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What do impulses that move down the T tubules most directly cause?
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Do nerve impulses travel down the internodal pathways from the av node?
no
How do changes in temperature cause rocks to break down?
It breaks down the rocks
Can a tsunami cause the sea surface to go down?
Yes
Why does UV light cause cancer?
UV light cause cancer. It is because it can penetrate deep down into the skin.
What are axons that conduct impulses from the cerebrum to lower parts of the CNS?
Axons that conduct impulses from the cerebrum to lower parts of the central nervous system (CNS) are called descending axons. These axons transmit motor commands and information from the brain down to the spinal cord and other lower regions of the CNS. They play a crucial role in controlling voluntary movement and coordinating various bodily functions.
How do the nerve impulses get from the sarcolemma plasmalemma into the individual muscle fiber?
Nerve impulses travel down from the neuron and cause ACh to be released at the axon terminal. If enough Ach binds to the receptors on the plasmalemma the action potential is tranmitted through the whole muscle fiber because Na+ enters the cell and depolarize it. The action potential travels along the T-tubules. These transmit it to the Sarcoplasmatic Reticulum which releases Ca2+ into the muscle fiber (as do the T-tubules themselves). The Ca2+ frees the bindingsite for myosin on actin so that contraction can occur.
What is the function of the tubules?
See this link for nice details...http://people.eku.edu/ritchisong/301notes3.htm In muscle contraction the transverse tubules transmit the muscle impulse into the inner cell.
What do action potentials travel down to cause muscle contraction?
Axon of neuron, sarcolemma, and T-tubules.
What effect will multiple sclerosis a degenerative disorder that cause myelin to disintegrate have on a person's nerve impulses?
They will slow down
What lobe has impulses traveling down the cranial nerve 2?
impulses travel down cranial nerve 2 to what lobe
The action potential is conducted into a skeletal muscle fiber by?
neuromuscular junctions Action potentials conduct down T tubules into skeletal muscles
Saltatory conduction refers to the conduction of impulses in?
It is the "skipping" pattern that impulses follow to travel down nerve axons.
What is electroneurography?
The measurement of the speed of conduction of impulses down a peripheral nerve.
What is epilepsy and why is dilantin useful in treating it?
it slows down brain impulses
Do nerve impulses travel down the internodal pathways from the av node?
no
Is there nervous tissue in the respiratory system?
Neural impulses cause diaphragm and chest cage to move down wards and outwards respectively so that air can move into lungs Cough reflex is mediated by nerve impulses/reflexes
What are located in the retina and convert the upside down image into electrical impulses?
Cornea
