Major Structures of Nervous Tissue and Nervous System

What is the main function of ganglia in the nervous system?

Transmit nerve impulses

Which structure is responsible for regulating the digestive system?

Enteric plexus

How many pairs of spinal nerves emerge from the spinal cord?

31 pairs

What is the basic unit of the nervous system responsible for communication?

Neurons Signup and view all the answers

Where are sensory receptors primarily located?

External or internal environment Signup and view all the answers

How many neurons are typically found in the human brain?

100 billion neurons Signup and view all the answers

What is the main responsibility of neurons in the nervous system?

Controlling muscle activity Signup and view all the answers

What is the function of synaptic vesicles in a neuron's synapse?

Store chemical neurotransmitter Signup and view all the answers

What is the purpose of slow axonal transport in neurons?

Supply new axoplasm for developing or regenerating axons Signup and view all the answers

What is the role of lipofuscin in neurons?

A product of neuronal lysosomes that accumulates as the neuron ages Signup and view all the answers

Which component of the synapse separates the presynaptic and postsynaptic membranes?

Synaptic cleft Signup and view all the answers

What is the primary purpose of varicosities in neurons?

Contain synaptic vesicles for neurotransmitter release Signup and view all the answers

What is the main function of motor neurons?

Carrying information out of the brain and spinal cord to effectors Signup and view all the answers

Which structure in a neuron is responsible for producing proteins used in regenerating damaged axons?

Nissl bodies Signup and view all the answers

What is the primary function of sensory neurons?

Carrying sensory information into the brain and spinal cord Signup and view all the answers

Which type of neurons are responsible for integration processes?

Interneurons Signup and view all the answers

What is the function of fast axonal transport in neurons?

Moving organelles and materials in both directions along microtubules Signup and view all the answers

Which part of a neuron contains the nucleus, neuroplasm, and Nissl bodies?

Cell body Signup and view all the answers

What is the function of Golgi cells in the cerebellar cortex?

Enhancing responsiveness to stimuli Signup and view all the answers

Which layer of the cerebellum contains Purkinje cells?

Molecular layer Signup and view all the answers

What is the primary function of basket cells in neural circuits?

Making inhibitory synapses Signup and view all the answers

Which type of neurons relay information from the rest of the central nervous system to the entire cerebellar cortex?

Granular cells Signup and view all the answers

What is the main role of stellate cells in the activated cerebellum?

Controlling blood flow Signup and view all the answers

Which part of the brain manages and processes information from the senses?

Cerebrum Signup and view all the answers

What is the main difference between how oligodendrocytes and Schwann cells myelinate axons?

Oligodendrocytes myelinate many axons, while Schwann cells myelinate a single axon Signup and view all the answers