What does CNS and PNS stand for?
Answer: Central Nervous System- consists of the brain and spinal cord and it controls thinking, memory and behavior. All body activities are controlled except chemical functions.
Peripheral Nervous System- Lies outside the brain and spinal cord and serves as a connection of message system between the various organs and muscles of the body and the CNS.
What are the parts of the CNS?
Answer: Brain and Spinal Cord
Describe something that you do on a regular basis that your PNS controls.
Answer: urinating
What are the two divisions of the autonomic nervous system and what does each control?
Answer: Sympathetic – controls the body in times of stress, worry, fear, emergency.
Parasympathetic- brings the body back to a normal state and allows rest and relaxation to occur.
What are the three main types of neurons? What is the function of each?
Answer: Axons- Sends information
Dendrite- Receives information
Cell body- contains nucleus.
What is the function of the axon of a nerve cell? The dendrite?
Answer: Sends information, Dendrite- Receives information
What is a synapse?
Answer: Region between axon of one neuron and dendrite of another.
Neurotransmitters transmit nerve impulses across synapse.
1 comment:
Good job, but you did not do anything with the sketch. Remember that you need to at least label the pics yourself.
Post a Comment