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WGU D116 Pharmacology – Questions & Accurate Answers
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WGU D116 Pharmacology – Questions & Accurate Answers
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WGU D116 Pharmacology – Questions & AccurateAnswers
Parasympathetic nerves causes the following: Right Ans - • Slowing of
heart rate
• Increased gastric secretion
• Emptying of the bladder
• Emptying of the bowel
• Focusing the eye for near vision
• Constricting the pupil
• Contracting bronchial smooth muscle
The sympathetic nervous system has three main functions: Right Ans - •
Regulating the cardiovascular system
• Regulating body temperature
• Implementing the acute stress response (commonly called a "fight-or-flight"
reaction)
Nicotinic-N Right Ans - cholinergic
Location-All autonomic nervous system ganglia and the adrenal medulla
Response to Receptor Activation-Stimulation of parasympathetic and
sympathetic postganglionic nerves and release of epinephrine from the
adrenal medulla
Nicotinic-M Right Ans - cholinergic
Neuromuscular junction
Contraction of skeletal muscle
Muscarinic Right Ans - cholinergic
Location- eye, heart, bladder, gi tract,
Contraction of the ciliary muscle focuses the lens for near vision
, Contraction of the iris sphincter muscle causes miosis (decreased pupil
diameter)
Heart-Decreased rate
Lung-Constriction of bronchi
Promotion of secretions
Contraction of detrusor increases bladder pressure
Relaxation of trigone and sphincter allows urine to leave the bladder
Coordinated contraction of detrusor and relaxation of trigone and sphincter
causes voiding of the bladder
Gastrointestinal tract
Salivation
Increased gastric secretions
Increased intestinal tone and motility
Defecation
α1 Right Ans - adrenergic
Eye-Contraction of the radial muscle of the iris causes mydriasis (increased
pupil size)
Arterioles
Skin
Viscera
Mucous membranes
=Constriction
Veins=Constriction
Sex organs, maleEjaculation
Prostatic capsule=Contraction
Bladder=Contraction of trigone and sphincter
α2 Right Ans - adrenergic
Presynaptic nerve terminals
Inhibition of transmitter release
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