Nokea
The rete testis interposes between:
- A. the convoluted seminiferous tubules;
- B. the epididymal duct;
- C. the straight tubules;
- D. the efferent ducts;
Correct Answer: D
Rationale: The rete testis interposes between the seminiferous tubules and the efferent ducts in the male reproductive system. The correct answer is D because the rete testis acts as a connection between the seminiferous tubules where sperm is produced and the efferent ducts that transport the sperm out of the testes. The other choices (A, B, and C) are incorrect because they do not accurately describe the anatomical relationship between the rete testis and the structures mentioned.
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The _________ is a temporary organ that connects a mammalian mother to its foetus.
- A. Placenta
- B. Chorion
- C. Endometrium
- D. None of the above These are some important human reproduction MCQs for class
Correct Answer: A
Rationale: The correct answer is A: Placenta. The placenta is a temporary organ that connects a mammalian mother to its foetus by facilitating the exchange of nutrients, gases, and waste products between the mother and the developing baby. It also produces hormones necessary for pregnancy.
Explanation of other choices:
B: Chorion - The chorion is a membrane that surrounds the embryo and contributes to the formation of the placenta, but it is not the organ that directly connects the mother to the foetus.
C: Endometrium - The endometrium is the inner lining of the uterus where implantation of the fertilized egg occurs, but it is not the organ that connects the mother to the foetus.
D: None of the above - This choice is incorrect as the placenta is indeed the temporary organ that serves as the connection between the mother and the foetus in mammalian reproduction.
Which of the following findings would confirm that a female client has mastitis? Choose all that apply.
- A. A crack in the nipple or the areola
- B. Multiple lumps within the breast tissue
- C. Flat and soft breasts
- D. Support the arm and the shoulder with pillows.
Correct Answer: A
Rationale: A crack in the nipple or areola is a common sign of mastitis.
In the circulatory system of a fetus, which of the following is greater before birth than after birth?
- A. Arterial Po2
- B. Right atrial pressure
- C. Aortic pressure
- D. Left ventricular pressure
Correct Answer: B
Rationale: The correct answer is B: Right atrial pressure. Before birth, the fetal circulatory system has a shunt called the foramen ovale that allows blood to bypass the lungs, resulting in higher pressure in the right atrium. After birth, when the foramen ovale closes, the right atrial pressure decreases.
Incorrect Choices:
A: Arterial Po2 - Typically, arterial Po2 is lower in the fetus due to the placenta's oxygenation, but it increases after birth.
C: Aortic pressure - Aortic pressure remains relatively stable before and after birth.
D: Left ventricular pressure - Left ventricular pressure increases after birth due to the transition from fetal to neonatal circulation.
The only movable facial bone is _____________.
- A. Mandible
- B. Maxilla
- C. Vomer
- D. Ethmoid
Correct Answer: A
Rationale: The correct answer is A: Mandible. The mandible is the only movable facial bone as it forms the lower jaw and is connected to the skull by the temporomandibular joint, allowing for movements like chewing and speaking. Maxilla, Vomer, and Ethmoid are all facial bones, but they are fixed in place and do not have the same range of motion as the mandible. Maxilla forms the upper jaw, Vomer is a bone in the nasal cavity, and Ethmoid is a bone between the eyes. Therefore, the mandible is the only bone among the options that is capable of movement, making it the correct answer.
Within each ovary there are thousands of small sacs called
- A. Ova
- B. Graafian follicle
- C. Corpus luteum
- D. Cysts
Correct Answer: B
Rationale: The correct answer is B: Graafian follicle. Within the ovary, thousands of small sacs called follicles develop and grow, with one dominant follicle eventually maturing into a Graafian follicle. This structure contains the ovum (egg) and is released during ovulation. Ova (A) are the mature eggs released from the Graafian follicle. Corpus luteum (C) forms after ovulation and produces hormones to support pregnancy. Cysts (D) are abnormal fluid-filled sacs that can develop in the ovaries, different from the normal follicles.