Nokea
Elbow, knee are _____ type of joints
- A. Ball-an
- B. socket
- C. Hinge
- D. Pivot
Correct Answer: C
Rationale: The correct answer is C: Hinge. Elbow and knee joints are classified as hinge joints because they primarily allow movement in one plane, similar to a door hinge. These joints enable flexion and extension movements, which are characteristic of hinge joints. The other choices (A: Ball-and-socket, B: Socket, D: Pivot) do not accurately describe the structure and function of the elbow and knee joints. Ball-and-socket joints allow for a wider range of motion in multiple directions, sockets are components of ball-and-socket joints, and pivot joints allow rotational movement around a central axis, none of which align with the movement pattern of the elbow and knee joints. Therefore, the correct classification for elbow and knee joints is hinge joints due to their specific range of motion.
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Rhabdomyosarcoma is the malignant tumor of the
- A. Smooth muscle
- B. Cardiac
- C. Visceral muscle
- D. Striated muscle
Correct Answer: D
Rationale: Rhabdomyosarcoma is a malignant tumor arising from striated muscle cells, hence the correct answer is D. Striated muscle cells are also known as skeletal muscle cells, which are voluntary muscles responsible for movement. Smooth muscle (Choice A) and visceral muscle (Choice C) are types of involuntary muscles found in internal organs, while cardiac muscle (Choice B) is the muscle specific to the heart. Therefore, choices A, B, and C are incorrect for this question.
The evolutionary stages of the ovarian follicles are:
- A. secondary;
- B. tertiary (de Graaf);
- C. primordial;
- D. evolutionary;
Correct Answer: C
Rationale: The correct answer is C: primordial. Ovarian follicles go through several stages of development. Primordial follicles are the earliest stage, containing primary oocytes surrounded by a single layer of squamous cells. This stage represents the resting pool of follicles. Secondary follicles come next, with primary oocytes surrounded by multiple layers of granulosa cells. Tertiary (de Graaf) follicles are the most advanced stage, containing a fluid-filled antrum and a mature oocyte. Evolutionary is not a recognized stage in ovarian follicle development. Secondary is incorrect as it comes after primordial, and tertiary is incorrect as it is not the earliest stage.
Which of the following statements relating to testosterone is correct?
- A. testosterone levels rise and fall every month
- B. testosterone levels rise after puberty and slow decline throughout a male's life.
- C. testosterone levels are at their highest during gestation.
- D. testosterone levels are at their highest level just after birth.
Correct Answer: B
Rationale: The correct answer is B because testosterone levels do rise after puberty and slowly decline throughout a male's life due to aging. This is because testosterone plays a crucial role in male development during puberty and is responsible for maintaining male characteristics. The other choices are incorrect as testosterone levels do not rise and fall every month (A), are not at their highest during gestation (C), and are not at their highest just after birth (D).
The following take part in the fecundation process:
- A. a single ovule;
- B. a single fecundated spermatozoon;
- C. one ovule with two nuclei, which means the pregnancy is monovitelline twin;
- D. two ovules, which means the pregnancy is bivitelline twin;
Correct Answer: C
Rationale: The correct answer is C, one ovule with two nuclei, which means the pregnancy is monovitelline twin. This is correct because during fertilization, a single sperm fertilizes an ovum, resulting in the formation of a zygote with two nuclei. Monovitelline twins originate from the splitting of a single fertilized egg, leading to two embryos with shared genetic material. The other choices, A and B, are incorrect as they do not accurately represent the process of fecundation. Choice A refers to a single ovule before fertilization, and choice B refers to a single spermatozoon, which is involved in fertilization but does not lead to the formation of twins. Choice D is also incorrect as it describes bivitelline twins, which result from the fertilization of two separate eggs by two different sperm, leading to genetically distinct individuals.
When performing a well woman examination, the nurse expects what findings?
- A. The inner surface of the vestibule is deep pink and moist with a smooth texture.
- B. The inguinal skin appears wrinkled and moist with sparse hair distribution.
- C. The labia minora is deeply pigmented, and the tissue is ragged and asymmetrical.
- D. Pubic hair is distributed evenly over the mons and shaped as a triangle with the apex over the mons.
Correct Answer: A
Rationale: The correct answer is A because during a well woman examination, the inner surface of the vestibule should appear deep pink, moist, and have a smooth texture, indicating normal vaginal mucosa. This indicates good vascularization and moisture levels.
Choice B is incorrect as the inguinal skin should not be wrinkled and moist with sparse hair distribution during a well woman examination.
Choice C is incorrect as the labia minora should not be deeply pigmented, ragged, or asymmetrical. It should appear pink, smooth, and symmetrical.
Choice D is incorrect as the pubic hair being evenly distributed over the mons shaped as a triangle is not a specific finding expected during a well woman examination.