Urinary System

Question 0

Reddish/brown in color, deeper than renal cortex

Answer 0

Renal Medulla

Question 1

Outer region of kidney, tends to be lighter in color

Answer 1

Renal Cortex

Question 2

Triangular regions that appear striated

Answer 2

Renal Pyramids

Question 3

Each renal pyramid ends in ____________.

Answer 3

Renal papilla

Question 4

Areas of cortical tissue that separate the renal pyramids

Answer 4

Renal Columns

Question 5

Flat, basin like cavity that empties into ureter

Answer 5

Renal Pelvis

Question 6

Each renal pyramid empties it’s urine into _______________.

Answer 6

minor calyx

Question 7

Several minor calyces merge to form _______________.

Answer 7

a major renal calyx

Question 8

The functional unit of a kidney
Microscopic filtering units of kidney
Functions: filtration, absorption, secretion
Composed of: renal corpuscle and renal tubule

Answer 8

Nephron

Question 9

Each nephron contains ______________.

*Function: filtration - pressure forces substances out of glomerulus and into Bowman’s capsule

Answer 9

a Renal Corpuscle

Question 10

A double walled structure that surrounds a glomerulus

Answer 10

Bowman’s capsule

Question 11

Glomerulus:

Answer 11

collection of blood capillaries.

Question 12

The renal tubule consists of:

Answer 12

Proximal convoluted tubule (PCT)
Loop of Henle
a Distal convoluted tubule (DCT)
and a Collecting duct - OR - collecting tubule

Question 13

Narrow tubes connect kidneys to bladder

Use peristalsis to transport urine from renal pelvis (of kidney) to bladder

Answer 13

Ureters

Question 14

Take blood AWAY from kidney

Answer 14

Renal vein

Question 15

Bring blood to kidneys

Answer 15

Renal arteries

Question 16

Takes blood AWAY from glomerulus

Answer 16

Efferent arteriole

Question 17

Brings blood to Glomerulus

Answer 17

Afferent arteriole

Question 18

Surrounds tubular portion of nephron

Answer 18

Peritubular capillaries

Question 19

The ______________ consists of: Proximal convoluted tubule (PCT) - closest to the Bowman’s capsule, tightly-coiled tube. Loop of Henle - single loop that dips down into medulla, Distal convoluted tubule (DCT) - farthest from Bowman’s capsule, collecting duct - collects urine from several nephrons takes urine to renal papillae, juxtaglomerular apparatus - regulates blood pressure

Answer 19

The Renal tubule

Question 20

Nephron (glomerulus, PCT, Loop of Henle, DCT) ~> Collecting duct ~> Renal papillae ~> Calyx ~> Renal pelvis ~> Ureter ~> Bladder ~> Urethra ~> Urethral orifice

Answer 20

Drainage of Urine (order)

Question 21

Glomerulus filtration ~> Tubular reabsorption ~> Tubular secretion ~> Urine concentration ….

Answer 21

Steps of Urine Formation

Question 22

Tube from bladder to outside of body, on female: shorter, approx. 1.5”, external opening above vaginal opening, Males: longer, approx. 6-8”, passes thru prostate gland and penis. Has mucous membrane lining.
Functions: carries urine from body - in males, also carries sperm from body

Answer 22

Urethra

Question 23

This sphincter in the urinary system, there is INVOLUNTARY control

Answer 23

Internal urethral

Question 24

In the EXTERNAL URETHRAL sphincter, there is ______________ control.

Answer 24

Voluntary