Reproductive Physiology

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

During which phase of the oestrus cycle in rats does ovulation occur?

  • Oestrus (correct)
  • Late dioestrus
  • Early dioestrus
  • Proestrus

What is the main effect of estrogen during oestrus in rats?

  • Inhibition of cornification
  • Increase in leukocytes
  • Thickening of vaginal epithelium (correct)
  • Breakdown of glycogen

Which phase of the oestrus cycle in rats is characterized by the regression of the corpus luteum if fertilization and implantation have not occurred?

  • Proestrus
  • Oestrus
  • Early dioestrus
  • Late dioestrus (correct)

Which hormone stimulates the growth of the endometrium in preparation for implantation of a fertilized oocyte?

<p>Estrogen (B)</p> Signup and view all the answers

What is the approximate weight of an estrogen-treated uterus compared to a progesterone-treated uterus?

<p>Approximately 0.5-1% total body weight (C)</p> Signup and view all the answers

Which gland secretes alkaline fluid into the urethra to neutralize the acidic environment of the vagina?

<p>Prostate gland (D)</p> Signup and view all the answers

What is the function of the seminal vesicle fluid in semen?

<p>Contains nutrients and fibrinogen (B)</p> Signup and view all the answers

Which phase of the oestrus cycle in rats is characterized by the appearance of leukocytes in the vaginal epithelium?

<p>Early dioestrus (B)</p> Signup and view all the answers

What is the main effect of progesterone during proestrus in rats?

<p>Inhibits cornification (B)</p> Signup and view all the answers

What is the approximate percentage of cornified epithelial cells during oestrus in rats?

<p>90% (D)</p> Signup and view all the answers

Which phase of the oestrus cycle in rats is characterized by the regression of the corpus luteum if fertilization and implantation have not occurred?

<p>Late dioestrus (A)</p> Signup and view all the answers

What is the main effect of estrogen during oestrus in rats?

<p>Thickening of vaginal epithelium (C)</p> Signup and view all the answers

What is the approximate percentage of nucleated epithelial cells during proestrus in rats?

<p>80% (D)</p> Signup and view all the answers

What is the approximate percentage of cornified epithelial cells during early dioestrus in rats?

<p>70% (B)</p> Signup and view all the answers

What is the approximate percentage of leukocytes during late dioestrus in rats?

<p>90% (A)</p> Signup and view all the answers

What is the approximate percentage of nucleated epithelial cells during late dioestrus in rats?

<p>5% (C)</p> Signup and view all the answers

What is the approximate percentage of cornified epithelial cells during proestrus in rats?

<p>30% (C)</p> Signup and view all the answers

Which hormone is responsible for maintaining the endometrial layer growth under the influence of estrogen, but does not stimulate any further growth?

<p>Progesterone (A)</p> Signup and view all the answers

What is the main function of the prostate gland in the male reproductive system?

<p>Secretes alkaline fluid into the urethra to neutralize the acidic environment of the vagina (B)</p> Signup and view all the answers

What is the approximate weight of an estrogen-treated rat uterus compared to a progesterone-treated rat uterus?

<p>Estrogen-treated uterus is approximately 0.5-1% of the total body weight (A)</p> Signup and view all the answers

Which gland secretes mucoproteins released prior to ejaculation, neutralizing urine in the urethra and providing lubrication?

<p>Bulbourethral gland (A)</p> Signup and view all the answers

Which hormone is responsible for stimulating the growth of the endometrium in preparation for implantation of a fertilized oocyte?

<p>Estrogen (C)</p> Signup and view all the answers

What is the main function of the seminal vesicle fluid in semen?

<p>Provides nutrients for sperm (B)</p> Signup and view all the answers

Which hormone is secreted by the blastocyst shortly after implantation and maintains the corpus luteum for the secretion of estrogen and progesterone?

<p>hCG (A)</p> Signup and view all the answers

What is the main function of the epididymis in the male reproductive system?

<p>Stores mature sperm (B)</p> Signup and view all the answers

What is the main function of the vas deferens in the male reproductive system?

<p>Carries sperm from the tail of the epididymis to the prostate gland (B)</p> Signup and view all the answers

What is the main function of the prostate-specific antigen (PSA) secreted by the prostate gland?

<p>Breaks down clotted semen for swimming into the uterus (D)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Open
Browser
Browser