PSB Exam 3 2023 Study Guide (81 Questions with Complete Solutions)

PSB Exam 3 2023 Study Guide (81 Questions with Complete Solutions) How many distinct layers are observed in the human cortex? - CORRECT ANSWER 6 layers The ventricular system contains - CORRECT ANSWER -cerebrospinal fluid (CSF) -Lateral ventricle -third ventricle -fourth ventricle ventricular system - CORRECT ANSWER a system of fluid-filled cavities inside the brain lateral ventricle - CORRECT ANSWER -a complex C-shaped lateral portion of the ventricular system within each hemisphere of the brain -lined with choroid plexus -sends CSF to third ventricle choroid plexus - CORRECT ANSWER produces CSF by filtering blood third ventricle - CORRECT ANSWER -The midline ventricle that conducts cerebrospinal fluid from the lateral ventricles to the fourth ventricle. -receives CSF from the lateral ventricle fourth ventricle - CORRECT ANSWER -the passageway within the pons that receives cerebrospinal fluid from the third ventricle and releases it to surround the brain and spinal cord -lies between the cerebellum and pons The _______ lobe is the most anterior portion of the cerebral cortex. - CORRECT ANSWER frontal lobe The _______ is the main source of communication between the left and the right hemispheres. - CORRECT ANSWER corpus callosum Almost all incoming sensory information passes through the _______, which sends the information on to the overlying cortex. - CORRECT ANSWER thalamus thalamus - CORRECT ANSWER -brain's traffic cop -directs virtually all incoming sensory information to the appropriate regions of the cortex for further processing, and receiving instructions back from the cortex about which sensory information is to be transmitted Neurons in layer ______ of the cerebral cortex typically receive input from the thalamus. - CORRECT ANSWER Layer IV Layer I-III - CORRECT ANSWER intracortical association Layer V - CORRECT ANSWER subcortical outputs, except for the thalamus Layer VI - CORRECT ANSWER -output to thalamus -output to LGN