Sympathetic responses are fight or flight cardiac

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Unformatted text preview: a Sympathetic Why do we Not see Parasympathetic Ganglia? Sympathetic Responses are “Fight or Flight” Cardiac Output • Heart Rate • Stroke Volume Fluid Volume •Salt = higher BP •Hemorrhage = lower BP Arteriole Diameter •Constrict = higher BP •Dilate = lower BP Internal Sphincter External Sphincter Sympathetic Parasympathetic Normal Radial Muscle Dilates Pupil “Sphincter” muscle Constricts Pupil Distance Vision Ciliary Muscle Ligaments Lens Near Vision Ciliary Muscle Ligaments Lens Objective 2: Objective • Describe Normal – synapse function, – transmitter substances, – mechanisms for stimulation and termination at the following kinds of receptors: • Adrenergic – Alpha (α) receptors – Beta1 (β1) receptors – Beta2 (β2) receptors • Cholinergic – Nicotinic – Muscarinic Neuron Neuron • Conducting cell of nervous system • Function: to conduct “electrical” impulses • Structure: – main cell body – long cell processes Dendrites: Conduct toward cell body “Sensory” Axon:...
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