor and sensory nervous systems with moving information?
Moter sends information from the brain to the body and sensory sends the body to the brain.
The bodies three instinctive responses to danger
Fight, Flight, or Freeze
What part of the brain responsible for detecting fear first
the amygdala
After eating a hearty meal, Isabella comes back to psychology and she feels tired and falls asleep .What nervous system is at play?
parasympathetic system
What are the two major divisions of the somatic nervous system?
Motor pathway and sensory pathway
What is the difference between the peripheral and central nervous systems?
Peripherals include nerves outside the brain and spine and central controls the action between the brain and the spine.
The system that connects the CNS to the organs, limbs, and skin
The Peripheral Nervous System
What are the two parts of the peripheral nervous system and their functions?
autonomic, regulates involuntary and subconscious movements (Self- regulated)
Somatic, controls voluntary movement of skeletal muscles
What is the somatic nervous system?
Allows voluntary movement through signals from the brain to the body
What is the reflex arc?
When a signal is sent from a sensory organ to the spinal cord which passes information, the brain doesn't interfere.
Sara's knee is hit with a rubber mallet and his leg kicks out what caused this to happen?
reflex arc
The two divisions of the Peripheral Nervous System
What are the autonomic nervous system and somatic nervous system
I touch a hot plate and flinch, what pathway am I using?
Sensory pathway
What is the function of the peripheral nervous system?
connect the central nervous system (CNS) to the rest of the body
What are the neurons that participate during the motor pathway?
Sensory neurons (“afferent”) and Motor neurons (“efferent”)
Tim falls during football practice and damages his cerebellum what nervous system would this affect?
Somatic nervous system
When a signal is sent from the sensory organ directly to the spinal cord, bypassing the brain
Reflex arc
When you were younger you got bitten by a dog, and you were scared of dogs. As of now, you have a dog of your own and you are no longer scared. What allows this to happen?
neuroplasticity
What is the reflex arc?
When you react before the brain can interfere.
Example: Jonsi smells smoke with hints of nicotine and his first thought is to perceive that someone is smoking in the building and is a threat. What pathway is this and explain the pathway?
This is the sensory pathway. This pathway is part of the peripheral nervous system and signals from sensory receptors to the brain to process. (outside to inside)