Question 1

Which step(s)in the process of urine formation occur in the renal tubule?

Accepted Answer

A) Filtration 
B) Secretion 
C) Reabsorption 
D) Filtration,secretion,and reabsorption 
E) Secretion and reabsorption 
A) Filtration 
B) Secretion 
C) Reabsorption 
D) Filtration,secretion,and reabsorption 
E) Secretion and reabsorption E

Question 2

The ball of capillaries in the renal corpuscle is called the ________________.

Accepted Answer

glomerulus

Question 3

-This figure shows a renal corpuscle.The two structures indicated by number 3 collectively form the

Accepted Answer

A) Macula densa 
B) Juxtaglomerular apparatus 
C) Corticomedullary junction 
D) Juxtamedullary junction 
E) Vasa recta 
A) Macula densa 
B) Juxtaglomerular apparatus 
C) Corticomedullary junction 
D) Juxtamedullary junction 
E) Vasa recta B

Question 4

The capillaries of the glomerulus differ from other capillary networks in the body because they

Accepted Answer

A) carry only deoxygenated blood. 
B) drain into an arteriole instead of a venule. 
C) contain no endothelium. 
D) absorb nutrients from the glomerular capsule. 
E) secrete mucus. 
A) carry only deoxygenated blood. 
B) drain into an arteriole instead of a venule. 
C) contain no endothelium. 
D) absorb nutrients from the glomerular capsule. 
E) secrete mucus.

Question 5

Which is not correct regarding the juxtaglomerular apparatus?

Accepted Answer

A) The macula densa cells monitor electrolyte concentrations in tubular fluid. 
B) The macula densa cells are modified epithelial cells of the distal convoluted tubule. 
C) The juxtaglomerular cells are modified smooth muscle cells of the efferent arteriole. 
D) The juxtaglomerular cells release renin. 
E) Renin activates the renin-angiotensin pathway,resulting in aldosterone production. 
A) The macula densa cells monitor electrolyte concentrations in tubular fluid. 
B) The macula densa cells are modified epithelial cells of the distal convoluted tubule. 
C) The juxtaglomerular cells are modified smooth muscle cells of the efferent arteriole. 
D) The juxtaglomerular cells release renin. 
E) Renin activates the renin-angiotensin pathway,resulting in aldosterone production.

Question 6

Where are the renal pyramids located within the kidney?

Accepted Answer

A) Renal cortex 
B) Renal sinus 
C) Renal pelvis 
D) Renal papilla 
E) Renal medulla 
A) Renal cortex 
B) Renal sinus 
C) Renal pelvis 
D) Renal papilla 
E) Renal medulla

Question 7

Which is not of ureteric bud origin?

Accepted Answer

A) Renal pelvis 
B) Collecting duct 
C) Minor calyx 
D) Distal convoluted tubule 
E) Ureter 
A) Renal pelvis 
B) Collecting duct 
C) Minor calyx 
D) Distal convoluted tubule 
E) Ureter

Question 8

The internal urethral sphincter is formed by skeletal muscle fibers of the urogenital diaphragm.

Accepted Answer

A) True 
 B)False

Question 9

Urine flow from the renal pelvis to the urinary bladder is produced by

Accepted Answer

A) ciliary action in the renal pelvis. 
B) suction from the urinary bladder. 
C) peristalsis of the ureters. 
D) hydrostatic pressure from the small intestine. 
E) contraction of the detrusor muscle. 
A) ciliary action in the renal pelvis. 
B) suction from the urinary bladder. 
C) peristalsis of the ureters. 
D) hydrostatic pressure from the small intestine. 
E) contraction of the detrusor muscle.

Question 10

Which layer is not found in the wall of the ureter?

Accepted Answer

A) Adventitia 
B) Muscularis 
C) Mucosa 
D) Submucosa 
E) No exceptions; all layers are found in the wall of the ureter. 
A) Adventitia 
B) Muscularis 
C) Mucosa 
D) Submucosa 
E) No exceptions; all layers are found in the wall of the ureter.

Question 11

Urination is triggered by a complex sequence of events called the ___________ reflex.

Accepted Answer

The answer of Urination is triggered by a complex sequence...

Question 12

-This figure shows a renal corpuscle.What structure does number 4 indicate?

Accepted Answer

A) Efferent arteriole 
B) Renal artery 
C) Peritubular capillary 
D) Afferent arteriole 
E) Efferent venule 
A) Efferent arteriole 
B) Renal artery 
C) Peritubular capillary 
D) Afferent arteriole 
E) Efferent venule

Question 13

Which portion of the renal tubule is described as having simple cuboidal epithelium with only a sparse brush border of microvilli?

Accepted Answer

A) Proximal convoluted tubule 
B) Distal convoluted tubule 
C) Ascending limb of nephron loop 
D) Descending limb of nephron loop 
E) Collecting duct 
A) Proximal convoluted tubule 
B) Distal convoluted tubule 
C) Ascending limb of nephron loop 
D) Descending limb of nephron loop 
E) Collecting duct

Question 14

Peritubular capillaries are associated with the convoluted tubules,while vasa recta are associated with the nephron loop.

