What is the stimulus for the release of insulin?
Low blood volume
Low blood levels of calcium
High blood levels of glucose
High blood levels of potassium
The Correct Answer is C
A. Low blood volume:
This stimulates ADH and aldosterone, not insulin.
B. Low blood levels of calcium:
This stimulates parathyroid hormone (PTH), not insulin.
C. High blood levels of glucose:
Insulin is secreted by the pancreas in response to elevated blood glucose to facilitate cellular uptake of glucose.
D. High blood levels of potassium:
Though insulin helps drive potassium into cells, its release is primarily stimulated by glucose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Ovaries: The ovaries produce ova and hormones but do not have these layers.
B. Fallopian tubes: These are passageways for eggs and do not have an endometrium or myometrium.
C. Vagina: The vagina has mucosal and muscular layers, but not a myometrium or endometrium.
D. Uterus: The endometrium (inner lining) and myometrium (muscular layer) are both parts of the uterus.
Correct Answer is D
Explanation
A. Ovum: The ovum is the female gamete, which is round and lacks a midpiece, head, or flagella.
B. Fallopian tubes: These are female reproductive structures, not cells.
C. Zygote: A zygote is the cell formed after fertilization, without a midpiece or flagella.
D. Sperm: A sperm cell has a head (with genetic material), midpiece (with mitochondria), and flagellum (tail for movement).
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