Respiratory/Urinary Physiology Assignment Packet

Atmospheric Pressure value

760mmHg

Inhalation: interpleural pressure

754 mmHg

Inhalation: Alveolar pressure

758 mmHg

Exhalation: interpleural pressure

756 mmHgE

Exhalation: alveolar pressure

762 mmHg

Purpose of a surfactant

reduces surface tension on alveoli

Tidal volume

(500 mL) amount of air inhaled/exhaled in one breath

Vital capacity

(4700 mL) amount of air inhaled/exhaled with maximum effort

Inspiratory Reserve Volume

(3000 mL) amount of air in excess of tidal inspiration that can be inhaled with maximum effort

Expiratory Reserve Volume

(1200 mL) amount of air in excess of tidal expiration that can be exhaled with maximum effortT

Total lung capacity

(5900 mL) maximum amount of air the lungs can contain

Reabsorbed in Proximal convoluted tubule (PCT)

water, glucose, amino acids, Na, K, Cl, Ca, bicarbonate, Mg (100 mL)

Reabsorbed in Nephron Loop

Na, Cl, K, water, bicarbonate, Ca, Mg (7 mL)

Reabsorbed in Distal Convoluted Tubule (DCT)

Na, Cl, water, Ca (12 mL)

Reabsorbed in collecting duct

water, Na, bicarbonate (5mL)

What is the general scheme for reabsorption?

Na is actively moved, Cl follows positive charge, water move via osmosis

Secreted in Proximal convoluted tubule

H3O, ammonium, urea, creatine

Secreted in Nephron Loop

urea

Secreted in Distal convoluted tubule

hydronium, potassium

Secreted in Collecting duct

hydronium, potassium