NEW
Font size
WorksheetsReview nerve cells
Total questions: 20
Worksheet time: 10mins
Neurones are adapted to carry out electrochemical charges called...
impulses
neurotransmitters
synapses
voltages
Each cell body contains a
flagellum
nucleus
vacuole
stroma
A neurone's cell body contains large amounts of _______ which is used in the production of proteins and neurotransmitters.
mitochondria
rough endoplasmic reticulum
smooth endoplasmic reticulum
centrioles
Extending from the cell body is one long fibre called a(n) _______ and smaller branched fibres called __________.
axon, dendrites
dendrites, axon
axon, polar bodies
Schwann cell, myelin sheath
Axons are surrounded by _______________ , which protect and provide _____________ , because their membranes are rich in a lipid known as _______________.
glial cells, defense, adipose
channel proteins, structure, phospholipid
cytoskeleton, insulation, phospholipid
Schwann cells, insulation, myelin
Neurones that carry nerve impulses to an effector are called...
bipolar neurone
intermediate neurone
motor neurone
sensory neurone
Neurones that carry nerve impulses from a receptor are called...
bipolar neurone
intermediate neurone
motor neurone
sensory neurone
Neurones that link two other neurones and usually found in the central nervous system are called...
bipolar neurone
intermediate neurone
motor neurone
sensory neurone
Which statement is false about myelinated neurones?
They conduct impulses faster than unmyelinated neurones.
They allow for action potentials to jump from one node of Ranvier to the next.
They allow for saltatory conduction.
They have Schwann cells wrapped around their dendrites providing myelin between each coil.
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 side of the synapse contains neurotransmitters?
presynaptic
postsynaptic
both
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
main transmitter substances in vertebrate nervous system
acetyl choline
noradrenalin
Both
None of the above
What is a nerve impulse?
Your body's reaction to a certain event.
An electric signal that passes through neurons.
A message passed through the blood.
Electrical signal created in the brain.
Which structure speeds up the transmission of electrical impulses along the axon?
Fatty sheath
Dendrites
Axon terminals
At the synapse, what do the vesicles release that send nerve impulses from one neuron to another?
Nerve impulse
Electrotransmitters
Neurotransmitters
Deoxyribonucleic acid
By which transport process do neurotransmitter molecules move across the synapse?
Osmosis
Active transport
Diffusion
What is the purpose of synapses?
To stop two neurons from touching each other
To allow two neurons to interact with each other
To ensure nerve impulses travel in one direction
To stop neurons from communicating with each other
Did you enjoy the class on nerve cells?
Yes
No
I was too tired to care
I was absent
