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Ross Therio > Male Anatomy > Flashcards

Male Anatomy Flashcards

1
Q

What are the 5 main parts of the sperms pathway?

A
  1. Testis
  2. Epididymis head/body
  3. Epididymis tail
  4. Sex glands
  5. Penis
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2
Q

Where is sperm stored?

A

Epididymal tail

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3
Q

What are the 4 main accessory sex gland?

A

Ampullae
Vesicular
Prostate
Bulbourethral

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4
Q

Which species has a disseminate prostate?

A

Ram

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5
Q

Which species has a corpus prostate?

A

Stallion

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6
Q

Which sex gland does the boar lack?

A

Ampullae

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7
Q

Which sex glands does the tom lack?

A

Ampullae

Vesicular gland

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8
Q

What is the only sex gland a dog has?

A

Prostate

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9
Q

What are the 7 structures of the spermatic cord?

A
  1. Testicular v.
  2. Testicular a.
  3. Testicular n.
  4. Lymphatics
  5. Cremaster m.
  6. Ductus deferens
  7. Vaginal tunic
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10
Q

What is the temperature of the blood going to/from the body?

A

39oC

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11
Q

What is the temperature of the blood going to/from the testis?

A

33oC

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12
Q

What are the 3 parts of the excurrent duct system?

A
  1. Efferent ducts
  2. Epipidymal duct
  3. Ductus Deferens
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13
Q

What is the liquid, non-cellular portion of semen produced by the sex glands & epididymis?

A

Seminal plasma

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14
Q

What kind of penises do bulls, boars, & rams have?

A

Fibroelastic

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15
Q

What kind of penises do stallion & dogs have?

A

Musculovascular

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16
Q

Which species have a cartilaginous process on their gland penis?

A

Alpaca

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17
Q

Which species have penile spines?

A

Toms

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18
Q

What hormone comes from the Hypothalamus tonic centre and triggers the release of FHS & LH?

A

GnRH

19
Q

When triggered by GnRH which organ releases FSH & LH?

A

Anterior lobe of Pituitary

20
Q

Leydig cells are analougous to what cells in the female?

A

Theca interna

21
Q

What hormone do Leydig cells produce?

A

Testosterone

22
Q

LH acts upon what cells?

A

Leydig cells

23
Q

LH trigger the release of what from Leydig cells?

A

Testosterone

24
Q

FSH acts upon what cells?

A

Sertoli

25
Q

What does FSH cause at Sertoli cells?

A

Stimulates spermatogensis

Release of estradiol

26
Q

What systemic effect does testosterone have?

A

Negative feedback of GnRH–>prolong LH secretion

27
Q

Where is testosterone converted to estradiol?

A

Seminiferous tubules lumen

28
Q

What effect does Inhibin have at the Sertoli cells?

A

Suppress FSH

29
Q

Where does spermatogenesis take place?

A

Seminiferous tubules(epithelium)

30
Q

What are the 3 stages of spermatogenesis?

A

Proliferation(Mitosis)
Meiosis
Differentiation

31
Q

Which of the 3 stages of spermatogenesis takes part in the basal most part of the seminiferous tubules?

A

Proliferation(mitosis)

32
Q

What part of the seminiferous tubules do meiosis & differntiation take place?

A

Adluminal

33
Q

What are the 5 stages of a sperms development?

A
  1. Spermatogonia
  2. Primary spermatocytes
  3. Secondary spermatocytes
  4. Spermatids
  5. Spermatozoon
34
Q

What is another name for the Differentiation phase of spermatogenisis?

A

Spermiogenisis

35
Q

What are the 4 phases of the spermiogenisis?

A
  1. Golgi phase
  2. Cap phase
  3. Acrosomal phase
  4. Maturation
36
Q

Which of the 4 phases does acrosomic vesicle formation take place?

A. Golgi phase
B. Cap phase
C. Acrosomal phase
D. Maturation

A

A. Golgi phase

37
Q

Which of the 4 phases does acrosomic vesicle spreading over the nucleus take place?

A. Golgi phase
B. Cap phase
C. Acrosomal phase
D. Maturation

A

B. Cap phase

38
Q

Which of the 4 phases does nuclear & cytoplasmic elongation take place?

A. Golgi phase
B. Cap phase
C. Acrosomal phase
D. Maturation

A

C. Acrosomal phase

39
Q

What are the 3 parts of a spermatozoa’s head?

A

Nucleus
Acrosome
Postnuclear cap

40
Q

What are the 3 parts of a spermatozoa’s tail starting at the head and going down?

A

Middle piece
Principal piece
Terminal piece

41
Q

Pulse release of which 3 hormones takes place every several hours?

A

GnRH, LH, Testosterone

42
Q

T/F: Compared to the others FSH is release in larger pulses of shorter duration.

A

FALSE!

FSH is released in SMALLER pulses of SHORTER duration

43
Q

T/F: Spermatozoa are being constantly released from the testes.

A

True!

44
Q

Spermatozoa are produced by testes(ie. spermatogeneisis) within _______.

A

5-9 weeks

Ross Therio (10 decks)

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