Question 1

Oxytocin and vasopressin are carried in the hypothalamic-hypophyseal portal system.

Accepted Answer

A) True 
 B)False

Question 2

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all).
-stimulates growth of ovarian follicles and development of eggs

Accepted Answer

A) vasopressin 
B) oxytocin 
C) TSH 
D) ACTH 
E) growth hormone
F)hormone not listed

Question 3

There are no known growth-related signals that influence growth hormone secretion.

Accepted Answer

A) True 
 B)False

Question 4

Which statement regarding tropic hormones is INCORRECT?

Accepted Answer

A)  They may stimulate the secretion of other hormones. 
B)  They target other glands. 
C)  They are all produced in the anterior pituitary. 
D)  Primary hyposecretion occurs when an endocrine gland isn't receiving enough of its tropic hormone.

Question 5

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all).
-also known as adenohypophysis

Accepted Answer

A) applies to the posterior pituitary 
B) applies to the anterior pituitary 
C) applies to both the posterior and anterior pituitary

Question 6

FSH and LH are collectively called ____________________ because they control secretion of sex hormones.

Accepted Answer

The answer of FSH and LH are collectively called ____________________...

Question 7

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all).
-exerts a pressor effect on arterioles

Accepted Answer

A) vasopressin 
B) oxytocin 
C) TSH 
D) ACTH 
E) growth hormone
F)hormone not listed

Question 8

Which statement concerning neurosecretory neurons is correct?

Accepted Answer

A)  They release neurotransmitters. 
B)  They release hormones. 
C)  They are unable to conduct action potentials, unlike ordinary neurons. 
D)  They release neurotransmitters and are unable to conduct action potentials, unlike ordinary neurons.

Question 9

Hyperplasia is an increase in the number of ____________________ of a structure.

Accepted Answer

The answer of Hyperplasia is an increase in the number...

Question 10

Which of the following results in somatomedins being released from the liver?

Accepted Answer

A)  increased plasma growth hormone levels 
B)  increased plasma somatostatin levels 
C)  decreased plasma growth hormone levels 
D)  decreased plasma somatostatin levels

Question 11

The main control normally determining the plasma concentration of a particular hormone is its rate of inactivation and excretion.

Accepted Answer

A) True 
 B)False

Question 12

____________________ are hormones that consist of a chain of specific amino acids of varying length.

Accepted Answer

The answer of ____________________ are hormones that consist of a...

Question 13

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all).
-releases primarily tropic hormones into the blood

Accepted Answer

A) applies to the posterior pituitary 
B) applies to the anterior pituitary 
C) applies to both the posterior and anterior pituitary

Question 14

Indicate which characteristics apply to the hormones below by using the answer code.
-synthesized by enzymatic modification of cholesterol

Accepted Answer

A) steroids 
B) catecholamines 
C) peptides 
D) thyroid hormone

Question 15

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all).
-stimulates testosterone secretion

Accepted Answer

A) vasopressin 
B) oxytocin 
C) TSH 
D) ACTH 
E) growth hormone
F)hormone not listed

Question 16

The growth hormone signals activity of which of the following in a long bone to influence its length?

Accepted Answer

A)  articular cartilage 
B)  Endosteum 
C)  epiphyseal plate 
D)  medullary cavity

Question 17

Which statement concerning hormones is correct?

Accepted Answer

A)  They are all of similar chemical composition. 
B)  They combine with specific receptors on the target cell's surface or inside the target cell. 
C)  They are secreted at a constant rate. 
D)  All act by activating adenylate cyclase, which transforms ATP into cyclic AMP.

Question 18

Steroid hormones are first produced in an inactive form.

Accepted Answer

A) True 
 B)False

Question 19

What is NOT an effect of GH?

Accepted Answer

A)  increased fat breakdown 
B)  increased bone growth 
C)  decreased glucose entry into muscle cells 
D)  decreased protein synthesis

Question 20

A "primary" defect in an endocrine system means that the defect is at the hypothalamus.

Accepted Answer

A) True 
 B)False

Exam 5: Principals of Endocrinology; The Central Endocrine Glands

Oxytocin and vasopressin are carried in the hypothalamic-hypophyseal portal system.

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all) . -stimulates growth of ovarian follicles and development of eggs

There are no known growth-related signals that influence growth hormone secretion.

Which statement regarding tropic hormones is INCORRECT?

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all) . -also known as adenohypophysis

FSH and LH are collectively called ____________________ because they control secretion of sex hormones.

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all) . -exerts a pressor effect on arterioles

Which statement concerning neurosecretory neurons is correct?

Hyperplasia is an increase in the number of ____________________ of a structure.

Which of the following results in somatomedins being released from the liver?

The main control normally determining the plasma concentration of a particular hormone is its rate of inactivation and excretion.

____________________ are hormones that consist of a chain of specific amino acids of varying length.

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all) . -releases primarily tropic hormones into the blood

Indicate which characteristics apply to the hormones below by using the answer code. -synthesized by enzymatic modification of cholesterol

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all) . -stimulates testosterone secretion

The growth hormone signals activity of which of the following in a long bone to influence its length?

Which statement concerning hormones is correct?

Steroid hormones are first produced in an inactive form.

What is NOT an effect of GH?

A "primary" defect in an endocrine system means that the defect is at the hypothalamus.