Growth hormone:

Is stimulated by darkness

Is stimulated by low levels of calcium

Is secreted by the kidneys

Stimulates growth

Answer and Explanation

The Correct Answer is D

A. Is stimulated by darkness: Melatonin is stimulated by darkness; GH may have a circadian rhythm but is not specifically triggered by darkness.

B. Is stimulated by low levels of calcium: Low calcium levels stimulate parathyroid hormone (PTH), not GH.

C. Is secreted by the kidneys: GH is secreted by the anterior pituitary, not the kidneys.

D. Stimulates growth: GH promotes growth of bones, muscles, and tissues.

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Correct Answer is C

Explanation

A. Is a gonadotropin: Gonadotropins include FSH and LH, not oxytocin.

B. Is secreted by the kidneys: Oxytocin is secreted by the posterior pituitary.

C. Stimulates the uterine muscle to contract, thereby assisting in labor: Oxytocin is key in labor and delivery.

D. Stimulates kidneys to reabsorb Na+ and water: That is the role of aldosterone and ADH, not oxytocin.

A. Jaundice, implantation B. Temperature, fertility C. Infection, sterility D. Cyanosis, ischemia

Correct Answer is B

Explanation

A. Jaundice, implantation: Jaundice and implantation are unrelated to testes or scrotum.

B. Temperature, fertility: The scrotum maintains a temperature slightly cooler than body temperature, which is necessary for sperm production and fertility.

C. Infection, sterility: While infection can cause sterility, the descent of the testes primarily addresses temperature regulation.

D. Cyanosis, ischemia: These are circulatory issues not directly related to testicular descent.

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Growth hormone:

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Naxlex Comprehensive Predictor Exams

Oxytocin:

Correct Answer is C

Explanation

Which of the following best describes why it is necessary that the testes descend into the scrotum?

Correct Answer is B

Explanation

T3 and T4 are:

What is the hormone that is necessary for sperm formation and for the development of the male secondary sex characteristics?

Which of the following hormones, increase skin color when exposed to sunlight?

To which organ do these terms refer: womb and hysterectomy?

Which of the following consists of a midpiece, head, and flagella?

What is the midcyle menstrual event stimulated by a surge of LH?

Which of the following is caused by lack of ADH, causing low blood volume?

What is the term that refers to the implantation and growth of the fetus into the walls of the fallopian tubes?