URINARY SYSTEM

Question 1

Function of urinary system is:

Answer 1

Excretion of metabolic wastes and to maintain homeostasis of blood.

Question 2

Excretion is:

Answer 2

the majority of the metabolic wastes removed from the

body is mainly due to the action of the kidneys.

Question 3

Kidney function in urinary system:

Answer 3

main organ in the urinary system, produces urine.

Question 4

Ureters function:

Answer 4

conduct urine from the kidneys to the bladder by peristaltic contractions produced from contractions of smooth muscles in ureter wall

Question 5

Urinary bladder functions:

Answer 5

stores urine until it is expelled from the body.

Question 6

Urethra function:

Answer 6

small tube that extends from the urinary bladder to an external opening. In males the urethra also functions as a reproductive tract
organ.

Question 7

_____ Filter waste from blood

Answer 7

Kidneys

Question 8

Kidneys function in the Maintenance of ______ of the blood.

Answer 8

water-salt balance

Question 9

____ Regulates blood pressure

Answer 9

kidneys

Question 10

____ is responsible for Maintenance of acid-base balance of

the blood

Answer 10

Kidneys

Question 11

Kidneys secrete the hormones:

Answer 11

Renin and Erythropoietin

Question 12

The kidneys are located in this cavity:

1. Cranial
2. Thoracic
3. Abdominal
4. Pleural

Answer 12

3. Abdominal

Question 13

Each kidney has three regions what are they:

Answer 13

1. Renal cortex
2. Renal medulla
3. Renal pelvis/sinus

Question 14

____ is an outer granulated layer

Answer 14

Renal cortex

Question 15

______ consists of cone-shaped tissue masses called renal pyramids

Answer 15

Renal Medulla

Question 16

____ a central cavity that is continuous with the ureter

Answer 16

Renal Pelvis

Question 17

____ is the functional units of the kidneys

Answer 17

Nephrons

Question 18

Nephrons extend from the ______ into

the _____

Answer 18

Renal cortex, renal medulla

Question 19

Parts of the Nephron

Answer 19

1. The glomerulus
2. The glomerular capsule
3. Proximal convoluted tubule
4. Loop of the nephron (Loop of Henle)
5. Distal convoluted tubule
6. The collecting Duct

Question 20

______ is where fluid is filtered from blood

Answer 20

glomerulus and glomerular capsule

Question 21

The glomerulus is _____

Answer 21

the network of capillaries

Question 22

The glomerular capsule (Bowman’s capsule) surrounds the ____

Answer 22

glomerulus

Question 23

The nephron performs three functions

Answer 23

1. Glomerular filtration
2. Tubular reabsorption
3. Tubular secretion

Question 24

Glomerular filtration occurs as:

Answer 24

blood pressure forces water, ions, and other small molecules in the blood through the pores in the glomerulus and into the glomerular capsule

Question 25

The ____ passes into the proximal | convoluted tubule

Answer 25

The filtrate

Question 26

____ is where reabsorption of filtrate components occurs

Answer 26

Proximal convoluted tubule

Question 27

tubular secretion occurs in the ____

Answer 27

Proximal convoluted tubule

Question 28

______ consists of a descending limb and an ascending limb

Answer 28

Loop of the Nephron (Loop of Henle)

Question 29

_____ regulates osmotic balance A. PCT B. Loop of Nephron C. DCT

Answer 29

B.

Question 30

_____ function is reabsorption of water and salts

Answer 30

Distal Convoluted tubule

Question 31

Collecting ducts function:

Answer 31

carry urine to the renal pelvis.

Question 32

Tubular reabsorption is when:

Answer 32

many molecules are reabsorbed – transported from the lumen of the tubule back into capillaries

Question 33

Tubular ______ is when substances are removed | from the blood and added to the tubular fluid

Answer 33

Secretion

Question 34

This structure conducts urine from the kidneys to the bladder 1. Urethra 2. Ureters

Answer 34

2. Ureters

Question 35

What is the functional unit of the kidney? 1. Renal medulla 2. Nephron 3. Renal cortex

Answer 35

2. Nephron

Question 36

``` Diuretics _____(increase/decrease) urinary output, making more _____ (dilute/concentrated) urine ```

Answer 36

increase, dilute

Question 37

Examples of diuretics:

Answer 37

Caffeine Lasix Alcohol

Question 38

Antidiuretic hormone (ADH) makes more _____ urine

Answer 38

concentrated

Question 39

Antidiuretic hormone (ADH) ____ your blood pressure and volume

Answer 39

Increase

Question 40

Aldosterone makes more _____ urine

Answer 40

concentrated

Question 41

Aldosterone ______ blood pressure and volume

Answer 41

increases

Question 42

Atrial Natriuretic Peptide (ANP) makes more _____ urine

Answer 42

dilute

Question 43

Atrial Natriuretic Peptide (ANP) _____ blood pressure and volume

Answer 43

decreases

Question 44

Renin function:

Answer 44

Increases blood pressure by triggering the release of aldosterone by the adrenal cortex

Question 45

Does renin increase or decrease blood pressure?

Answer 45

Increase

Question 46

Erythropoietin functions:

Answer 46

speeds up the maturation process of RBCs, target = stem cells in bone marrow

Question 47

Kidney’s role in Acid-Base Balance:

Answer 47

H+ is secreted into the tubules and bicarbonate is reabsorbed out of the tubules

Question 48

Kidney’s role in Salt-Water Balance:

Answer 48

The kidneys reabsorb salt and water, maintaining osmotic balance in the blood, this also affects blood pressure

Question 49

The urine goes from the _______ into the _____ then to the ____ where it is stored until it can be released through the ______.

Answer 49

kidneys, ureters, bladder, urethra

Question 50

Urination is controlled by both ______ and ______ actions

Answer 50

voluntary and involuntary actions

Question 51

When the bladder fills to about 250ml of urine then the motor nerve impulses cause the ______ to contract and the ______ to relax so that urination is possible.

Answer 51

bladder, sphincters

Question 52

``` What hormone is secreted by the kidneys to increase blood pressure: 1. ADH 2. Renin 3. Aldersterone 4. Erythropoietin ```

Answer 52

2. Renin

Question 53

Which structure conducts urine from the bladder to an external opening (outside the body)? Ureter Urethra

Answer 53

Urethra

Question 54

Which of the following hormones reduces blood pressure? ANP Aldosterone Renin AD

Answer 54

ANP

Question 55

When molecules or ions are transported from the lumen of the tubule into capillaries, this is Glomerular filtration Tubular secretion Tubular reabsorption

Answer 55

Tubular reabsorption