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reproductive > male sexual function > Flashcards

male sexual function Flashcards

1
Q

main vein of the penis

A

deep dorsal vein

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2
Q

3 categories of erection

A
  1. psychogenic
  2. reflexogenic
  3. nocturnal
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3
Q

REM sleep, mechanism unknown activates:

spinal erection center S2-4

A

nocturnal

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4
Q

Tactile stimulus via dorsal nerve activates:

spinal erection center S2-4

A

reflexogenic

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5
Q

Audiovisual and fantasy
Cortical output activates:
spinal erection center S2-4

A

psychogenic

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6
Q

flaccid state of tumescence

A

smooth muscle tonically contracted and low arterial inflow

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7
Q

stimulated state of tumescence

  1. release of NTT
  2. arterial dilation
  3. expansion of sinusoids
  4. increase in intracavernosal pressure
A
  1. release of NTT- smooth muscle relaxation in sinusoids
  2. arterial dilation- increased blood flow into sinusodial space
  3. expansion of sinusoids- compression of emissary veins and trapping of blood as outflow decreased
  4. increase in intracavernosal pressure - rigid erection with contraction of the ishiocav muscles
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8
Q

common risk factors for ED

A

aging

  • smoking
  • HTN
  • sedentary lifestyle
  • obesity
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9
Q

classification of ed

A
  1. psychogenic
  2. neurogenic
  3. arteriogenic (vascular)
  4. drug induced- beta blockers
  5. endocrine- diabetes, thyroid diseases, testosterone deficiency
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10
Q

medical therapy for ED

A

inhibition of PDE5 to maintain cGMP levels

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11
Q

prescribing viagra caution

A

pts. cardiovascular events or diseases

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12
Q

intraurethral prostangalnding E1

A

relaxation of sinusodial vessels and thus dilation of them

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13
Q

phentolomine

A

alpha blockers

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14
Q

papavarine

A

inhibits phosphodiesterase thus calcium influx

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15
Q

Painless erection without detumescence

A

priapism

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16
Q

Most ED is vasculogenic

A

yep

17
Q

priapism low flow

A

venous reason that requires treatment immediately due to risk of ischemia

18
Q

priapism of high flow

A

due to a fistula

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