What structure attaches the ovaries and the uterus to the pelvic wall?
- A. Broad ligament
- B. Mesovarium
- C. Ovarian ligament
- D. Suspensory ligament
Correct Answer: D
Rationale: The correct answer is D: Suspensory ligament. The suspensory ligament attaches the ovaries to the pelvic wall and also contains the ovarian artery, vein, and nerves. This structure supports and suspends the ovaries in the pelvic cavity. The broad ligament (A) is a sheet of peritoneum that connects the uterus, fallopian tubes, and ovaries to the pelvic wall. The mesovarium (B) is a fold of peritoneum that attaches the ovaries to the broad ligament. The ovarian ligament (C) attaches the ovaries to the uterus. Therefore, the suspensory ligament is the correct answer as it specifically connects the ovaries to the pelvic wall.
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Female gonads are called
- A. Testes
- B. Vagina
- C. Cervix
- D. Ovaries
Correct Answer: D
Rationale: The correct answer is D: Ovaries. Female gonads are responsible for producing eggs and releasing hormones like estrogen and progesterone. The other choices, A: Testes, are male gonads responsible for producing sperm. B: Vagina is a part of the female reproductive system but not a gonad. C: Cervix is a part of the female reproductive system that connects the uterus to the vagina, but it is not a gonad. Therefore, the correct answer is ovaries as they are the female gonads responsible for egg production and hormone secretion.
Which of the following STIs are curable?
- A. Chlamydia and gonorrhea
- B. Gonorrhea and herpes
- C. Herpes and venereal warts
- D. AIDS and syphilis
Correct Answer: A
Rationale: Chlamydia and gonorrhea are bacterial infections that can be cured with antibiotics.
Ovulation occurs as a result of a surge of what hormone
- A. inhibin
- B. follicle stimulating hormone
- C. luteinising hormone
- D. progesterone
Correct Answer: C
Rationale: The correct answer is C: luteinising hormone (LH). Ovulation is triggered by a surge of LH from the anterior pituitary gland, which causes the mature follicle to rupture and release the egg. Inhibin (A) inhibits FSH secretion, FSH (B) stimulates follicle development, and progesterone (D) is produced after ovulation to support the uterine lining. Therefore, the surge of LH is the key hormone that directly triggers ovulation.
The male sex of the child involves the following during fecundation:
- A. the spermatozoon should contain the X sex chromosome;
- B. the spermatozoon should contain the Y sex chromosome;
- C. the ovule should contain the contain the Y sex chromosome;
- D. the spermatozoon should contain the Y sex chromosome and the ovule should contain the contain the X sex chromosome;
Correct Answer: B
Rationale: Step 1: At fertilization, the sperm contributes either an X or Y sex chromosome.
Step 2: The ovum always contributes an X sex chromosome.
Step 3: If the sperm carries the Y chromosome, the resulting child will be male.
Therefore, the correct choice is B.
Summary:
A: Incorrect. If the sperm contains the X chromosome, the child will be female.
C: Incorrect. Ovule always contains an X chromosome.
D: Incorrect. This choice combines correct and incorrect information, as the sperm must contain the Y chromosome for a male child.
The testicle vascularization:
- A. the arterial one is provided by the gonadal artery, a branch off the abdominal aorta;
- B. the venous one is tributary to the internal iliac vein;
- C. the arterial one is provided by the testicular artery, a branch off the internal iliac artery;
- D. the venous one is tributary to the inferior vena cava;
Correct Answer: A
Rationale: The correct answer is A because the arterial vascularization of the testicle is indeed provided by the gonadal artery, which is a branch off the abdominal aorta. This is anatomically accurate as the gonadal artery supplies blood to the testicles.
Choice B is incorrect because the venous drainage of the testicle is to the testicular vein, which drains into the inferior vena cava, not the internal iliac vein as stated in option B.
Choice C is incorrect because the testicular artery, not the internal iliac artery, is responsible for the arterial supply to the testicle.
Choice D is incorrect because the venous drainage of the testicle is not tributary to the inferior vena cava; instead, it drains into the left renal vein.