Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Nervous System/Special Senses Review
Document related concepts
Transcript
Nervous and Endocrine Systems Review Synaptic Events neuron-neuron junction 1. 2. 3. 4. Action potential arrives at the axon terminal. Action potential pushes vesicles to the end of the axon. Vesicles release neurotransmitters into the synapse. Neurotransmitters bind to receptors on the membrane of the dendrite of next neuron. Action potential initiated along dendrite of next neuron. 5. Neuron Dendrite, cell body, axon, myelin, synapse, vesicle Types of Neurons: Sketch each neuron type below and indicate their common functions and locations. Neuron Type Physical Description Location Main Function All extensions look the same Brain Good at forming networks over small distances Bipolar One dendrite and one axon with central cell body Sensory organs of the head and face Carry impulses to the brain for integration and impulses away from brain for motor response Brain Multipolar Several dendrites and single axon with central cell body Good at forming networks over large areas. Single dendrite-axon extension with cell body pushed to side Sensory organs of touch and pressure in PNS Carry impulses over great distance with speed and efficiency Anaxonic unipolar BRAIN STRUCTURE AND FUNCTION Cerebrum processing and integration Frontal lobe personality, consciousness, decision making Parietal lobes speech, sensory and motor integration Temporal lobes hearing and memory storage Occipital lobe visual cortex Cerebellum coordination of complex muscle movement Brain Stem primitive brain; autonomic body processes of life Thalamus “traffic cop” Sends info to appropriate parts of the brain for processing Support Type of Neuroglia Astrocytes oligodendrocytes Schwann cells Ependymal cells Microglia Function Description Location CNS Provide scaffold to hold neurons in place in the brain; support Star-shaped extensions that reach out from central nucleus CNS Provide insulation for axons to increase speed of transmission of impulse. Wrapping PNS Provide insulation for axons to increase speed of transmission of impulse. Wrapping CNS Lines ventricles of brain to produce CSF Rich blood supply; highly vascular CNS Immune response in the brain; phagocytes to remove debris and dead cells. Protection Bones of the cranium Cranial meninges Dura mater Arachnoid mater Pia mater CSF Blood-brain barrier Nervous System Organization (Organizational Flow chart from first lesson) Structural Organization Functional Organization Differentiate between exocrine/endocrine glands and describe the products produced and where they are secreted. Understand/Describe the process of hormone action Target, Receptors, Activation, Specificity Protein (amine and peptide) vs Lipid (steroid) Mechanism of Action Describe how endocrine reflexes are controlled and provide an example Humoral control Hormonal control Neural control Trophic hormones are released by what gland? Trophic Hormones function by: Glands, Hormones, and Diseases of the Endocrine System – review PowerPoint Difference between hyper- and hypo- secretion?
