Chemotherapeutic agents affect cancer cells by
- A. destroying all affected tumor tissue
- B. preventing antigen-antibody response
- C. interfering with manufacture of cellular nucleic acids
- D. encouraging normal cells to overtake cancer cells
Correct Answer: C
Rationale: Chemotherapy works by interfering with the ability of cancer cells to divide and grow.
You may also like to solve these questions
Two inner folds, or ___________ minora, cover and protect the vaginal opening
- A. uterus
- B. fallopian tubes
- C. labia
- D. vagina
Correct Answer: C
Rationale: The correct answer is C: labia. The labia minora are two inner folds that cover and protect the vaginal opening. This is because the labia minora are part of the external female genitalia and specifically designed to provide protection to the vaginal opening.
A: Uterus - Incorrect. The uterus is a separate organ and is not involved in covering or protecting the vaginal opening.
B: Fallopian tubes - Incorrect. The fallopian tubes are part of the reproductive system but are not located near the vaginal opening or involved in its protection.
D: Vagina - Incorrect. While the vagina is connected to the vaginal opening, it is not the structure that directly covers and protects it.
A male client is having trouble with erections and comes to the clinic to be seen by the doctor. The doctor diagnoses the client with erectile dysfunction. The nurse provides education regarding the disorder and teaches the client that erectile dysfunction can be caused by which of the following?
- A. Obsessive compulsive disorder
- B. Complications of STIs
- C. Side effects of drug therapy
- D. Spinal stenosis
Correct Answer: C
Rationale: Drug side effects are a common cause of erectile dysfunction.
As menstruation ends estrogen levels in the blood rise rapidly. What is the source of the estrogen?
- A. Corpus luteum
- B. Developing follicles
- C. Endometrium
- D. Stromal cells of the ovaries
Correct Answer: B
Rationale: The correct answer is B: Developing follicles. After menstruation, the developing follicles in the ovaries produce estrogen. This estrogen is responsible for thickening the endometrium in preparation for potential implantation of a fertilized egg. The corpus luteum produces progesterone, not estrogen. The endometrium is the inner lining of the uterus and is not a direct source of estrogen. Stromal cells of the ovaries are supportive cells and do not produce estrogen.
This connects the ovary to the uterus.
- A. Vagina
- B. Cervix
- C. Fallopian tube
- D. perineorrhaphy
Correct Answer: B
Rationale: The correct answer is B: Cervix. The cervix is the narrow passage that connects the uterus to the vagina. It acts as a barrier between the uterus and the outside environment. The other choices are incorrect because: A: Vagina is the birth canal and does not directly connect the ovary to the uterus. C: Fallopian tube connects the ovary to the uterus but does not directly attach to it. D: Perineorrhaphy is a surgical procedure to repair the perineum and is not related to connecting the ovary to the uterus.
When do the testes begin to descend?
- A. at birth
- B. two months after birth
- C. two months prior to birth
- D. in the fifth month of pregnancy
Correct Answer: D
Rationale: The correct answer is D: in the fifth month of pregnancy. The testes begin to descend from the abdomen into the scrotum during the fifth month of pregnancy. This process is crucial for proper development and function of the testes. Descending at this stage allows for the testes to be positioned outside the body, which is essential for sperm production as it requires a slightly lower temperature than the internal body temperature.
Summary:
A: at birth - Incorrect, as the descent of the testes occurs during fetal development, not at birth.
B: two months after birth - Incorrect, as the descent happens during pregnancy, not after birth.
C: two months prior to birth - Incorrect, as the descent occurs during pregnancy, not prior to birth.