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BIOLOGY LASTTTTT > EXCRETORY SYSTEM > Flashcards

EXCRETORY SYSTEM Flashcards

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1
Q

EXCRETORY SYSTEM

A

•Kidneys
•Ureters
•Urinary bladder
•Urethra

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2
Q

INFO

A

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

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3
Q

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

A

Kidneys

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4
Q

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

A

Waste Products

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5
Q

FUNCTIONS OF THE URINARY SYSTEM:

A

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.

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6
Q

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

A

Regulation of Blood Volume & Pressure

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7
Q

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

A

Regulation of the Concentration of Solutes in the Body

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8
Q

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

A

Regulation of extracellular fluid ph

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9
Q

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

A

Regulation of rbc synthesis

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10
Q

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

A

Regulation of vitamin d synthesis

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11
Q

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

A

Abdominal cavity
Liver
Spleen

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12
Q

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

A

Parietal peritoneum

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13
Q

Lie behind the parietal peritoneum

A

Retroperitoneal organs

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14
Q

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.

A

Parietal peritoneum

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15
Q

It is a connective tissue surrounding each kidneys

A

Renal Capsule

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16
Q

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

A

Hilum

17
Q

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

A

Renal Sinus

18
Q

Surrounds the renal sinus

A

Outer cortex and Inner Medulla

19
Q

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

A

Renal pyramids

20
Q

Funnel-shaped that surrounds the tip of each renal pyramids

A

Calyx

21
Q

Largest funnel form from calyces.

A

Renal Pelvis

22
Q

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

A

Ureter

23
Q

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

A

Nephron

24
Q

Nephron composed of:

A

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

25
Q

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

A

Bowman’s capsule

26
Q

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.

A

Bowman’s capsule

27
Q

is a network of capillaries.

A

glomerulus

28
Q

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

A

Filtration

29
Q

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

A

Tubular reabsorption

30
Q

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

A

Tubular secretion

31
Q

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

A

Urine

32
Q

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

A

Antidiuretic hormone (ADH)

33
Q

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

A

Micturition reflex

34
Q

– bladder capacity

A

1000ml urine

BIOLOGY LASTTTTT (3 decks)

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