ATI RN
Biology Human Reproductive System Questions
Question 1 of 5
Medial lower arm bone is
Correct Answer: C
Rationale: The correct answer is C: Ulna. The ulna is the medial lower arm bone located on the pinky side. It articulates with the humerus at the elbow joint and with the radius at the wrist joint. The humerus (A) is the upper arm bone, not located in the lower arm. The radius (B) is the lateral lower arm bone, not the medial one. Carpals (D) refer to the wrist bones, not the lower arm bones. Therefore, the ulna is the correct answer as it is the specific bone that fits the description of being the medial lower arm bone.
Question 2 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 3 of 5
Which of the following components of the fetoplacental (endocrine) unit is similar to thyroid stimulating hormone (TSH) and stimulates T4 secretion by the maternal thyroid?
Correct Answer: A
Rationale: Rationale: 1. Human chorionic gonadotropin (hCG) acts like TSH, stimulating T4 secretion by the maternal thyroid. 2. hCG is produced by the placenta and has a similar structure and function to TSH. 3. hCG binds to the TSH receptor on the thyroid gland, triggering T4 release. 4. Other options do not specifically target the thyroid gland for T4 secretion. Summary: A: hCG mimics TSH and directly stimulates T4 release. B: hCS, hPL - involved in placental growth and lactation, not thyroid stimulation. C: IGF I and II - growth factors, not directly related to thyroid function. D: EGF - promotes cell growth and differentiation, not linked to thyroid hormone secretion.
Question 4 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 5 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.