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ANSC 4045 Exams 2025 with
Correct answers Graded A+
What is the estrous cycle length for humans? Ans: 28 days
What type of cycle do equine experience? Ans: Seasonal Poly Estrus
What is the estrous cycle length for equine? Ans: 21 days
What is the estrous cycle length for ovine? Ans: 17 days
What is the length of gestation for ovine? Ans: 5 months
What is the length of gestation for porcine? Ans: 3 months (115 days)
What type of cycle do bovine experience? Ans: Poly Estrus
What is the estrous cycle length of bovine? Ans: 21 days
What is the name of the major hormonal axis controlling reproduction? Ans:
Hypothalamal-Pituitary Gonadal axis
What are the 6 structures (parts) that form the female reproductive tract? Ans:
External genitalia, vagina, cervix, uterus, oviducts, and ovaries
What are the 4 layers in common for the "interconnecting tubes" of the
female reproductive tract? Ans: Serosa, muscularis, submucosa, and mucosa
Label the indicated structures in the diagram Ans: 1. External genitalia (vulva)
2. Vagina 3. Cervix 4. Uterus 5. Oviduct 6. Ovary
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What are the two major hormones produced by the ovary? Ans: Progesterone
and estradiol
The oviduct consists of what three parts? Ans: Ampulla, isthmus, and
infundibulum
Follicle with a large fluid filled antrum and three distinct types of follicular
cells. Ans: Preovulatory or Graafian cell
An oocyte surrounded by a single layer of cuboidal follicular cells. Ans:
primary follicle
An oocyte with two or more layers of follicular cells. Ans: secondary follicle
Follicle with an oocyte including the zona pellucida and a fluid filled antrum.
Ans: tertiary or antral follicle
An oocyte surrounded by a single layer of flattened (squamous) cells. Ans:
primordial follicle
How does the cremaster muscle work in thermoregulation of the testes? Ans:
contractions cause "pumping action" which triggers movement of
spermatozoa and blood to flow in the pampiniform plexus, allowing it to stay
contracted.
Name 2 structure involved in thermoregulation of the testes and explain how
each one works. Ans: Cremaster muscle, Tunica Dartos, Pampiniform Plexus
How does the Tunica Dartos work in thermoregulation of the testes? Ans:
contracts and brings testes closer to the body or away from the body; can stay
contracted.
ANSC 4045 Exams 2025 with
Correct answers Graded A+
What is the estrous cycle length for humans? Ans: 28 days
What type of cycle do equine experience? Ans: Seasonal Poly Estrus
What is the estrous cycle length for equine? Ans: 21 days
What is the estrous cycle length for ovine? Ans: 17 days
What is the length of gestation for ovine? Ans: 5 months
What is the length of gestation for porcine? Ans: 3 months (115 days)
What type of cycle do bovine experience? Ans: Poly Estrus
What is the estrous cycle length of bovine? Ans: 21 days
What is the name of the major hormonal axis controlling reproduction? Ans:
Hypothalamal-Pituitary Gonadal axis
What are the 6 structures (parts) that form the female reproductive tract? Ans:
External genitalia, vagina, cervix, uterus, oviducts, and ovaries
What are the 4 layers in common for the "interconnecting tubes" of the
female reproductive tract? Ans: Serosa, muscularis, submucosa, and mucosa
Label the indicated structures in the diagram Ans: 1. External genitalia (vulva)
2. Vagina 3. Cervix 4. Uterus 5. Oviduct 6. Ovary
, 2|Page
What are the two major hormones produced by the ovary? Ans: Progesterone
and estradiol
The oviduct consists of what three parts? Ans: Ampulla, isthmus, and
infundibulum
Follicle with a large fluid filled antrum and three distinct types of follicular
cells. Ans: Preovulatory or Graafian cell
An oocyte surrounded by a single layer of cuboidal follicular cells. Ans:
primary follicle
An oocyte with two or more layers of follicular cells. Ans: secondary follicle
Follicle with an oocyte including the zona pellucida and a fluid filled antrum.
Ans: tertiary or antral follicle
An oocyte surrounded by a single layer of flattened (squamous) cells. Ans:
primordial follicle
How does the cremaster muscle work in thermoregulation of the testes? Ans:
contractions cause "pumping action" which triggers movement of
spermatozoa and blood to flow in the pampiniform plexus, allowing it to stay
contracted.
Name 2 structure involved in thermoregulation of the testes and explain how
each one works. Ans: Cremaster muscle, Tunica Dartos, Pampiniform Plexus
How does the Tunica Dartos work in thermoregulation of the testes? Ans:
contracts and brings testes closer to the body or away from the body; can stay
contracted.
