Reproductive System- A&P II Test
Questions with All Actual Answers 2026-
2027 Updated.
What are the primary sex organs? - Answer Gonads: Testes(male), and ovaries(female).
What do Gonads produce? - Answer Sex cells (gametes)
What do Gonads secrete? - Answer Steroid sex hormones - Androgen's (males), Estrogen's and
Progesterone (females).
What do Sex Hormones play roles in? - Answer Development and function of the reproductive
organs, sexual behavior and drives, growth and development of many other organs and tissues.
Sex Determination in Humans
# Chromosomes - Answer -Primarily determined by the presence or absence of a Y
chromosome
-Chromosomes are composed of DNA and proteins
-In humans, most normal somatic cells have 46 chromosomes or 23 pairs of chromosomes
-Of the 23 pairs, 22 are referred to as autosomes
-The 23rd pair is referred to as sex chromosomes
-There are two types of sex chromosomes: X and Y
-Females have two copies of the X chromosome and males have an X chromosome and a Y
chromosome
How are sperm delivered? - Answer Through a system of spermatic ducts: Epididymis, ductus
deferens ejaculatory duct, and the urethra.
What are the 3 accessory glands of the Male Reproductive System? - Answer 1. Seminal
vesicles
2. Prostate Gland
3. Bulbourethral glands.
What do the accessory glands do? - Answer Empty secretions into the ducts during
ejaculation.
What divides the testis? - Answer lobules, each containing 1 - 4 seminiferous tubules.
, What are Sperm conveyed through? - Answer Seminiferous tubules, epididymis.
Male & Female Reproductive Duct - Answer -Male reproductive tract is referred to as the
mesonephric duct
-Female reproductive tract is referred to as the paramesonephric duct (Mullerian)
What encloses nerve fibers, blood vessels, and lymphatics that supply the testes? - Answer
Spermatic cord.
What are Interstitial (Leydig) cells? - Answer Outside the seminiferous tubules that produce
androgens(testosterone)
When does sexual differentiation begin? - Answer 12 weeks of gestation ; gonads develop at
5-6 wks as gonadal ridges
SRY gene - Answer Sex determining Region of Y chromosome; in males TDF initiates
development of testes and stimulates mesonephric ducts to develop into the male anatomy
MIH - Answer Mullerian-Inhibiting Factor; secreted by testes causing degeneration of the
paramesonephric ducts
Development of External Genitalia - Answer Gential Tubercle- Becomes (glans penis) or (glans
clitoris)
Urogenital Folds (encloses urethra in male) or (forms Labia minors)
Labioscrotal Folds- Become (scrotum) or (Labia Majora)
% Accessory Glands produce? - Answer Seminal Vesicles = 60% semen
Prostate = 30% semen
spermatic duct secretions = 10%
Bulbo = used to lubricate Glans Penis
Questions with All Actual Answers 2026-
2027 Updated.
What are the primary sex organs? - Answer Gonads: Testes(male), and ovaries(female).
What do Gonads produce? - Answer Sex cells (gametes)
What do Gonads secrete? - Answer Steroid sex hormones - Androgen's (males), Estrogen's and
Progesterone (females).
What do Sex Hormones play roles in? - Answer Development and function of the reproductive
organs, sexual behavior and drives, growth and development of many other organs and tissues.
Sex Determination in Humans
# Chromosomes - Answer -Primarily determined by the presence or absence of a Y
chromosome
-Chromosomes are composed of DNA and proteins
-In humans, most normal somatic cells have 46 chromosomes or 23 pairs of chromosomes
-Of the 23 pairs, 22 are referred to as autosomes
-The 23rd pair is referred to as sex chromosomes
-There are two types of sex chromosomes: X and Y
-Females have two copies of the X chromosome and males have an X chromosome and a Y
chromosome
How are sperm delivered? - Answer Through a system of spermatic ducts: Epididymis, ductus
deferens ejaculatory duct, and the urethra.
What are the 3 accessory glands of the Male Reproductive System? - Answer 1. Seminal
vesicles
2. Prostate Gland
3. Bulbourethral glands.
What do the accessory glands do? - Answer Empty secretions into the ducts during
ejaculation.
What divides the testis? - Answer lobules, each containing 1 - 4 seminiferous tubules.
, What are Sperm conveyed through? - Answer Seminiferous tubules, epididymis.
Male & Female Reproductive Duct - Answer -Male reproductive tract is referred to as the
mesonephric duct
-Female reproductive tract is referred to as the paramesonephric duct (Mullerian)
What encloses nerve fibers, blood vessels, and lymphatics that supply the testes? - Answer
Spermatic cord.
What are Interstitial (Leydig) cells? - Answer Outside the seminiferous tubules that produce
androgens(testosterone)
When does sexual differentiation begin? - Answer 12 weeks of gestation ; gonads develop at
5-6 wks as gonadal ridges
SRY gene - Answer Sex determining Region of Y chromosome; in males TDF initiates
development of testes and stimulates mesonephric ducts to develop into the male anatomy
MIH - Answer Mullerian-Inhibiting Factor; secreted by testes causing degeneration of the
paramesonephric ducts
Development of External Genitalia - Answer Gential Tubercle- Becomes (glans penis) or (glans
clitoris)
Urogenital Folds (encloses urethra in male) or (forms Labia minors)
Labioscrotal Folds- Become (scrotum) or (Labia Majora)
% Accessory Glands produce? - Answer Seminal Vesicles = 60% semen
Prostate = 30% semen
spermatic duct secretions = 10%
Bulbo = used to lubricate Glans Penis
