Nerve Tissue

Front

What is the function of Schwann Cells in the nervous system?

Back

Schwann Cells produce the myelin sheath that insulates axons in the peripheral nervous system, facilitating faster nerve impulse transmission.

Front

What is a synapse?

Back

A synapse is the tiny gap between neurons where nerve impulses are transmitted from one neuron to another, allowing communication between an axon and a dendrite.

Front

What are terminal branches in a neuron?

Back

Terminal branches are the endings of an axon that release neurotransmitters to communicate with other neurons.

Front

What is the autonomic nervous system?

Back

The autonomic nervous system is a division of the peripheral nervous system that controls involuntary bodily functions, including heart rate and digestion.

Front

What are myelin-covered segments of the axon called?

Back

Myelin-covered segments of the axon are called internodes, which help speed up the transmission of nerve impulses.

Front

What is the role of the myelin sheath?

Back

The myelin sheath insulates axons and increases the speed of electrical impulses along the nerve cells.

Front

What are microglia?

Back

Microglia are a type of glial cell in the central nervous system that act as the main form of immune defense.

Front

What is the difference between the somatic and autonomic nervous systems?

Back

The somatic nervous system controls voluntary movements, while the autonomic nervous system regulates involuntary functions.

Front

What is the function of astrocytes?

Back

Astrocytes support and protect neurons, maintain the blood-brain barrier, and regulate blood flow in the brain.

Front

What is the Node of Ranvier?

Back

The Node of Ranvier is a gap in the myelin sheath of an axon that facilitates rapid conduction of nerve impulses.