What is a ganglion?

This tutorial by Nicole from Kenhub explains ganglia, clusters of nerve cell bodies in the peripheral nervous system (PNS). It covers the division of the nervous system into the central nervous system (CNS) and PNS, and details the types of ganglia: sensory and autonomic. Sensory ganglia transmit sensory information to the CNS, while autonomic ganglia are involved in involuntary motor control. The tutorial also touches on basal ganglia, which are involved in motor function and cognition, and pseudoganglia, which resemble ganglia but are not true ganglia.

What is the primary difference between a nucleus and a ganglion?

• A nucleus is found in the PNS, while a ganglion is in the CNS.

• A nucleus is involved in voluntary movement, while a ganglion is not.

• A nucleus contains only sensory neurons, while a ganglion contains motor neurons.

• A nucleus is a cluster of nerve cell bodies in the CNS, while a ganglion is in the PNS.

Which system is responsible for controlling voluntary movements?

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

• Peripheral nervous system

What type of information do sensory ganglia primarily handle?

• Motor information

• Autonomic information

• Sensory information

• Cognitive information

Where are dorsal root ganglia located?

• In the cerebral cortex

• In the brain stem

• On the ventral root of a spinal nerve

• On the dorsal root of a spinal nerve

Which cranial nerve ganglion is also known as Scarpa's ganglion?

• Vestibulocochlear ganglion

• Geniculate ganglion

• Glossopharyngeal ganglion

• Trigeminal ganglion

What is the role of sympathetic ganglia in the autonomic nervous system?

• They transmit sensory information to the brain.

• They release adrenaline into the bloodstream.

• They control voluntary muscle movements.

• They are involved in cognitive functions.

What is a pseudoganglion?

• A type of basal ganglia

• A real ganglion found in the CNS

• A thickened nerve trunk that appears as a ganglion

• A cluster of nerve cell bodies in the PNS