The cranial nerves. Central Nervous System - Brain Identify the anatomical location of each major brain area. Describe the functions of the major brain.
Published byModified over 4 years ago
Presentation on theme: "The cranial nerves. Central Nervous System - Brain Identify the anatomical location of each major brain area. Describe the functions of the major brain."— Presentation transcript:
Map this pathway as a simple afferent to CNS to efferent path, naming the neural structures involved: “You feel the desk and move your hand away as soon as you feel the desk.”
Touch receptors Somatic motor nerve to muscle somatosensory cortex to primary motor cortex sensory neuron thalamus spinal cord
The white matter consists of ascending (green) and descending (red) axons while the gray matter contains primarily dendrites and cell soma. Each segment has paired spinal nerves. 31 total Dorsal root - sensory Ventral root - motor Spinal Cord
Basal nuclei – control of movement Limbic System –Cingulate gyrus – role in emotion –Hippocampus – learning & memory –Amygdala – emotion & memory Cerebrum - basal nuclei and limbic system Figure 9-13: The limbic system
Thalamus – relay & sensory integration Hypothalamus –Homeostatic control centers –Motivated behavior control –Hunger, stress –Thirst: body osmolarity –Autonomic NS control –Emotional input –Circadian rhythms –Tropic for endocrine Diencephalon -thalamus & hypothalamus
Complex function: Language Figure 9-23: Cerebral processing of spoken and visual language
Damage to Broca's Area (Broca's aphasia) - prevents a person from producing speech - person can understand language - words are not properly formed - speech is slow and slurred. Damage to Wernicke's Area (Wernicke's aphasia) loss of word understanding person can speak clearly, but the words make no sense.
Cerebrum Figure 9-11: The basal nucleiFigure 9-16: Cerebral lateralization