Intermediate Minor Calyx Quiz

Q1. What is the fornix of a minor calyx?

• The recess around the base of the renal papilla
• The outer renal capsule
• The apex of the renal pyramid
• The opening of the renal artery

Q2. Which openings discharge urine at the tip of a renal papilla into a minor calyx?

• Renal lymphatics
• Openings of papillary ducts at the area cribrosa
• Glomerular capillaries
• Segmental arteries

Q3. How does the number of minor calyces compare with the number of renal papillae?

• Minor calyces have no relationship to papillae
• There are always twice as many minor calyces as papillae
• They generally correspond to papillary units but can vary
• There is always exactly one minor calyx in each kidney

Q4. What is a compound renal papilla?

• A branch of the renal artery
• A duplicated ureter
• A fused papillary unit that may drain into one calyx
• A renal lymph node

Q5. Which wall feature allows a minor calyx to conduct urine without being a rigid tube?

• Keratinized epidermis
• Skeletal muscle only
• Compact bone and cartilage
• Urothelium with connective tissue and smooth muscle

Q6. What is the relationship between a minor calyx and the renal sinus?

• It is outside the renal fascia
• It lies in the peritoneal cavity
• It occupies the renal sinus among collecting and hilar structures
• It lies entirely in the renal cortex

Q7. Which imaging finding represents contrast entering the earliest visible cup-shaped collecting structures around papillae?

• Filling of the adrenal veins
• Opacification of renal arteries only
• Opacification of minor calyces
• Contrast within glomerular capillaries only

Q8. What can happen when urine outflow from a minor calyx is obstructed?

• Localized calyceal dilatation
• Formation of a new renal pyramid
• Immediate enlargement of the renal artery
• Collapse of the renal vein

Q9. Why is the shape of the calyceal fornix clinically relevant?

• It is a delicate reflection around the papilla that can be injured or rupture
• It contains the main renal artery
• It is a skeletal muscle sphincter
• It is the thickest part of the renal capsule

Q10. Which statement best describes minor calyceal variation?

• They are always outside the kidney
• Their number and arrangement vary with papillary and collecting-system anatomy
• Every kidney has an identical calyceal pattern
• Minor calyces disappear after birth