Transcription of Human Physiology/The Urinary System
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Human Physiology/The Urinary System1 Human Physiology/The Urinary System The Immune System Human physiology The respiratory System Homeostasis Cells Integumentary Nervous Senses Muscular Blood Cardiovascular Immune Urinary Respiratory Gastrointestinal Nutrition Endocrine Reproduction (male) Reproduction (female) Pregnancy Genetics Development AnswersIntroductionThe Urinary System is a group oforgans in the body concerned withfiltering out excess fluid and othersubstances from the bloodstream. Thesubstances are filtered out from thebody in the form of urine. Urine is aliquid produced by the kidneys,collected in the bladder and excretedthrough the urethra.
Human Physiology/The Urinary System 1 ... bladder fills with urine (about half full), stretch receptors send nerve impulses to the spinal cord, which then sends a reflex nerve impulse back to the sphincter (muscular valve) at the neck of the bladder, causing it to relax and allow
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