Unit 4 Endocrine MCQ test

1

Cortisol inhibition of corticotrophin releasing hormone (CRH) secretion is an example of?

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The anterior pituitary receives hypothalamic input via:

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Production of the thyroid hormones, thyroxine (T4) and triiodothyronine (T3) occurs within:

1

Which of the following symptoms might be observed in a patient with an activating mutation in the adrenocorticotrophin hormone (ACTH) receptor?:

1

Gonadectomy (removal of either testes or ovaries) would result in:

1

Prostaglandins normally exert their biological effects via:

1

Mutations in the Pit-1 gene could cause disruption in the development of:

1

The processing of which two peptide hormones requires the proconvertase enzymes, PC1 and PC2?:

1

What binds to unoccupied glucocorticoid receptors (GRs) to prevent their translocation to the nucleus?:

1

What confounding issue renders the measurement of circulating cortisol inconclusive?:

1

The major physiological regulator of aldosterone synthesis and secretion is:

1

Mutations in the orphan nuclear receptor Steroidogenic factor-1 (SF-1) gene can cause:

1

Which two of the following peptide hormones are composed of less than 15 amino acids in their mature form?

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A receptor that couples to a Gas G-protein will directly activate:

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The proopiomelanocortin (POMC) gene encodes which of the following peptide hormones?:

1

The range of temperatures in a species preferred optimum temperature zone (POTZ) is essential in the captive environment because:

1

Amphibians are considered to be ‘cold-blooded’ because the major influence on their body temperate is external. However this term is inappropriate and amphibians should be defined as:

1

What makes up the posterior pituitary?

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What makes up the anterior pituitary?

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From what germ cell layers does the pars distalis and pars nervosa develop from respectively?

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The adrenal gland releases aldosterone from which zona?

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The adrenal gland secretes cortisol primarily from which zone?

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The adrenal gland secretes the adrenal androgens from which zone?

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The adrenal gland secretes epinephrine and norepinephrine from which zone?

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Which chain in the glycoprotein peptide hormones are identical?

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Which class of steroids is cortisol and aldosterone?

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The cholesterol enter mitochondria during steroid biosynthetic pathway from action of...?

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Which hormones are derived from tyrosine?

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Which lipid soluble hormone(s) exert their effects on plasma membrane receptor?

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Aldosterone (mineralocorticoid) and Cortisol (Glucocorticoids) are structurally similar and so can bind to each other's receptors.
How is this overcome?

1

The anabolic actions of cortisol involves what and occurs where?

1

The catabolic actions of cortisol involve what and occur where?

1

Dexamethazone is used to test?
Inhibits ACTH from anterior pituitary and CRH from hypothalamus.

1

Where are these hormones secreted from?
Oxytocin and ADH

1

Where are these hormones secreted from?
LH & FSH, GH, TSH, Prolactin and ACTH

1

Out of all the hypothalmus hormone secretions which one is the only one classed as catecholamine hormone whilst all the others are peptide?

1

The hormones of hypothalamus all act on GPCR.

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The posterior pituitary has no neural connections with hypothalamus and so hormones from the hypothalamus are transported via the hypothalamo-pituitary portal vessels

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Which hormone below is NOT released from the thyroid gland?

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Which one of these transcription factors is involved with thyroid development?

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The thyroid hormones are regulated to increase their activity by?

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The thyroid hormones are regulated to decrease their activity by?

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IgG binding to or near TSH receptors causing an increase in cAMP activating TSH signalling leading to hyperthyroidism is known as what?

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Thyroid hyperplasia and lymphocytic infiltration leading to loss of thyroid function leading to Hypothyroidism is known as what?

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Heat produced from metabolism:

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Constant body temperature:

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High metabolism:

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Heat from exogenous sources:

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Body temperature fluctuates:

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Low metabolism:

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Whats the one main advantage Heterothermy/poikilothermys have over homeothermias?

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Stress leukogram blood test for someone with high cortisol will show what?

Principles and animal form and fucntion (Unit 4 Endocrine system) Quiz sobre Unit 4 Endocrine MCQ test, criado por Jack Fawsitt em 05-12-2016.

Unit 4 Endocrine MCQ test

Cortisol inhibition of corticotrophin releasing hormone (CRH) secretion is an example of?

The anterior pituitary receives hypothalamic input via:

Production of the thyroid hormones, thyroxine (T4) and triiodothyronine (T3) occurs within:

Which of the following symptoms might be observed in a patient with an activating mutation in the adrenocorticotrophin hormone (ACTH) receptor?:

Gonadectomy (removal of either testes or ovaries) would result in:

Prostaglandins normally exert their biological effects via:

Mutations in the Pit-1 gene could cause disruption in the development of:

The processing of which two peptide hormones requires the proconvertase enzymes, PC1 and PC2?:

What binds to unoccupied glucocorticoid receptors (GRs) to prevent their translocation to the nucleus?:

What confounding issue renders the measurement of circulating cortisol inconclusive?:

The major physiological regulator of aldosterone synthesis and secretion is:

Mutations in the orphan nuclear receptor Steroidogenic factor-1 (SF-1) gene can cause:

Which two of the following peptide hormones are composed of less than 15 amino acids in their mature form?

A receptor that couples to a Gas G-protein will directly activate:

The proopiomelanocortin (POMC) gene encodes which of the following peptide hormones?:

The range of temperatures in a species preferred optimum temperature zone (POTZ) is essential in the captive environment because:

Amphibians are considered to be ‘cold-blooded’ because the major influence on their body temperate is external. However this term is inappropriate and amphibians should be defined as:

What makes up the posterior pituitary?

What makes up the anterior pituitary?

From what germ cell layers does the pars distalis and pars nervosa develop from respectively?

Aldosterone (mineralocorticoid) and Cortisol (Glucocorticoids) are structurally similar and so can bind to each other's receptors.
How is this overcome?

Dexamethazone is used to test?
Inhibits ACTH from anterior pituitary and CRH from hypothalamus.

Where are these hormones secreted from?
Oxytocin and ADH

Where are these hormones secreted from?
LH & FSH, GH, TSH, Prolactin and ACTH