Ortrga Unit 6

What is Synapse ?

• Releases from the axon of the previous neuron

• A gap between the axon of the neuron & dendrite

• Releases a neuron transmitter that tells the muscle how to react

• Sends impulse straight to the motor neuron

What are the functions of the Nervous System ?

• Monitor the body’s internal & external environment

• Integrate information from each of the sense

• Coordinate voluntary & involuntary muscles, & organ function

• Regulates involuntary smooth & cardiac muscle as well as glands

The Neural Tissue includes

Answer explanation

9

What does the sensory neurons do ?

• Carry signals from the central nervous system to muscles or organs

• Connect neurons to other neurons

• Receive information from the sensory neurons of the peripheral nervous system

• A thin covering around the entire axon

Sensory neuron picks up a

(a)  

What are the steps of Reflex Arc ?

• Sensory Neuron - picks up a stimulus

• Axon - sends stimulus through the neuron to the info the interneuron

• Interneuron - sends impulse straight to motor neuron

• Motor Neuron - released a neuron transmitter that tells muscles how to react

What does the Central Nervous System include ?

• Spinal Cord

• Muscles

• Brain

• Brain & Spinal Cord

Integrates sensory information

(a)  

The first layer of the protection are the flat bones of the skull

(a)  

The Cerebrum

• Contains the vision center

• Contains neuron cells bodies

• Controlling conscious thought, complex movements, & memory

• Coordinates & regulates muscular activity