WGU C107 Module 17 The Central Nervous System(graded A+)

WGU C107 Module 17 The Central Nervous System(graded A+)What are gyri and sulci? Depressions and ridges of the brain folds. - Depressions are sulci, and gyri are ridges. What separates the hemispheres of the cerebrum? The longitudinal fissure Which is NOT a major structure of the brain? Frontbrain - There is a region of the brain called the forebrain, and there is a frontal cortex of the cerebrum, but there is no frontbrain. Location 1: The cerebrum - The large superior structure is the cerebrum. Location 2: The forebrain - The forebrain is above the brainstem. Location 3: The cerebellum - The cerebellum is part of the hindbrain. Location 4: The medulla oblongata - The increased size of the brainstem is the medulla oblongata. Location 5: The spinal cord - The spinal cord runs inferiorly from the brain. What is the most dorsal region of the entire brain (back of the head)? The cerebrum What is the most ventral region of the entire brain (front of the head)? The cerebrum Which of the following meninges are best described by the following? Adheres to the brain. Pia mater - This thin membrane adheres to the brain. Is a spongy web-like structure. Arachnoid mater - The name arachnoid refers to the spiderweb-like appearance. Strong connective tissue close to the skull. Dura mater - The dura mater is the region closest to the skull. Thinnest of the meninges. Pia mater - Pia mater is the thinnest of the meninges that adheres to the brain. Contains cerebrospinal fluid. Subarachnoid space What is the main function of the meninges? Protecting the central nervous system. Which of the following protects the brain from trauma? All of the above - Meninges - Cerebrospinal fluid - The skull Which is NOT a function of the cerebrospinal fluid? Provides lubrication for movement cells in the brain. - Cells within the brain do not move enough to require lubrication. How can cerebrospinal fluid be collected to assess infection in the CNS? Lumbar puncture Which of the following brain regions is NOT part of the brainstem? Forebrain - The forebrain contains the thalamus and hypothalamus. Which of the following brain regions is responsible for movement and contains a motor cortex? The frontal lobe Which of the following brain regions is responsible for hearing and contains the auditory cortex? The temporal lobe Which of the following brain regions contain the thalamus and hypothalamus? The forebrain - These endocrine organs are found in the forebrain. Which of the following brain regions is responsible for cognitive thought? The cerebrum Which of the following brain regions is responsible for involuntary functions? The brainstem Which of the following brain is responsible for regions voluntary motor functions, social judgment and planning? The frontal lobe Which of the following brain regions is responsible for vision and contains the visual cortex? The occipital lobe Which of the following is NOT a vertebral section of the spinal cord? Abdominal Within a segment of the spinal cord, which of the following are true among the available choices? Sensory information enters the spinal cord via the: Posterior horn - Motor sensory information enters through the posterior horn. posterior = afferent = sensory neurons. Within a segment of the spinal cord, which of the following are true among the available choices? Motor information exits the spinal cord via the: Anterior horn - Motor information exits the spinal cord from the anterior horn.