What happens to neurotransmitters after they send a signal?
They are removed from the synapse
What is reuptake?
The neurotransmitter is taken back into the sending neuron
Besides reuptake, how else are neurotransmitters removed?
They can be broken down by enzymes.
Why is recycling neurotransmitters important?
It stops the signal and allows the neuron to reuse them.
What does FSH stand for?
Follicle-Stimulating Hormone.
What does FSH do in females?
Helps eggs mature in the ovaries.
What does FSH do in males?
Helps produce sperm.
What does LH stand for?
Luteinizing Hormone.
What does LH do in females?
Triggers ovulation (release of an egg).
What does LH do in males?
Stimulates testosterone production.
What is the main job of the loop of Henle?
To concentrate urine by reabsorbing water and salts.
What happens in the descending loop?
Water leaves the tubule.
Is the descending loop permeable to salt?
No, mostly only water leaves.
What happens in the ascending loop?
Salt leaves the tubule.
Is the ascending loop permeable to water?
No, water cannot leave.
Big difference between ascending and descending?
Descending = water out
Ascending = salt out
What is a synapse?
The gap between two neurons.
What happens when an impulse reaches the end of a neuron?
Neurotransmitters are released.
Where do neurotransmitters go?
Across the synapse to the next neuron.
What do neurotransmitters do on the next neuron?
Bind to receptors and pass the signal.
What happens after the signal is sent?
Neurotransmitters are removed or recycled.
