Comd 4500 Final || A+ Graded.

Which professionals can make a medical diagnosis? correct answers Medical Dr Excitatory inputs to a neuron correct answers brings target neuron closer to threshold inhibitory inputs to a neuron correct answers takes target neuron further from threshold BRAIN LOBES AND FUNCTIONS correct answers *frontal - voluntary movement, cognition *parietal - sense of taste, touch, movement *temporal - hearing & memory processes *occipital - vision BASIC NEURAL STRUCTURES CNS and PNS correct answers PNS -sensory input from periphery-motor output to muscles-spinal nerves for trunk and limbs-cranial nerves for head and neck CNS -brain and spinal cord-protected by meninges-cerebrospinal fluid-blood brain barrier Cranial Nerves correct answers •12 pairs •some sensory only - e.g., olfactory •some sensory and motor - e.g., facial •some motor only - e.g., hypoglossal Peripheral Nervous System (PNS) correct answers •sensory input from the periphery •motor output to muscles •spinal nerves for trunk and limbs •cranial nerves for head and neck descending motor tracts correct answers carry motor instructions from the brain to the body's muscles and glands direct pathways correct answers •a.k.a. pyramidal system •corticobulbar tract •leads to cranial nerves •head and neck muscles •controls larynx and articulators •corticospinal tract •leads to spinal nerves •limb control •trunk muscles indirect pathways correct answers •cerebellum •motor learning •compares motor commands with results