ATI RN
Biology Human Reproductive System Questions
Question 1 of 5
Recording the strength of muscle contraction as a result of electrical stimulation is known as _________.
Correct Answer: C
Rationale: Rationale for Correct Answer (C): 1. Electromyography (EMG) specifically measures muscle contraction strength. 2. It involves placing electrodes on the skin to record electrical activity produced by muscles. 3. EMG is commonly used in clinical and research settings to assess muscle function and diagnose neuromuscular disorders. Summary of Incorrect Choices: A. Electromyograph: Incorrect term, should be "Electromyography". B. Electroencephalography: Measures brain activity, not muscle contraction. D. Electroencephalography: Same as choice B, measures brain activity, not muscle contraction.
Question 2 of 5
A 22 year old male presents in your clinic, c/o pain in his testicle and penis. The pain began last night and has steadily become worse. He hurts when he urinates. He has not attempted intercourse since the pain began. He has tried Tylenol and Ibuprofen without improvement. Denies fever or night sweats. He has had 4 previous sexual partners and has had a new partner for the last month. She is using oral contraceptives and they do not use a condom. On exam, you see a young man lying on his side, mildly ill. His temp is 100.2. There are no visible lesions on the penis, or discharge from the meatus. The scrotum appears normal. Palpation of the testes reveals severe tenderness at the superior pole of the normal-sized left testicle. He also has tenderness when you palpate the structures superior to the testicle through the scrotal wall. The right testicle is unremarkable. An examining finger is placed through each inguinal ring without bulges noted with bearing down. Urine analysis shows WBCs and bacteria. What diagnosis of the male genitalia is most likely?
Correct Answer: B
Rationale: The correct answer is B: Acute epididymitis. The patient's symptoms of pain in the testicle and penis, worsened pain with urination, and presence of WBCs and bacteria in the urine analysis are indicative of an infection. The severe tenderness at the superior pole of the left testicle and tenderness on palpation of structures superior to the testicle through the scrotal wall suggest involvement of the epididymis. The risk factors of multiple sexual partners and recent unprotected intercourse also support the diagnosis of epididymitis, which is commonly caused by sexually transmitted infections. Acute orchitis (choice A) typically presents with swelling and tenderness of the entire testicle, not just the epididymis. Torsion of the spermatic cord (choice C) presents with sudden onset severe testicular pain and may have a high-riding testicle. Prostatitis (choice D) presents with symptoms related to the prostate gland, such as pelvic
Question 3 of 5
The hormone that works with estrogen to prepare the endometrium for implantation of a fertilized egg is
Correct Answer: D
Rationale: Progesterone is the correct answer because it is the hormone that works with estrogen to prepare the endometrium for implantation of a fertilized egg. Progesterone helps thicken the endometrium, creating a favorable environment for implantation. LH and FSH are involved in ovulation and follicle development, not endometrial preparation. ADH is antidiuretic hormone, which regulates water balance in the body, not related to endometrial preparation.
Question 4 of 5
Estrogen is required for normal reproductive function in the male. Where is the principal site of estrogen synthesis in the male?
Correct Answer: C
Rationale: Rationale: 1. The correct answer is C: Liver cells. The liver is the principal site of estrogen synthesis in the male. 2. Liver cells contain the enzyme aromatase, which converts androgens into estrogens. 3. Estrogen plays a crucial role in maintaining normal reproductive function in males. 4. Leydig cells (Choice A) are responsible for testosterone production, not estrogen synthesis. 5. Osteoblasts (Choice B) are bone cells involved in bone formation, not estrogen synthesis. 6. Prostate cells (Choice D) are involved in prostate function, not estrogen synthesis.
Question 5 of 5
If a woman has a tumor secreting large amounts of estrogen from the adrenal gland, which of the following will occur?
Correct Answer: B
Rationale: Correct Answer: B - Her luteinizing hormone secretion rate will be totally suppressed Rationale: 1. The tumor secretes large amounts of estrogen, which can lead to negative feedback on the hypothalamus and pituitary gland. 2. Luteinizing hormone (LH) is crucial for ovulation and normal menstrual cycles. 3. High estrogen levels can suppress LH secretion, disrupting ovulation and menstrual cycles. Summary of other choices: A: Progesterone levels may actually be elevated due to the tumor-induced high estrogen levels. C: The disruption of LH secretion can lead to abnormal menstrual cycles. D: High estrogen levels can lead to bone loss due to inhibition of bone formation and increased bone resorption.