SSS1353 Quiz April 2025

Which part of the neuron receives information from other neurons?

• Axon

• Terminal bouton

• Dendrite

• Synapse

The axon hillock is crucial because it:

• Connects the spinal cord to the brain.

• Initiates the action potential if threshold is met.

• Produces neurotransmitters.

• Regulates hormone release.

What happens at the terminal bouton?

• Action potentials are absorbed.

• Sensory information is processed.

• Electrical signals are converted to chemical signals.

• Reflexes are generated.

What is the primary function of neurotransmitters?

• To insulate neurons

• To generate voltage at the axon hillock

• To transmit chemical signals across synapses

• To trigger pain receptors in the skin

Which best describes a synapse?

• A neuron’s input zone

• A space between neurons for chemical communication

• A protective sheath around the axon

• A reflex arc for involuntary actions

What is the function of the spinal cord in the nervous system?

• Produces hormones

• Translates thought into movement

• Transmits sensory input to the brain and sends motor commands out

• Controls facial expressions only

The somatic nervous system controls:

• Heart rate and digestion

• Reflexes in glands

• Voluntary muscle movement and sensory input

• Emotional memory

Which best describes the autonomic nervous system?

• Controls voluntary muscles like the biceps

• Activated only during conscious thought

• Manages involuntary functions such as heartbeat and digestion

• Controls only sensory processing

The sympathetic nervous system is responsible for:

• Calming the body after stress

• Increasing digestive activity

• Preparing the body for fight or flight

• Sleep regulation

Which response is associated with parasympathetic activation?

• Increased heart rate

• Pupil dilation

• Decreased muscle tension and increased digestion

• Adrenaline release