Endocrine System MCQs | Endocrine System Objective Type Questions & Answers

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Questions
21 Calcitonin is a hormone of which of following
A Adrenal cortex
B Thyroid gland
C Pituitary gland
D Thymus gland

Answer: Thyroid gland
22 The Glucagon is:
A speeds up protein synthesis within cells
B decreases the conversion of glycogen into glucose
C slows down glucose formation from lactic acid
D accelerates the conversion of glycogen into glucose

Answer: accelerates the conversion of glycogen into glucose
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23 Most hormones of the endocrine system are regulated by a:
A Negative feedback mechanism
B Positive feedback mechanism
C Hormone-receptor complex
D Hormone-gene complex

Answer: Negative feedback mechanism
24 The clusters of cells in the pancreas that produce hormones are the:
A Nodules
B Islets of Langerhans
C Pancreatic medulla
D Pancreatic cortex

Answer: Islets of Langerhans
25 Which hormones of the adrenal glands supplement the sex hormones from the gonads?
A Mineralocorticoids, such as aldosterone
B Glucocorticoids, such as cortisol
C Gnadocorticoids, such as the androgens
D Epinephrine and norepinephrine

Answer: Gnadocorticoids, such as the androgens
26 Which of the following hormones are responsible for the "fight-or-flight" response?
A Epinephrine and norepinephrine
B Insulin and glucagon
C Esrtogen and progesterone
D Thyroxin and melatonin

Answer: Epinephrine and norepinephrine
27 The posterior pituitary stores and releases:
A Growth hormone and prolactin
B Prolactin and oxytocin
C Oxytocin and antidiuretic hormone (ADH)
D ADH and growth hormone

Answer: Oxytocin and antidiuretic hormone (ADH)
28 Which of these is not an endocrine property?
A hormones reach targets through the blood
B effects are slow and cyclic
C rapid acting effects
D effects caused by chemicals

Answer: rapid acting effects
29 Which of these is not an endocrine gland?
A Pancreas
B Testes
C Parathyroid
D Salivary gland

Answer: Salivary gland
30 The pituitary hormone that stimulates the male testes to produce sperm and stimulates the development of the follicle in the female on a monthly cycle is
A growth hormone
B luteinizing hormone
C prolactin
D follicle-stimulating hormone

Answer: follicle-stimulating hormone
31 How do hormones from the thyroid and parathyroid regulate the calcium concentration of the blood?
A Both parathroid hormone and the three thyroid hormones function to regulate blood calcium levels
B Thyroxine and triiodothyronine together regulate calcium levels, as needs dictate
C Parathyroid hormone lowers blood calcium; calcitonin raises blood calcium
D Calcitonin lowers blood calcium; parathyroid hormone raises blood calcium

Answer: Calcitonin lowers blood calcium; parathyroid hormone raises blood calcium
32 Which of these is not a function of the hypothalamus?
A Affect heart rate
B Control temperature
C Affect water balance
D Secrete FSH

Answer: Secrete FSH
33 Among the following glands which can be classified as an endocrine and an exocrine gland?
A Thyroid
B Thymus
C Pancreas
D Pituitary

Answer: Pancreas
34 Which gland controls basal metabolic rate (BMR)?
A Pancreas
B Testes
C Parathyroid
D Thyroid

Answer: Thyroid
35 Which of these hormones is made by the posterior pituitary?
A FSH
B LH
C ACTH
D ADH

Answer: Pineal gland
36 Name the gland that is located at the base of the throat, just inferior to the laryngeal prominence (Adam's apple).
A Pituitary
B Pineal gland
C Hypothalamus
D Thyroid

Answer: Thyroid.
37 Which gland is located just superior to the kidneys?
A Pituitary
B Adrenal
C Pancreas
D ovaries

Answer: Adrenal
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