Nervous system

In which two parts is divided de nervous system?

• Simpathetic and Parasympathetic

• Central and Peripheral

• Autonomous and somatic

• Sensitive and motor

What are the two main structures in the CNS?

• Brain and cerebellum

• Brain and spinal cord

• Brain and nerves

• Nerves and ganglions

Humans only use 10% of its brain capacity. People with a higher IQ use a bigger part.

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Which is the function for cerebellum

• It controls blood pressure

• It coordinates balance and coordinates movements

• It maintains the body temperature stable.

• It directs voluntary movements and secretes hormones.

Which part of the nervous system takes care of the internal body functions such as digestion and heart rate?

• Peripheral nervous system

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

What type of cells from the nervous system help maintaining homeostasis between nervous system cells?

• Glial cells

• Mastocytes

• Blood cells

• Neurons

In which image can we see a neuron's dendrites marked with an arrow?

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In which image can we see a neuron's axon marked with an arrow?

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What happens during depolarization in the neuron?

• The neurons interior becomes more negative.

• Sodium channels open and sodium enters into the cell.

• Potassium channels open and potassium exits the neuron.

• The neuron is at rest.

What happens in the synaptic space between two neurons?

• The ionic channels close.

• An action potential is produced.

• Neurotransmitters are released

• Depolarization occurs.