Human Reproduction and Gametes

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What is the total number of chromosomes present in a sperm cell and an oocyte?

46

23

23 and 23 (correct)

92

What is the main function of the dartos and cremaster muscles?

To regulate the temperature of the testes (correct)

To separate the lobules in the testes

To release sperm from the seminiferous tubules

To produce sperm

What is the name of the layer that covers the testes and separates each one into lobules?

Scrotum

Tunica albuginea (correct)

Seminiferous tubules

Tunica vasculosa

What is the function of the Sertoli cells in the seminiferous tubules?

To control sperm production and create a blood-testes barrier Signup and view all the answers

How many lobules does each testis have?

300-400 Signup and view all the answers

What is the total number of cell types present in the seminiferous tubules?

6 Signup and view all the answers

What is the purpose of the microorganisms present in the vagina?

To protect from pathogens Signup and view all the answers

What is the average duration of an ovarian cycle?

28 days Signup and view all the answers

What is the process by which a haploid ovum is formed?

Meiosis Signup and view all the answers

What is the function of the tunica albuginea?

To cover the ovaries Signup and view all the answers

What is the term for the death of multiple follicles?

Atresia Signup and view all the answers

What triggers the LH surge?

High levels of estrogen Signup and view all the answers

What is the function of the uterine tubes?

To facilitate the travel of the oocyte to the uterus Signup and view all the answers

What is the purpose of the corpus luteum?

To produce progesterone Signup and view all the answers

What is the term for the lining of the uterus that is shed during the menses phase?

Functional layer Signup and view all the answers

What is the purpose of the proliferative phase of the menstrual cycle?

To regenerate the endometrium Signup and view all the answers

What is the term for one or both testes failing to descend into the scrotum prior to birth?

Cryptorchidism Signup and view all the answers

What is the primary function of the mitochondria in the midpiece of the sperm cell?

To generate ATP for flagellar movement Signup and view all the answers

What is the approximate number of days it takes for a sperm cell to develop and mature in the epididymis?

12 days Signup and view all the answers

What is the percentage of semen that is composed of sperm?

5% Signup and view all the answers

What is the hormone responsible for regulating testosterone production in the male reproductive system?

Gonadotropin-releasing hormone Signup and view all the answers

What is the term for the fluid released by the bulbourethral glands to lubricate and clean the urethra during sexual arousal?

Pre-ejaculate Signup and view all the answers

What is the process by which the sperm cell divides to form four haploid cells?

Meiosis Signup and view all the answers

What is the structure that covers the vaginal canal and allows fluid to flow out?

Hymen Signup and view all the answers

What is the term for the surgical removal of the foreskin?

Circumcision Signup and view all the answers

What is the primary function of the lysosomal enzymes in the head of the sperm cell?

To break down the acrosome Signup and view all the answers

What happens to the endometrium if there is no pregnancy within 10-12 days?

It is shed Signup and view all the answers

What is the primary function of the breasts in the reproductive system?

To produce milk or colostrum Signup and view all the answers

What is the role of the Y chromosome in the development of the male reproductive system?

It triggers a cascade of factors that differentiate the male reproductive system Signup and view all the answers

What is the effect of poor nutrition on puberty in females?

It leads to an earlier onset of puberty Signup and view all the answers

What is the role of the negative feedback loop in children regarding the hypothalamus and puberty?

It inhibits the production of hormones in the pituitary Signup and view all the answers

At what age does the growth spurt typically occur in males?

Around age 11-13 Signup and view all the answers

Human Reproduction and Gametes

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Questions and Answers

What is the total number of chromosomes present in a sperm cell and an oocyte?

What is the main function of the dartos and cremaster muscles?

What is the name of the layer that covers the testes and separates each one into lobules?

What is the function of the Sertoli cells in the seminiferous tubules?

How many lobules does each testis have?

What is the total number of cell types present in the seminiferous tubules?

What is the purpose of the microorganisms present in the vagina?

What is the average duration of an ovarian cycle?

What is the process by which a haploid ovum is formed?

What is the function of the tunica albuginea?

What is the term for the death of multiple follicles?

What triggers the LH surge?

What is the function of the uterine tubes?

What is the purpose of the corpus luteum?

What is the term for the lining of the uterus that is shed during the menses phase?

What is the purpose of the proliferative phase of the menstrual cycle?

What is the term for one or both testes failing to descend into the scrotum prior to birth?

What is the primary function of the mitochondria in the midpiece of the sperm cell?

What is the approximate number of days it takes for a sperm cell to develop and mature in the epididymis?

What is the percentage of semen that is composed of sperm?

What is the hormone responsible for regulating testosterone production in the male reproductive system?

What is the term for the fluid released by the bulbourethral glands to lubricate and clean the urethra during sexual arousal?

What is the process by which the sperm cell divides to form four haploid cells?

What is the structure that covers the vaginal canal and allows fluid to flow out?

What is the term for the surgical removal of the foreskin?

What is the primary function of the lysosomal enzymes in the head of the sperm cell?

What happens to the endometrium if there is no pregnancy within 10-12 days?

What is the primary function of the breasts in the reproductive system?

What is the role of the Y chromosome in the development of the male reproductive system?

What is the effect of poor nutrition on puberty in females?

What is the role of the negative feedback loop in children regarding the hypothalamus and puberty?

At what age does the growth spurt typically occur in males?

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