Which part of a neuron receives incoming signals from other cells and carries them toward the cell body?

A single long process carries impulses away from the soma toward other neurons, muscles, or glands. What part is doing this job?

Where are the nucleus and most of a neuron's organelles housed?

The trigger zone near the soma sums incoming signals and starts an impulse if threshold is reached. Which neuron part is it?

A branch at the far end of a neuron releases chemical messengers into a small gap. Which part performs that job?

The tiny gap between one neuron's ending and the next cell is the site where chemical signals cross. What is that gap called?

Signals on these short branches are graded potentials that fade with distance, not all-or-none impulses. Which neuron part is it?

Which part of a neuron contains Nissl bodies, clusters of rough endoplasmic reticulum that make proteins for the cell?

At the end of a conducting fiber, small swellings store vesicles filled with chemical messengers. Which part contains those vesicles?

Which surface extension increases the area on a receiving branch for synaptic contacts?

A cell body lies in a dorsal root ganglion, and the impulse travels from skin receptors into the spinal cord. What type of neuron is it?

A cell body sits in the spinal cord, and its fiber carries an impulse out to a skeletal muscle. What type of neuron is it?

A neuron lies entirely within the brain and links one nerve cell to another during processing. What type is it?

A neuron carries information from a stretch receptor in a tendon toward the spinal cord. Which type matches that direction?

A neuron sends commands from the brainstem to a gland. Which type is identified by that outward conduction from the CNS?

A short neuron in the spinal gray matter receives input from an afferent cell and passes it to an efferent cell. What type is it?

Which central supporting cell wraps axons in the brain and spinal cord to form insulating layers?

Which central supporting cell helps form the blood-brain barrier and regulates the chemical environment around neurons?

Which central supporting cell acts as a resident immune cell by removing debris and pathogens?

Which central supporting cell lines the ventricles and helps move cerebrospinal fluid?

Which peripheral supporting cell forms an insulating covering around one segment of a single axon?

Which peripheral supporting cell surrounds neuron cell bodies in ganglia and helps control their chemical environment?

After injury in a peripheral nerve, which supporting cell can help guide regrowth of a damaged fiber?

Which central supporting cell anchors neurons to nearby capillaries and helps keep extracellular ion levels stable?

Which central supporting cell can insulate parts of several different axons at the same time?

Which central supporting cell is most directly responsible for phagocytosing dead cells after nervous tissue damage?

What fatty insulating covering increases the speed of impulse conduction along many axons?

An impulse jumps from one exposed gap to the next along an insulated axon. What are those gaps called?

What type of conduction occurs when an impulse appears to leap between exposed gaps along an insulated fiber?

If the insulating covering around an axon is lost, what is the most direct effect on impulse travel?