1000ft View Male Reproductive Flashcards

1
Q

Hormones affecting anterior pituitary travel via ________ blood from the hypothalamus

A

hypophysial portal

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2
Q

What is the bulbospongiosum?

A

Muscle around later aspect of the bulb of the penis and proximal body

Innervated by the pudendal nerve

Supports the pevic floor

Helps to expell all of the semen, pushes blood from bulb into body of penis

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3
Q

What is the function of the Ischiocavernosus muscle?

A

helps maintain erection, compresses venous flow

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4
Q

What are the anatomical sections of the penis?

A
  • Root: contals 3 sections of erectile tissue (crus and bulb)
  • Body: suspends from the pubic symphysis, attached via the suspensory ligament (contains the erectile tissues)
  • Glands: contains the eternal erethra orifice, contained with in the prepuce, double layer of skin
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5
Q

What is the name of the fascia incasing the penis?

A

Deep Buck’s Fascia

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6
Q

Is the corpus spongiosum on the dorsal or ventral side of the penis?

A

Ventral

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7
Q

What muscle will pull the spermatacord upward?

A

Cremaster muslce

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8
Q

When do the testes descend in-utero?

A

3 months before birth

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9
Q

What covers the testes?

A

Tunica vaginalis

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10
Q

What artery supplies the testes?

A

Internal spermatic artery

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11
Q

Where is sperm made?

A

Seminiferous tubulues

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12
Q

What are the two cell types within the testes?

A

Leydig cells and Sertoli cells

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13
Q

What stimulate steroli cells?

A

Leydig Cells and FSH (FSH will cause sertoli cells to make androgen bonding protein)

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14
Q

How long does it take sperm to mature in the epididymis?

A

12 days, obtain nutrients and testeosterone

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15
Q

What cells create testosterone when stimulated by LH?

A

Leydig Cells

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16
Q

What are the contents of seminal fluid?

A
  • Fructose for sperm metabolism
  • Prostogladins to protect sperm within vagina
  • Fibrinolysin (from prostate): Alkalizes fluid to protect from vagina
17
Q

What is the pH of sperm?

A

7.5

18
Q

How long will sperm live at body temperature?

A

24-48 hours

19
Q

Where is sperm stored?

A

Epididymis

20
Q

What branch of the nervous system is responsible for an erection?

A

Parasympathetic

21
Q

What branch of the nervous system is responsible for ejaculation?

A

Sympathetic

22
Q

During ejaculation what catacholamine causes constriction so there is no exchange between urine and semen?

A

Norepinephrine

23
Q

What gene is on the Y chromosome and will inhibit female characteristics from continuing to develop?

A

SRY gene

24
Q

What ducts will take over to allow male anatomy once the SRY gene is expressed?

A

Wolffman ducts