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Physiology of reproduction VET > Lecture 5 > Flashcards

Lecture 5 Flashcards

1
Q

Spermatogenesis

A

Sum of all cellular transformations (mitotic divisions+meiosis+spermiogenesis) in developing germ cells witch give rise to spermatozoa

  • SPERMATOGENESIS
  • SPERMATOCITOGENESIS
  • MEIOSIS
  • SPERMIOGENESIS
  • *(SPERMIOMORFOGENESIS)**
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2
Q

Spermatocitogenesis

A

Sum of all cellular transformations (mitotic divisions) in developing germ cells witch give rise to spermatids Take place in the seminiferous tubule

Three steps (periods):

  • germination period;
  • growth period;
  • maturation period.
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3
Q

Spermiogenesis

A

The progressive morphologic changes of spermatides to form spermatozoa.

It is conducted in four phases:

  • *1. Golgi phase;
    2. Cap phase;
    3. Acrozomal phase;
    4. Maturation phase.**
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4
Q

Golgi phase

A
  • First steps in developpment of the acrosome
  • The Golgi apparatus give rise to many small vesicles (proacrosomic vesicles)
  • The proacrosomic vesicles fuse to generate a large vesicle (acrosomic vesicle) containing acrosomic granules
  • The centrioles migrate to the base of nucleus
  • The proximal centriole will give rise to an implantation apparatus that allows the flagellum to be anchored to the nucleus
  • The distal centriole give rise to the developing axoneme
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5
Q

Cap phase

A
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6
Q

Acrosomal phase

A
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7
Q

Spermiogenesis: the maturation
phase

A
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8
Q

Epididymis; maturation

A
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9
Q

The sperm cells

A
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10
Q

Sperm cell HEAD

A
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11
Q

The sperm neck

A
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12
Q

Sperm tail

A
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13
Q

Physical characteristics of semen: volume

A

The semen characteristics

Physical

Byochemical

Biological

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14
Q

Physical characteristics of semen: COLOR

A
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15
Q

Physical characteristics of semen: Smell & gravidy

A
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16
Q

Biochemical characteristics of semen

A
17
Q

Biochemical characteristics of semen 2

A
18
Q

Biochemical characteristics of semen (3)

A
  • Hormons:
  • Androgens ;
  • Estrogens ;
  • Prostaglandins .
  • FSH
  • LH

Physiology of reproduction VET (10 decks)

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