Nerve cells - DRAFT

What is the primary function of neurons?

• Structural support

• Chemical and electrical communication

• Storage of nutrients

• Transport of oxygen

What is the primary function of glial cells in the nervous system?

• Transmitting nerve impulses

• Forming myelin sheath around axons and providing structural support

• Producing hormones

• Regulating blood flow

Which type of cells in the CNS are responsible for producing cerebrospinal fluid?

• neurons

• dendrocytes

• glial cells

• mesenchymal cells

Which statement is true of cells in the brain?

• There are dozens of types of neurons and glial cells

• Neurons outnumber glial cells 10 to 1

• Glial cells outnumber neurons 10 to 1

• There are 10 types of glial cells, and one type of neuron.

What role do glial cells play in relation to pathogens and dead cells in the CNS?

• Ignoring them

• No role

• Scavenging them

• Replicating them

What is the function of dendrites in a neuron?

• To release neurotransmitters

• To receive and transmit electrical signals

• To protect and insulate axons

• To connect neurons to blood vessels

What part of the neuron is primarily responsible for conducting nerve impulses?

• Cell body

• Dendrite

• Myelin sheath

• Axon

Which part of the neuron is responsible for impulse transmission to an effector?

• Node of Ranvier

• Synaptic terminal

• Myelin sheath

• Nucleus

What is the role of the myelin sheath in a neuron?

• To receive signals

• To generate nerve impulses

• To insulate the axon and speed up impulse transmission

• To connect neurons to each other

What is the primary function of motor neurons?

• Transmit impulses to the CNS

• Convey nerve impulses between various parts of the CNS

• Accept nerve impulses from the CNS and transmit them to muscles or glands

• Accept impulses from sensory receptors