Neural Cells in the Nervous System Quiz

What is the main function of microglia in the brain?

Phagocytizing cellular wastes and pathogens

Which type of neuroglia surrounds all axons of neurons in the peripheral nervous system?

Schwann cells

What is the primary function of ependymal cells in the central nervous system?

Producing and circulating cerebrospinal fluid

In the peripheral nervous system, what do satellite cells support within ganglia?

Cell bodies of neurons Signup and view all the answers

What is the function of Schwann cells in relation to axons in the peripheral nervous system?

Creating a myelin sheath around most axons Signup and view all the answers

What is the characteristic feature of skeletal muscle that makes it different from cardiac and smooth muscle?

'Stripy' appearance due to actin and myosin filaments Signup and view all the answers

What is the primary function of myelin sheath in the nervous system?

To speed up transmission of action potentials along the axon Signup and view all the answers

Which type of cells create the 'blood-brain barrier' in the nervous system?

Astrocytes Signup and view all the answers

What is the primary composition of 'white matter' in the nervous system?

Myelinated axons Signup and view all the answers

Which neuroglia cell type is responsible for forming myelin sheath around axons in the CNS?

Oligodendrocytes Signup and view all the answers

What is the main role of ependymal cells in the nervous system?

Line the cerebral ventricles and spinal cord central canal Signup and view all the answers

What is the main function of the blood-brain barrier?

Prevents harmful substances from entering the brain Signup and view all the answers

Which of the following is responsible for the formation of the myelin sheath around axons?

Oligodendrocytes Signup and view all the answers

What is the primary function of white matter in the brain?

Insulating and increasing the speed of nerve impulse conduction Signup and view all the answers

Which of the following is NOT a structural component of a neuron?

Schwann cell Signup and view all the answers

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

Phagocytosis and immune defense Signup and view all the answers

In terms of structure, what differentiates gray matter from white matter in the brain?

Presence of cell bodies and dendrites Signup and view all the answers