Nokea
The ovule forms in:
- A. the medullar area of the ovary;
- B. the mature ovarian follicle;
- C. the Fallopian tube;
- D. the uterus;
Correct Answer: B
Rationale: The correct answer is B: the mature ovarian follicle.
1. Ovule formation occurs within the ovary, specifically within a structure called the ovarian follicle.
2. The mature ovarian follicle contains the ovum (oocyte) which develops into the ovule.
3. The ovule is released during ovulation from the mature ovarian follicle.
In contrast, the other choices are incorrect:
A: The medullar area of the ovary does not play a direct role in ovule formation.
C: The Fallopian tube is where fertilization typically occurs, not ovule formation.
D: The uterus is not involved in ovule formation; it is the site of embryo implantation during pregnancy.
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The testicle secrets the following hormones:
- A. androgenic;
- B. progesterone;
- C. testosterone;
- D. progesterone
Correct Answer: C
Rationale: Step 1: The testicles are primarily responsible for producing male sex hormones.
Step 2: Testosterone is the main male sex hormone secreted by the testes.
Step 3: Testosterone is an androgenic hormone responsible for male characteristics.
Step 4: Progesterone is a female sex hormone, not primarily secreted by the testicles.
Step 5: Therefore, the correct answer is C (testosterone).
Approximately how long does it take sperm to get to the site of fertilization?
- A. 2 mins
- B. 20 mins
- C. 60 mins
- D. 3 hours
Correct Answer: D
Rationale: The correct answer is D: 3 hours. After ejaculation, sperm needs to travel through the female reproductive tract to reach the site of fertilization in the fallopian tube. This journey typically takes around 3 hours due to the distance and obstacles the sperm must overcome. Choice A (2 mins) is too short for sperm to travel such a distance. Choice B (20 mins) is also insufficient for the journey. Choice C (60 mins) is closer but still underestimates the time required for sperm to reach the fallopian tube.
Which blood vessel in the fetus has the highest Po2?
- A. Ductus arteriosus
- B. Ductus venosus
- C. Ascending aorta
- D. Left atrium
Correct Answer: B
Rationale: The correct answer is B: Ductus venosus. The ductus venosus carries oxygenated blood from the umbilical vein to the inferior vena cava, bypassing the liver. This blood has the highest Po2 among the choices because it is coming directly from the placenta, where oxygen exchange occurs. The other choices (A, C, D) carry deoxygenated blood or blood with lower oxygen content in the fetal circulation. The ductus arteriosus shunts blood from the pulmonary artery to the aorta, so it carries deoxygenated blood. The ascending aorta and left atrium receive mixed oxygenated and deoxygenated blood, not the highest Po2.
The uterus displays the following components:
- A. the cervix;
- B. the corpus;
- C. the head;
- D. the mid piece;
Correct Answer: A
Rationale: The correct answer is A: the cervix. The cervix is a component of the uterus that connects the uterus to the vagina. It plays a crucial role in pregnancy, as it dilates during childbirth to allow the baby to pass through. The other choices, B: the corpus, C: the head, and D: the mid piece, are incorrect as they do not refer to components of the uterus. The corpus typically refers to the main body of an organ, while the head and mid piece are terms commonly associated with structures in cells or organisms, not the uterus.
The nurse monitors a client who has gone through an endoscopic examination. Following a culdoscopy, what does a nurse need to observe for in this client?
- A. The nurse observes the client for any discomfort in the shoulders.
- B. The nurse observes the client for the signs of internal bleeding and the symptoms of shock.
- C. The nurse observes the client for changes in skin color and for any rise in body temperature.
- D. The nurse observes the quantity and frequency of urinary output.
Correct Answer: A
Rationale: Discomfort in the shoulders is a common side effect after culdoscopy due to gas insufflation.