Question 1

Which of the following best explains why the pituitary gland is often referred to as the 'Master Gland'?

Accepted Answer

It regulates the activity of several other endocrine glands through its hormone secretions.

Question 2

Which developmental origin correctly matches the part of the pituitary gland?

Accepted Answer

The anterior pituitary develops from the oral ectoderm (Rathke's pouch), while the posterior pituitary develops from the neuroectoderm.

Question 3

A patient presents with excessive urination and dehydration. Laboratory tests reveal low levels of antidiuretic hormone (ADH). Which part of the pituitary gland is most likely malfunctioning?

Accepted Answer

Posterior pituitary (neurohypophysis)

Question 4

Which hormone is correctly paired with its primary target and effect?

Accepted Answer

Follicle stimulating hormone (FSH): stimulates ovarian follicle growth in females and sperm production in males

Question 5

Which of the following hormones is NOT produced by the anterior pituitary (adenohypophysis)?

Accepted Answer

Oxytocin

Question 6

All hormones released by the pituitary gland are protein-based and act through which of the following mechanisms?

Accepted Answer

Second messenger systems

Question 7

A female patient is unable to produce milk after childbirth. Which hormone deficiency is most likely responsible?

Accepted Answer

Prolactin

Question 8

Which hormone is responsible for stimulating the adrenal cortex to secrete glucocorticoids?

Accepted Answer

Adrenocorticotropic hormone (ACTH)

Question 9

Which of the following best describes the role of oxytocin in the human body?

Accepted Answer

Stimulates uterine contractions and milk duct contractions in females

Question 10

A male patient is found to have low testosterone levels due to a pituitary disorder. Which hormone is most likely deficient?

Accepted Answer

Leutenizing hormone (LH)

Question 11

Which of the following statements about the posterior pituitary is TRUE?

Accepted Answer

It stores and releases hormones produced by the hypothalamus.

Question 12

Which hormone would most likely be elevated in a patient with gigantism?

Accepted Answer

Growth hormone (GH)

Question 13

If a patient has a tumor destroying the infundibulum, which of the following hormonal effects would most likely be observed?

Accepted Answer

Decreased release of oxytocin and ADH

Question 14

Which hormone is correctly matched with its alternate name?

Accepted Answer

Growth hormone (GH): somatotropin

Question 15

Which hormone is responsible for causing ovulation in females?

Accepted Answer

Leutenizing hormone (LH)

Question 16

A patient with a pituitary disorder is unable to concentrate urine and is constantly thirsty. Which hormone is most likely deficient, and what is its main effect?

Accepted Answer

Antidiuretic hormone (ADH); promotes water retention by the kidneys

Question 17

Which of the following best describes the difference in development between the anterior and posterior pituitary?

Accepted Answer

The anterior pituitary develops from oral ectoderm, while the posterior pituitary develops from neuroectoderm.

Question 18

Which hormone is released in response to dehydration and acts to increase blood pressure by promoting water retention?

Accepted Answer

Antidiuretic hormone (ADH)

Question 19

Which hormone is most directly responsible for stimulating the thyroid gland to produce thyroid hormones?

Accepted Answer

Thyroid stimulating hormone (TSH)

Question 20

Which of the following is a correct sequence of events for hormone release from the posterior pituitary?

Accepted Answer

Hormones are synthesized in the hypothalamus, transported down axons, and released from the posterior pituitary.

The Pituitary Gland: Structure, Development, and Hormones

Guida di studio - Domande di pratica

Study guide - Flashcard