BIOL 348 CHAPTER 7 NERVOUS SYSTEM PART 2 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025

BIOL 348 CHAPTER 7 NERVOUS SYSTEM PART 2 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025 2025 EXAM  BIOL 348 CHAPTER 7 NERVOUS SYSTEM PART 2 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025 Cerebrum - CORRECT ANSWER Conscious thought processes, intellectual functions Memory storage and processing Conscious and subconscious regulation of skeletal muscle contractions The larges part of the brain Processes somatic sensory and motor information Controls all conscious thoughts and intellectual functions Cerebellum - CORRECT ANSWER Coordinates complex somatic motor patterns Adjusts output of other somatic motor centers in brain and spinal cord Diencephalon - CORRECT ANSWER Thalamus and Hypothalamus Thalamus - CORRECT ANSWER Relays and processing centers for sensory information Hypothalamus - CORRECT ANSWER Centers controlling emotions, autonomic functions, and hormone production Midbrain - CORRECT ANSWER Processing of visual and auditory data Generation of reflexive somatic motor responses Maintenance of consciousness Pons - CORRECT ANSWER Relays sensory information to cerebellum and thalamus Subconscious somatic and visceral motor centers Medulla oblongata - CORRECT ANSWER Relays sensory information to thalamus and to other portions of the brain stem Autonomic centers for regulation of visceral function (cardiovascular, respiratory, and digestive system activities) Physical protection of the brain - CORRECT ANSWER Bones of the cranium Cranial meninges Cerebrospinal fluid Biochemical Isolation - CORRECT ANSWER Blood-brain Barrier Cranial Meninges - CORRECT ANSWER Three layers 1. Dura matter 2. Arachnoid mater 3. Pia matter Continuous with spinal meninges Protect the brain from cranial trauma Cerebrospinal fluid (CSF) - CORRECT ANSWER Surrounds all exposed surfaces of CNS Interchanges with interstitial fluid of brain Functions of CSF - CORRECT ANSWER Cushions delicate neural structures Supports brain Transports nutrients, chemical messengers, and waste products Blood-Brain Barrier (BBB) - CORRECT ANSWER Isolates CNS neural tissue from general circulation Formed by network of tight junctions Lipid-soluble compounds diffuse across -O2, CO2, steroids, and prostaglandins Summary of protection and support - CORRECT ANSWER Meninges stabilize brain in cranial activity CSF - Protects against sudden movement - Provides nutrients and removes wastes Blood-brain barrier - Selectively isolate brain from chemicals in blood that might disrupt neural function Gray Matter - CORRECT ANSWER In cerebral cortex and basal nuclei White matter - CORRECT ANSWER Deep to basal cortex Around basal nuclei Structures of the Cerebrum - CORRECT ANSWER Gyri of neural cortex Insula Longitudinal Fissure Lobes Central sulcus Lateral sulcus Parieto-occipital sulcus Gyri of neural cortex - CORRECT ANSWER Increase surface area (number of cortical neurons) Insula - CORRECT ANSWER Lies medial to lateral sulcus