ATI RN
Human Reproductive System Questions
Question 1 of 5
Shin bone is also known as
Correct Answer: B
Rationale: The correct answer is B: Tibia. The shin bone is commonly referred to as the tibia. This bone is located on the inner side of the leg and is the larger of the two lower leg bones. The femur (A) is the thigh bone, the fibula (C) is the smaller of the two lower leg bones, and the patella (D) is the kneecap. Therefore, the tibia is the correct answer as it specifically refers to the shin bone.
Question 2 of 5
When sexual feelings occur, it is important to
Correct Answer: A
Rationale: The correct answer is A because it emphasizes the importance of consciously choosing to act responsibly when sexual feelings arise. This involves considering the consequences, respecting boundaries, and making informed decisions. Going to a quiet place to talk (B) may not address responsible actions. Exploring feelings and doing what feels best (C) may lead to impulsive or harmful choices. Seeing a doctor (D) is not necessary for regular sexual feelings. A conscious and responsible approach promotes healthy relationships and personal well-being.
Question 3 of 5
People lacking melanocytes are deaf. These cells function as part of:
Correct Answer: D
Rationale: The correct answer is D: stria vascularis. Melanocytes are present in the stria vascularis of the cochlea, which is essential for maintaining the endocochlear potential and supporting the function of the hair cells. Without melanocytes, the stria vascularis cannot maintain the proper ion balance necessary for hearing, leading to deafness. A: Hair cells are responsible for converting sound vibrations into electrical signals and are not directly related to melanocytes. B: The modiolus is a bony structure in the cochlea that houses the spiral ganglion, which transmits signals from the hair cells to the brain. It is not directly involved with melanocytes. C: The spiral limbus is a structure in the cochlea that supports the organ of Corti and is not directly related to melanocytes.
Question 4 of 5
Which is a sign of benign prostatic hyperplasia?
Correct Answer: D
Rationale: The correct answer is D: Nocturia. Benign prostatic hyperplasia (BPH) is a non-cancerous enlargement of the prostate gland, leading to urinary symptoms like frequent urination, especially at night (nocturia). Weight loss, bone pain, and fever are not typical signs of BPH. Nocturia is a common symptom due to the prostate gland pressing against the urethra, causing urinary retention. It is important to differentiate BPH symptoms from other potential causes to provide appropriate treatment.
Question 5 of 5
One treatment for erectile dysfunction requires the injection of a substance into the corpora cavernosa of the penis. The injection of which of the following causes an erection?
Correct Answer: C
Rationale: Alprostadil is the correct answer because it is a prostaglandin E1 analog that dilates blood vessels in the corpora cavernosa, promoting blood flow and causing an erection. Norepinephrine (choice A) constricts blood vessels and inhibits erection. A substance that inhibits nitric oxide formation (choice B) is counterproductive as nitric oxide is essential for vasodilation. Angiotensin II (choice D) constricts blood vessels and does not promote erection. Therefore, C is the correct choice for inducing an erection through vasodilation in the corpora cavernosa.