Hondros College

Hondros College Bio 253 exam with complete
solutions
Dendrite - ANSCarries the impulse towards the nucleus

Synaptic knob - ANSThe part of a neuron comes in close proximity to another neuron at
the synapse

Microglia - ANSThe phagocytosis cells in the CNS

Sensory - ANSThe following belong together except which one? Multipolar, motor,
sensory, efferent

Ganglia - ANSWhere can the nucleus of a sensory neuron can be found within?

Afferent - ANSGross nerves that contain sensory impulses are referred to as what?

Spinal Nerves - ANSThe PNS is comprised of cranial nerves and what?

Sensory Neurons - ANSWhat are the cells that conduct messages towards the brain
are?

Neuron - ANSWhich of these cells does NOT belong with the others? Microglia, neuron,
astrocyte, oligodendrocyte

Microglia - ANSThe cells that are capable of removing a blood clot from the brain

Outside is positive - ANSWhen a neuron is at rest

Astrocyte - ANSThe cells provide a means of acquiring nutrients in the brain

-70 mV - ANSThe resting potential of a neuron

Node to Node - ANSSaltatory conduction occurs when an impulse jumps from