Anatomy of the Nervous System
50 questions available
Questions
What are the two major regions that constitute the central nervous system (CNS)?
View answer and explanationBased on the anatomical divisions of the nervous system, how is the peripheral nervous system (PNS) defined?
View answer and explanationWhat are the predominant components of gray matter within nervous system structures?
View answer and explanationWhat is the primary reason that white matter in the nervous system appears white?
View answer and explanationIn the terminology of the nervous system, what is a localized collection of neuron cell bodies referred to as in the Central Nervous System (CNS)?
View answer and explanationWhat is the term for a bundle of axons found within the Peripheral Nervous System (PNS)?
View answer and explanationWhich of the following is the middle layer of the meninges that protect the brain and spinal cord?
View answer and explanationThe subarachnoid space, which contains cerebrospinal fluid (CSF), is located between which two meningeal layers?
View answer and explanationWhich meningeal layer is described as a tough, fibrous outer covering, with its name derived from the Latin for 'tough mother'?
View answer and explanationWhat is the large separation that divides the cerebrum into the right and left cerebral hemispheres?
View answer and explanationWhat is the primary function of the corpus callosum?
View answer and explanationIn the context of the cerebral cortex, what is the term for a ridge formed by the folding of the tissue?
View answer and explanationWhich lobe of the cerebral cortex is primarily responsible for the initial processing of visual information?
View answer and explanationPlanning and executing motor functions are primary responsibilities of which lobe of the cerebral cortex?
View answer and explanationThe central sulcus is a major landmark on the surface of the brain that separates which two lobes?
View answer and explanationWhat is the primary function of the basal nuclei, which include the caudate, putamen, and globus pallidus?
View answer and explanationWhich region of the diencephalon serves as a major relay station for all sensory information, with the exception of smell, before it reaches the cerebral cortex?
View answer and explanationWhich brain structure is considered the executive region for regulating homeostasis, the autonomic nervous system, and the endocrine system?
View answer and explanationThe brain stem, which connects the brain to the spinal cord, is collectively composed of which three structures?
View answer and explanationWhat is the principal role of the cerebellum in motor control?
View answer and explanationHow many pairs of cranial nerves are attached to the brain?
View answer and explanationWhich cranial nerve is responsible for transmitting the sense of smell?
View answer and explanationWhich of the following cranial nerves is NOT involved in controlling the muscles for eye movement?
View answer and explanationThe trigeminal nerve (CN V) is a mixed nerve responsible for which functions?
View answer and explanationWhich of the following cranial nerves is classified as purely sensory?
View answer and explanationHow many of the twelve cranial nerves are classified as being strictly motor?
View answer and explanationThe Vagus nerve (CN X) is classified as what type of nerve and what is one of its major functions?
View answer and explanationWhat is the approximate length of the spinal cord in an adult?
View answer and explanationWhat is the name of the long bundle of spinal nerves found inferior to the termination of the spinal cord that resembles a horse's tail?
View answer and explanationHow many pairs of spinal nerves extend from the spinal cord?
View answer and explanationHow many pairs of cervical spinal nerves are designated in the human nervous system?
View answer and explanationWhy is a lumbar puncture (spinal tap) for CSF collection typically performed in the lower lumbar region of the vertebral column?
View answer and explanationThe posterior horn of the gray matter in the spinal cord is primarily responsible for which type of function?
View answer and explanationWhere are the cell bodies of sensory neurons that enter the spinal cord located?
View answer and explanationWhat is a nerve plexus?
View answer and explanationThe phrenic nerve, which is crucial for breathing as it innervates the diaphragm, arises from which spinal nerve plexus?
View answer and explanationThe brachial plexus is a network of nerves that primarily gives rise to the nerves that innervate which part of the body?
View answer and explanationThe sciatic nerve, the largest single nerve in the human body, originates from which plexus?
View answer and explanationSpinal nerves from which region of the vertebral column do not form a plexus, but instead form the intercostal nerves?
View answer and explanationThe cervical plexus is formed by the axons from which range of spinal nerves?
View answer and explanationWhich delicate meningeal layer is directly in contact with the surface of the brain, extending into the gyri and sulci?
View answer and explanationThe processing of somatosensation, which includes touch, temperature, and pain, occurs primarily in which lobe of the cerebral cortex?
View answer and explanationAuditory processing and memory formation are major functions associated with which lobe of the cerebral cortex?
View answer and explanationThe basal ganglia are considered a notable exception to nervous system naming conventions because they are a group of what?
View answer and explanationIn total, how many pairs of spinal nerves emerge from the spinal cord?
View answer and explanationWhich cranial nerve is responsible for transmitting sensory information related to hearing and equilibrium?
View answer and explanationThe femoral nerve, which innervates the anterior leg, arises from which nerve plexus?
View answer and explanationAt approximately which vertebral level does the adult spinal cord typically terminate?
View answer and explanationIn the brain, where is the gray matter predominantly located relative to the white matter?
View answer and explanationThe anterior horn of the spinal cord's gray matter contains neurons that are primarily responsible for what function?
View answer and explanation