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WorksheetsCOORDINATION
Total questions: 20
Worksheet time: 15mins
Chemicals released into a cleft when an action potential reaches the terminal are called.....
ligand gated ion channels
synaptic vesicles
neurotransmitters
voltage gated ion channels
Which pattern shows how signals are transmitted from the presynaptic neuron to the post synaptic neuron
electrical --> electrical
electrical --> chemical
chemical --> electrical --> chemical
electrical --> chemical --> electrical
What causes the release of neurotransmitters into the cleft?
an action potential reaches the terminal
ligand gated ion channels open
excititory neurotransmitters bind to ligand gated ion channels
an action potential on the post synaptic neuron triggers nearby voltage gated ion channels
What chemical is activated by the action potential in the presynaptic neuron that causes the vesicles containing neurotranmitters to move toward the synaptic cleft?
calcium
potassium
sodium
phosphorus
The action potential arrives at the ____ and depolarizes the ____ membrane.
Axon terminal, pre-synaptic
Axon terminal, post synaptic
pre-synaptic, axon terminal
post synaptic, axon terminal
What is the response in the postsynaptic cell once the acetylcholine has bound to it?
In opens the Na+ gated channels and Na+ rush in
It opens the Ca2+ gated channels and Ca2+ rush in
It closes the K+ channels creating a resting potential
It releases its own neurotransmitter into the synaptic cleft
Produces the hormone insulin and glucagon, which controls the level of glucose in the blood.
Thyroid Gland
Pancreas
Thymus Gland
Pituitary Gland
These release testosterone, which controls changes in a male's body and regulates sperm production.
Ovaries
Target Cells
Parathyroids
Testes
What type of product is secreted by endocrine glands?
Sweat
Hormones
Saliva
Tears
