3.02 Neurons & Spinal Reflexes

What is the function of dendrites?

• Receives information from communicating neurons

• Controls metabolism and maintenance of the neuron

• Contains genetic material for cell development

• Propagates information from soma to communicating neuron

Which part of the neuron is responsible for propagating information?

• Dendrites

• Cell body / Soma

• Axon

• Nodes of Ranvier

What is the main function of the myelin sheath?

• Receives information from communicating neurons

• Controls metabolism and maintenance of the neuron

• Protects and insulates axons, enhancing transmission of electrical impulses

• Propagates information from soma to communicating neuron

Which cells produce myelin in the peripheral nervous system?

• Dendrites

• Schwann Cells

• Axon Terminal

• Nodes of Ranvier

What is the function of axon terminals?

• Receives information from communicating neurons

• Controls metabolism and maintenance of the neuron

• Transmits information across the synapse to the next neuron

• Propagates information from soma to communicating neuron

What is a reflex?

• A conscious response to a stimulus

• An automatic response to a stimulus

• A planned sequence of actions

• A slow response to a stimulus

What is a spinal reflex?

• A reflex that involves the brain

• A reflex that occurs within the spinal cord

• A reflex that requires conscious thought

• A reflex that enhances safety and survival

What is a monosynaptic reflex arc?

• A reflex arc with only one synapse

• A reflex arc with multiple synapses

• A reflex arc that involves the brain

• A reflex arc that enhances safety and survival

What do sensory neurons do?

• Carry sensory information from the body to the CNS

• Transmit information between motor and sensory neurons

• Communicate messages from the CNS to the muscles

• Activate effectors to perform actions

What are the main components of a spinal reflex arc?

• Receptor, sensory afferent neurons, integration centre, motor neuron, effectors

• Receptor, motor neuron, sensory afferent neurons, integration centre, effectors

• Motor neuron, receptor, sensory afferent neurons, integration centre, effectors

• Integration centre, receptor, sensory afferent neurons, motor neuron, effectors