Urinary System Anatomy 1 Flashcards

1
Q

What cells release renin in response to low sodium?

A

Juxtaglomerular cells

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2
Q

Where are these cells found within the kidney?

A

Juxtaglomerular apparatus

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3
Q

What is the pathway for blood through the kidney?

A

Abdominal aorta –> renal arteries –> interlobar arteries –> arcuate arteries –> interlobular arteries –> afferent arteriole –> efferent arteriole –> stellate veins –> interlobular veins –> arcuate veins –> interlobar veins –> renal veins –> inferior vena cava

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4
Q

What is the flow of filtrate through the nephron?

A

Glomerulus –> Bowman’s capsule –> proximal tubular –> loop of Henle –> distal tubule –> collecting duct –> renal pelvis

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5
Q

What is the muscle of the bladder?

A

Detrusor muscle

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6
Q

What is the trigone?

A

The 2 ureteric orifices

The opening for the urethra

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7
Q

What rib bisects the kidney?

A

Rib 12

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8
Q

The kidneys are located between which spinal levels?

A

T11 - L3

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9
Q

What nerve controls the voluntary external urethral sphincter?

A

Pudendal nerve S2,3,4

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10
Q

What effect does sympathetics have on the bladder?

A

Relax the detrusor muscle

Activate the internal sphincter (i.e. close it off)

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11
Q

What effect does parasympathetics have on the bladder?

A

Contracts the detrusor muscle

Inhibits/relaxes the internal sphincter

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12
Q

Where does the bladder get its blood supply?

A

Internal iliac artery

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