Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Compare multipolar, bipolar, and pseudounipolar neurons, then connect their shapes to motor output, special senses, or body sensation. You will also separate shape labels from functional labels like sensory neuron, motor neuron, and interneuron.

Use what you learned in the previous lesson to solve real-world problems.

Distinguish gray matter from white matter by what tissue contains: cell bodies, dendrites, and local connections versus bundles of axons and myelin. You will use that difference to predict what kind of processing or communication is happening in a region.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Use the right name for a bundle or cluster depending on whether it sits in the central or peripheral nervous system. You will distinguish nerves from tracts, and ganglia from nuclei, without needing to locate them on a brain map.

Use what you learned in the previous lesson to solve real-world problems.

Look inside a peripheral nerve as a packaged cable: axons, Schwann cells, fascicles, blood vessels, and connective tissue layers. You will see why nerve injury can affect many axons at once.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Compare oligodendrocytes and Schwann cells as the myelin-making cells of the CNS and PNS. You will connect myelin segments and nodes of Ranvier to faster, more reliable long-distance signaling without working through action potential mechanics yet.

Use what you learned in the previous lesson to solve real-world problems.

Reason through how astrocytes help neurons by regulating ions, recycling chemical signals, supporting blood vessels, and responding to injury. You will recognize why these star-shaped glia are active caretakers, not just filler.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Follow microglia as resident immune cells that patrol tissue, clear debris, respond to infection or injury, and help sculpt developing circuits. You will separate helpful cleanup from harmful inflammation.

Use what you learned in the previous lesson to solve real-world problems.

Distinguish ependymal cells lining fluid-filled spaces from satellite glia surrounding neuron cell bodies in peripheral ganglia. You will connect both cell types to protecting and stabilizing local environments.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Compare what Golgi stain and Nissl stain reveal: whole neuron shapes versus dense cell-body patterns. You will use each stain’s strengths to decide what kind of tissue question it can answer.

Use what you learned in the previous lesson to solve real-world problems.

Use marker proteins to identify cell types in mixed nervous tissue. You will connect examples like NeuN, GFAP, Iba1, and MBP to neurons, astrocytes, microglia, and myelin.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Choose between light microscopy, fluorescence or confocal microscopy, and electron microscopy based on the size of the structure you need to see. You will match each tool to cells, labeled proteins, or tiny ultrastructure such as membranes and myelin layers.

Use what you learned in the previous lesson to solve real-world problems.

Trace how injected dyes or viral tracers can label axons and reveal which areas are connected. You will distinguish evidence for a physical pathway from evidence that the pathway is active or important for behavior.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Connect single-cell and single-nucleus RNA sequencing to modern cell classification. You will see how gene-expression clusters can reveal neuron and glia subtypes while still needing anatomical or functional confirmation.

Use what you learned in the previous lesson to solve real-world problems.

Use tissue damage, demyelination, cell loss, and gliosis as clues about what different nervous-system cells do. You will practice making careful inferences from pathology without assuming one observation proves the whole mechanism.

Use what you learned in the previous lesson to solve real-world problems.

Check what you understood with a short quiz.

Review this chapter with practice based on your mistakes.