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Urinary System - Coggle Diagram

- - - - Metabolic Waste:
        
        waste produced by the body
        
        Nitrogenous Wastes
        
        about 50% are
        
        Urea
        
        by product of protein catabolism
        
        Uric Acid
        
        produced by catabolism of nucleic acids
        
        Creatinine
        
        produced by catabolism of creatine phosphate
        
        Ammonia
        
        Proteins are hydrolyzed to amino acids, then -NH2 group is removed from each amino acid, these -NH2 form Ammonia
        
        very toxic, but liver turns it into the less toxic:
        
        level of Nitrogenous Wastes in body is expressed as the
        
        Blood Urea Nitrogen (BUN)
        
        normal concentration
        
        10-20mg/dL
        
        elavated BUN is
        
        Azotemia
        
        2 more items...
      - Excretion
        
        separating wastes from body fluids and eliminating them from the body.
        
        Respiratory System
        
        Excretes: CO2, small amounts of other gases, water
        
        Integumentary System
        
        Excretes: water, inorganic salts, lactate, urea via sweat
        
        Digestive System
        
        Excretes: water, salts, CO2, lipids, bile pigments, cholesterol, etc. (FOOD DOES NOT COUNT!)
        
        Urinary System
        
        Excretes: metabolic wastes, toxins, drugs, hormones, salts, hydrogen ions, water
    - - stimulates production of RBCs
    - - Calcitriol Synthesis
  - - - Renal Fascia:
        
        outermost, binds to abdominal wall
      - Perirenal Fat Capsule:
        
        cushions kidney and holds in place
      - Fibrous Capsule
        
        encloses kidney and protects from trauma and infection
    - - glandular tissue that forms urine
      - Renal Cortex
        
        boundary is called
        
        Corticomedullary Junction
        
        Renal Columns
        
        extensions of Cortex that go thru the Medulla to the Sinus, the part of the Medulla between the columns that is left, is 6-10
        
        Renal Pyramids
        
        Papilla (point) nestles into a cup that collects its urine called a
        
        Minor Calyx
        
        1 more item...
      - Renal Medulla
    - - medial cavity w/ blood vess., lymphatic vess. nerves, urine structures
  - - - Renal Fraction
    - - Aorta
        
        Renal Artery
        
        Segmental Arteries
        
        Interlobar Arteries
        
        penetrates renal columns, divides before corticomedullary junction
        
        Arcuate Arteries
        
        Cortical Radiate Arteries
        
        2 more items...
        
        travel along base of pyramids
        
        divide before entering Medulla
        
        divides before entering Hilum
  - - - Tubular Reabsorption
        
        Tubular Secretion
        
        Water Conservation
      - creates a plasmalike filtrate of blood