EXCRETORY SYSTEM

Question 1

EXCRETORY SYSTEM

Answer 1

•Kidneys
•Ureters
•Urinary bladder
•Urethra

Question 2

INFO

Answer 2

Producing 1mL of urine
Around 300mL sensation of a full bladder.—> 5hrs
Around 700-800mL maximum capacity of bladder —> 13hrs

Question 3

Bean shaped; pair ; tightly cleanched fist.
• Major excretory organs of the body by removing waste products, mostly toxics.

Answer 3

Kidneys

Question 4

It is a metabolic by-products of cells and substances absorbed from the intestine.

Answer 4

Waste Products

Question 5

FUNCTIONS OF THE URINARY SYSTEM:

Answer 5

Excretion or elimination of waste regulation of blood volume and pressure
Regulation of the concentration of solutes in the body
Regulation of extracellular fluid PH Regulation of RBC synthesis
Vitamin d synthesis.

Question 6

Kidneys control the extracellular fluid volume in the body by producing either a large volume of dilute urine or small volume of concentrated urine.

Answer 6

Regulation of Blood Volume & Pressure

Question 7

Kidneys help regulate the concentration of the major molecules and ions such as glucose, sodium chlorine, potassium, calcium, bicarbonate, hydrogen phosphate.

Answer 7

Regulation of the Concentration of Solutes in the Body

Question 8

Kidneys excrete variable amounts of hydrogen to help regulate extracellular fluid ph.

Answer 8

Regulation of extracellular fluid ph

Question 9

Kidneys secrete a hormone specifically erythropoietin which regulates the synthesis of rbc in bone marrow.

Answer 9

Regulation of rbc synthesis

Question 10

Kidneys play an important role in controlling blood levels of calcium by regulating the synthesis of vitamin d.

Answer 10

Regulation of vitamin d synthesis

Question 11

Kidneys are located in the (blank) with the right kidney just below the (blank) and left kidney below the (blank)

Answer 11

Abdominal cavity
Liver
Spleen

Question 12

It is a partition or dividing digestive organ from the rest of the part where the kidneys are.

Answer 12

Parietal peritoneum

Question 13

Lie behind the parietal peritoneum

Answer 13

Retroperitoneal organs

Question 14

The kidneys are located behind the (blank). fat surrounds each kidney the renal arteries extend from the abdominal aorta to each kidney and the renal veins extend from the kidneys to the inferior vena cava.

Answer 14

Parietal peritoneum

Question 15

It is a connective tissue surrounding each kidneys

Answer 15

Renal Capsule

Question 16

Medial side where renal artery and nerves enter and were renal vein, ureter, lymphatic vessels exit

Answer 16

Hilum

Question 17

Cavity where hilum opens into and contains blood vessels, part c the system for collecting urine and adipose tissue.

Answer 17

Renal Sinus

Question 18

Surrounds the renal sinus

Answer 18

Outer cortex and Inner Medulla

Question 19

It is cone shape and located at the boundary between cortex and medulla.

Answer 19

Renal pyramids

Question 20

Funnel-shaped that surrounds the tip of each renal pyramids

Answer 20

Calyx

Question 21

Largest funnel form from calyces.

Answer 21

Renal Pelvis

Question 22

A small tube formed from the narrowing of renal pelvis that exits the kidney and connects to urinary bladder.

Answer 22

Ureter

Question 23

Functional Unit of Kidney
Millions of it inside each kidney.
To produce urine

Answer 23

Nephron

Question 24

Nephron composed of:

Answer 24

Renal Corpuscle (Bowman’s capsule & glomerulus), Proximal Convoluted Tubule, Loop of Henle, Distal Convoluted Tubule

Question 25

The renal corpuscle consists of (blank) and the (blank).

Answer 25

Bowman's capsule

Question 26

is the enlarged end of a nephron, which is indented to form a double-walled chamber. It surrounds the glomerulus, which is a network of capillaries. Blood flows from the afferent arteriole into the glomerulus and leaves the glomerulus through the efferent arteriole.

Answer 26

Bowman's capsule

Question 27

is a network of capillaries.

Answer 27

glomerulus

Question 28

the movement of water, ions, and small molecules through the filtration membrane into Bowman’s capsule; the portion of the plasma entering the nephron is the filtrate

Answer 28

Filtration

Question 29

the movement of substances from the filtrate across the wall of the nephron back into the blood of the peritubular capillaries; about 99% of filtrate is reabsorbed, only 1% of filtrate becomes urine

Answer 29

Tubular reabsorption

Question 30

the transport of substances, usually waste products, from the intestinal fluid across the wall of the nephron into the filtrate

Answer 30

Tubular secretion

Question 31

consist of substances (95% water, urea, uric acid, electrolytes) that are filtered and secreted from the peritubular capillaries into the nephron, minus those substances that are reabsorbed

Answer 31

Urine

Question 32

secreted by posterior pituitary gland - regulates the amount of water reabsorbed by the distal tubules and collecting ducts

Answer 32

Antidiuretic hormone (ADH)

Question 33

activated by stretch of the urinary bladder wall; made possible by the external urinary sphincter

Answer 33

Micturition reflex

Question 34

– bladder capacity

Answer 34

1000ml urine