BIO 142 Anatomy & Physiology
See correct answers immediately with detailed explanations after each question.
Answer all questions, then review your results with feedback at the end.
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Below are sample questions from this exam to help you understand the content and format.
Q1: The urethral orifice is ______ to the vagina opening.
Answer Choices:
⮞ The urethral orifice is located anterior to the vaginal opening in female anatomy, meaning it lies in front of the vagina.
⮞ This anatomical arrangement allows urine to exit the body through a separate passageway from the reproductive tract, reducing the risk of contamination between the urinary and reproductive systems.
⮞ The urethral orifice is positioned below the clitoris and above the vaginal opening, providing a clear reference point during medical examinations or catheterization.
⮞ Knowledge of this location is clinically important because it ensures safe and accurate procedures such as urinary catheter insertion.
Q2: The fructose found in the liquid secreted by the seminal vesicles serves as an energy source for sperm motility after ejaculation.
Answer Choices:
⮚ The seminal vesicles secrete a fluid that is rich in fructose, which serves as the primary energy source for sperm.
⮚ This fructose allows sperm to maintain motility after ejaculation, giving them the strength and endurance to swim toward the ovum.
⮚ Without this energy supply, sperm would not have the metabolic support required to reach the egg, reducing the chances of successful fertilization.
⮚ Thus, the secretion of fructose by the seminal vesicles plays an essential role in promoting male fertility.
Q3: Which of the following is not true concerning the uterus?
Answer Choices:
▲ The uterus does not produce estrogen, as this hormone is secreted mainly by the ovaries through the developing follicles and corpus luteum.
▲ Instead, the uterus functions as the site of embryo implantation, where a fertilized egg attaches and begins development.
▲ It also plays a key role in menstruation, where the compact and spongy layers of the endometrium are shed when fertilization does not occur, and in childbirth, where powerful uterine contractions expel the infant.
▲ The claim that the uterus produces estrogen is not correct, since its role is structural and supportive, not hormonal.
Q4: In the human. the haploid number of chromosomes is:
Answer Choices:
👉 Humans have 46 chromosomes in diploid somatic cells, arranged in 23 pairs.
👉 During meiosis, gametes (sperm and eggs) are produced with only 23 chromosomes, which is the haploid number.
👉 This halving of the chromosome number is critical because at fertilization, the sperm and egg combine to restore the full diploid number of 46 chromosomes.
👉 The haploid number is 23, and it is specifically the result of meiosis
Q5: Which of the following functions is not usually associated with the uterus?
Answer Choices:
🢒 The uterus is associated with menstruation, where the endometrium is shed monthly, and gestation, where it supports the developing fetus after implantation.
🢒 It also plays a role in childbirth, where uterine muscle contractions expel the infant.
🢒 However, the process of fertilization does not occur in the uterus but in the fallopian tubes, where sperm meets the ovum.
🢒 For this reason, fertilization is not a function of the uterus, even though the uterus is critical in every stage after fertilization has taken place.
SOCIOLOGY
