Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Nervous System_16

The Nervous System has over 100 Billion nerve cells (neurons) operating constant

QuestionAnswer
Nerve Cells(Neurons) Macroscopic bundles of nerves that carry electrical messages all over the body.
Acetycholine Neurotransmitter chemical released at the end of the nerve cells. It activates cell membranes of nerve cells in order to release a nervous impulse.
Receptors Receptors receive nervous impulses and transmit them to the nerve cells in the brain and spinal cord, in which the impulses are recognized interpreted and relayed to other cells in the different parts of the body.
Central Nervous System (CNS) Consists of the brain and spinal cord.
Peripheral Nervous System (PNV) Consists of cranial and spinal nerves, plexuses and peripheral nerves. There are 12 pairs of cranial nerves and 31 pairs of spinal nerves.
Cranial Nerves These nerves carry nervous impulses between the brain, head and neck. There are 12 cranial nerves. The tenth nerve, aka vagus nerve, carries messages to and from the chest and abdomen as well.
Plexus(es) Large network of nerves in the Peripheral Nervous System (PNV).
Spinal and Cranial Nerves Composition of nerves that help the body respond to outside changes in the world. These nerves include receptors for all senses; sight, hearing, smell(olfactory) and touch.
Sensory (Afferent) Nerves Carry Messages related to outside changes toward the spinal cord/brain. When you touch a hot stove its the afferent nerves that are stimulated and carry the message to your spinal cord and brain.
Motor (Efferent) Nerves Carry messages from the spinal cord and brain telling the muscles in your body how to respond. After you touch the hot stove your efferent nerves send the message leaving your brain/spinal cord telling your muscles to pull your hand from the stove.
Autonomic Nervous System (ANV) A large group of nerves that function automatically/involuntary. These nerves carry impulses from your CNS to your glands, heart, blood vessels, involuntary muscles in the walls of your intestines, stomach and bladder.
Sympathetic Nerves (part of ANV) Stimulate the body in times of stress and crisis. These nerves increase heart rate, dilate your pupils, relax airways increase blood pressure, stimulate the adrenal glands to secrete adrenaline and slows digestion.
Parasympathetic (part of ANV) These nerves are a balance for the sympathetic nerves. They slow down your heart rate, lower blood pressure, stimulate intestinal contractions to clear your rectum, stimulate saliva, decrease breathing, stimulate digestion and contract your bladder.
Created by: estacia22
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards