Nervous Tissue

What structure makes up the outer gray matter of the cerebrum?

• A. Corpus callosum

• B. Cerebral cortex

• C. Thalamus

• D. Medulla oblongata

Which part of the spinal cord contains motor neuron cell bodies?

• A. Dorsal horn

• B. Central canal

• C. Ventral horn

• D. Dorsal root ganglion

What is the primary role of gray matter in the central nervous system?

• A. To conduct electrical impulses

• B. To store calcium

• C. To process and integrate information

• D. To produce cerebrospinal fluid

Which of the following is a function of astrocytes?

• A. Engulf pathogens

• B. Produce cerebrospinal fluid

• C. Support blood-brain barrier and recycle neurotransmitters

• D. Myelinate axons in the PNS

Which glial cells produce the myelin sheath in the CNS?

• A. Schwann cells

• B. Satellite cells

• C. Oligodendrocytes

• D. Microglia

What is the function of the axon terminal in a neuron?

• A. Receive signals

• B. Integrate inputs

• C) Generate action potentials

• D) Transmit signals to the next neuron or effector

Which type of neuron has a single process that splits into central and peripheral branches?

• A. Multipolar

• B. Bipolar

• C. Unipolar (pseudounipolar)

• D. Anaxonic

Which type of glial cell acts as a phagocyte in the CNS?

• A. Astrocyte

• B. Microglia

• C. Ependymal cell

• D. Oligodendrocyte

What part of the neuron contains Nissl bodies and the nucleus?

• A. Axon

• B. Dendrites

• C) Axon Terminal

• D) Cell body

Which of the following describes the white matter of the CNS?

• A) Composed of myelinated axons

• B. Made of neuron cell bodies

• C) Rich in dendrites and synapses

• D. Located only in the brainstem