Neurons

Front

What is the nucleus in a neuron?

Back

The nucleus is the control center of the neuron, containing the cell's genetic material and regulating its activities.

Front

What is the cell body of a neuron?

Back

The cell body, or soma, contains the nucleus and organelles, and is responsible for maintaining the neuron's health and function.

Front

What is the function of Schwann cells?

Back

Schwann cells are glial cells that form the myelin sheath around axons in the peripheral nervous system, aiding in faster signal transmission.

Front

What are the characteristics of a bipolar neuron?

Back

Bipolar neurons have two extensions (one axon and one dendrite) and are commonly found in sensory organs, such as the retina.

Front

What is a synaptic cleft?

Back

The synaptic cleft is the small gap between the presynaptic and postsynaptic neurons where neurotransmitters are released and received.

Front

What are neurofibrils?

Back

Neurofibrils are fine, thread-like structures in the cytoplasm of neurons that provide structural support and transport materials.

Front

What are Nissl bodies?

Back

Nissl bodies are clusters of rough endoplasmic reticulum and ribosomes in the neuron, involved in protein synthesis.

Front

What is the role of neurotransmitters?

Back

Neurotransmitters are chemical messengers that transmit signals across the synaptic cleft from one neuron to another.

Front

What is the function of the axon?

Back

The axon is a long, slender projection of a neuron that conducts electrical impulses away from the cell body to other neurons or muscles.

Front

What are dendrites?

Back

Dendrites are branching extensions of a neuron that receive signals from other neurons and transmit them to the cell body.