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Which of the following is the messenger for the Endocrine System?

A.

Neurons

B.

Neuroglia

C.

Hormones

D.

Neurotransmitter

Answer and Explanation

The Correct Answer is C

A. Neurons: Neurons transmit signals in the nervous system, not the endocrine system.
B. Neuroglia: Neuroglia support neurons but do not transmit hormonal signals.
C. Hormones: Hormones are the chemical messengers of the endocrine system, traveling via the bloodstream to target organs.
D. Neurotransmitter: Neurotransmitters are messengers of the nervous system.


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Related Questions

Correct Answer is C

Explanation

A. "This test measures the amount of thyroid hormone that attaches to a protein in your blood.": That describes a thyroid hormone binding test, not TSH.

B. "This test detects antithyroid antibodies in your blood.": That describes a test for autoimmune thyroid conditions like Hashimoto's.

C. "The test determines whether your thyroid gland is overactive, appropriately active, or underactive.": TSH levels indicate how well the thyroid is functioning.

D. "This test measures the absorption of iodine and how it relates to the thyroid gland.": That describes a radioactive iodine uptake test.

Correct Answer is D

Explanation

A. Vagina: The vaginal canal is the birth canal but is not called the womb.

B. Ovary: Site of egg production, not the womb.

C. Oviduct: Transports egg; not where fetal growth occurs.

D. Uterus: Also called the womb; hysterectomy is surgical removal of the uterus.

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