The labia minora and labia majora are parts of which aspect of the female anatomy?

A. Urea: Urea is the major nitrogenous waste normally present in urine.
B. Albumin:Albumin in urine (albuminuria/proteinuria) is abnormal and suggests glomerular damage or increased filtration of plasma proteins.
C. Sodium: Sodium is a normal urinary electrolyte whose excretion varies with intake and hormonal control.
D. Creatinine:Creatinine is a normal waste product excreted in urine and used clinically to assess renal function.

A. Primary bronchus: The primary (main) bronchus is the first large airway branch that arises at the carina from the trachea and conducts air into each lung.
B. Respiratory bronchiole: Respiratory bronchioles are very small distal airways that contain alveoli and are deep within the lung parenchyma; they are much smaller than the structure shown near the main branch.
C. Trachea: The trachea is the central airway above the bifurcation (a vertical tube with cartilage rings); a label on the long central tube would indicate the trachea, not the branching airway.
D. Secondary bronchus: Secondary (lobar) bronchi are branches of the primary bronchus that lead to lung lobes; they are a generation distal to the main bronchus and are smaller than the primary bronchus.