2-13-08 anatomy notes

2-13-08 anatomy notes - 2-13-08 anatomy notes1.Organ...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2-13-08 anatomy notes1.Organ Systems2.Nervous Systema.Peripheral Nervous Systemi.Autonomic Nervous System (part of the PNS that is NOT under voluntary control)1.General Autonomic Principlesa.Autonomic Antagonism and Dominancei.Applies ONLY to organs receiving dual innervationii.Antagonism-NTs have opposite effectsiii.Dominance-system releasing greater quantity of 2 transmitters displays dominant effectorb.Sensesi.Sensory Unit (basic unit)1.Receptor-always have onea.Special cellb.Specialized region sensory axon2.Neural Pathwaya.Cranial NerveBrainb.Spinal NerveSpinal CordBrain3.Interpretation Center in Cerebral Cortex (gray matter)ii.Receptors1.Specificity-VERY specifica.Specifically respond to one kind of stimuli2.Functiona.Create generator potentials (local depolarizations)b.Summate into action potential to sensory neuroniii.Types1.Exteroreceptors-responds to stimuli that originate outside the bodyi.Located in: skin, tongue, nasal cavities, ear, eyeb.Cutaneous Receptors (or skin receptors)-located in dermis...
View Full Document

Page1 / 3

2-13-08 anatomy notes - 2-13-08 anatomy notes1.Organ...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online