Term
| What does the nervous system do? |
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Definition
| mediates communication between different parts of the body and the body's interaction with the environment. |
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Term
The brain and spinal cord are part of the ______ NS. The nerves that lie outside the _______ NS are in the ________ NS. |
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Definition
1.Central 2.Central 3.Peripheral |
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Term
| What are nerve cells called? |
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Definition
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Term
| Neurons connect body organs to the ______ center. |
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Definition
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Term
| What are the little tail like things that branch out of a neuron called?(hint, these things pick up the impulse) |
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Definition
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Term
| What are the 3 types of neurons? |
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Definition
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Term
| What is the job of each of the 3 neurons? |
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Definition
Sensory-picks up information Inter-receives information and sends to motor Motor-relays message causing muscles to move |
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Term
| What is the normal pathway between the 3 neurons? What are the 2 irregular pathways? When will these irregularities happen? |
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Definition
1.Sensory-Inter-Motor 2.Sensory-Motor 3.Sensory-Spine-Motor 4.During a reflex |
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Term
| In a neuron, what does the mylin sheath do? |
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Definition
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Term
| When the pulse jumps between 2 myelin sheaths, it lands in the? |
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Definition
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Term
| The transmission of a signal along the axon is called? |
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Definition
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Term
When at rest, the neuron is more postive or negative? *(possible e/c question, what is the number of negativity?) |
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Definition
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Term
| The neuron, when at rest, is more negative on the inside or outside? |
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Definition
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Term
What makes the charge mostly positive? How positive is it? |
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Definition
when sodium enters a cell when an electrochemical signal is sent through. 40 |
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Term
| Once the impulse dies down, what goes out of the cell making it negative? |
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Definition
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Term
| What 2 things bring the cell's potassium/sodium to normal? |
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Definition
sodium/potassium pump ion channels |
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Term
| What helps nerve impulses cross the synapse? |
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Definition
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Term
The area before the synapse is called? The area after the synapse is called? |
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Definition
1.presynaptic membrane 2.postsynaptic membrane |
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Term
| Neurotransmitters are released when? |
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Definition
| action potential hits presynaptic membrane. |
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Term
| What can alter the release of neurotransmitters? |
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Definition
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Term
| The endocrine system is composed of ______ which secrete ________. |
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Definition
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Term
| In the endocrine system, material is carried through the ______ to ________ throughout the body. |
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Definition
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Term
| All _____ and ______ are influenced by hormones. |
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Definition
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Term
| The NS is composed of _______ while the ES is composed of ______. |
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Definition
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Term
| How are the NS and the ES different in delivery? |
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Definition
NS-nerve impulse/neurotransmitters ES-hormones |
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Term
| How are the NS and ES different in how they are delivered? |
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Definition
NS-Axons and synapse ES-bloodtream |
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Term
| How are the targets different in the ES and NS? |
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Definition
ES-cells througout body NS-muscles and glands |
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Term
| How are the NS and ES different in their response? |
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Definition
NS-rapid,short lived ES-slow,long-lasting |
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Term
| The NS and ES are controlled by ________ feedback |
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Definition
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Term
Sensory receptors are found where? What do they do? |
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Definition
tissues and organs test body temp, ph, glucose levels etc |
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Term
| When there is deviation, the sensory receprots sen message to an? |
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Definition
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Term
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Definition
| an organ that can bring about a change in the internal condition. |
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Term
| What is the main integrator in animals? |
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Definition
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Term
| The integrator signals the ________ to make the change. |
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Definition
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Term
| The _______ feedback loop controls how the ES and NS are _________ and ___________. |
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Definition
1.negative 2.activated 3.deactivated |
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Term
| Basically, the negative feedback loop turns __ and ___ a mechanism to keep body at ____________. |
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Definition
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Term
| What hormone is used as an example of the negative feeback loop? |
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Definition
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