Accepted Answer

A) True 
 B)False

Question 15

Filtration occurs because

Accepted Answer

A) the glomerulus is leaky. 
B) the afferent arteriole is wider in diameter than the efferent arteriole. 
C) the capillary wall is not completely ensheathed by the visceral layer of the glomerular capsule. 
D) the filtration slits allow materials from the blood plasma to enter the capsular space. 
E) All of the choices are correct. 
A) the glomerulus is leaky. 
B) the afferent arteriole is wider in diameter than the efferent arteriole. 
C) the capillary wall is not completely ensheathed by the visceral layer of the glomerular capsule. 
D) the filtration slits allow materials from the blood plasma to enter the capsular space. 
E) All of the choices are correct.

Question 16

The average adult kidney weighs about 100 grams and measures about

Accepted Answer

A) 12 cm long,6.5 cm wide,and 2.5 cm thick. 
B) 8 cm long,4 cm wide,and 1.5 cm thick. 
C) 15 cm long,10.5 cm wide,and 4.5 cm thick. 
D) 8 cm long,10.5 cm wide,and 2.5 cm thick. 
E) 12 cm long,2.5 cm wide,and 8 cm thick. 
A) 12 cm long,6.5 cm wide,and 2.5 cm thick. 
B) 8 cm long,4 cm wide,and 1.5 cm thick. 
C) 15 cm long,10.5 cm wide,and 4.5 cm thick. 
D) 8 cm long,10.5 cm wide,and 2.5 cm thick. 
E) 12 cm long,2.5 cm wide,and 8 cm thick.

Question 17

In anatomic position,the left kidney is inferior to the right kidney.

Accepted Answer

A) True 
 B)False

Question 18

Urine formed in the pyramids must flow within the kidney to the ureter.Which structure is not part of the transport path within the kidney that carries urine to the ureter?

Accepted Answer

A) Renal sinus 
B) Major calyx 
C) Renal pelvis 
D) Minor calyx 
E) No exceptions; all choices transport urine. 
A) Renal sinus 
B) Major calyx 
C) Renal pelvis 
D) Minor calyx 
E) No exceptions; all choices transport urine.

Question 19

Where in the urinary tract is transitional epithelium found?

Accepted Answer

A) Urinary bladder 
B) Urethra 
C) Ureters,urinary bladder,and prostatic urethra 
D) Ureters 
E) Ureters and urinary bladder 
A) Urinary bladder 
B) Urethra 
C) Ureters,urinary bladder,and prostatic urethra 
D) Ureters 
E) Ureters and urinary bladder

Question 20

The spongy urethra

Accepted Answer

A) is found only in males. 
B) is the longest portion of the urethra. 
C) is encased within the corpus spongiosum. 
D) is lined proximally by pseudostratified columnar epithelium and distally by stratified squamous epithelium. 
E) All of the choices are correct. 
A) is found only in males. 
B) is the longest portion of the urethra. 
C) is encased within the corpus spongiosum. 
D) is lined proximally by pseudostratified columnar epithelium and distally by stratified squamous epithelium. 
E) All of the choices are correct.

Exam 27: Urinary System

Which step(s)in the process of urine formation occur in the renal tubule?

The ball of capillaries in the renal corpuscle is called the ________________.

-This figure shows a renal corpuscle.The two structures indicated by number 3 collectively form the

The capillaries of the glomerulus differ from other capillary networks in the body because they

Which is not correct regarding the juxtaglomerular apparatus?

Where are the renal pyramids located within the kidney?

Which is not of ureteric bud origin?

The internal urethral sphincter is formed by skeletal muscle fibers of the urogenital diaphragm.

Urine flow from the renal pelvis to the urinary bladder is produced by

Which layer is not found in the wall of the ureter?

Urination is triggered by a complex sequence of events called the ___________ reflex.

-This figure shows a renal corpuscle.What structure does number 4 indicate?

Which portion of the renal tubule is described as having simple cuboidal epithelium with only a sparse brush border of microvilli?

Peritubular capillaries are associated with the convoluted tubules,while vasa recta are associated with the nephron loop.

Filtration occurs because

The average adult kidney weighs about 100 grams and measures about

In anatomic position,the left kidney is inferior to the right kidney.

Urine formed in the pyramids must flow within the kidney to the ureter.Which structure is not part of the transport path within the kidney that carries urine to the ureter?

Where in the urinary tract is transitional epithelium found?

The spongy urethra

A First Look at Anatomy

The Celt Basic Unit of Structure and Function

Embryology

Tissue Level of Organization

Integumentary System

Cartilage and Bone

Axial Skeleton

Appendicular Skeleton

Articulations

Muscle Tissue and Organization

Axial Muscles

Appendicular Muscles

Surface Anatomy

Nervous Tissue

Brain and Cranial Nerves

Spinal Cord and Spinal Nerves

Pathways and Integrative Functions

Autonomic Nervous System

Senses: General and Special

Endocrine System

Blood

Heart

Vessels and Circulation

Lymphatic System

Respiratory System

Digestive System

Reproductive System

Filters