W4 Endocrine Disorders Flashcards
(219 cards)
What is the primary function of the endocrine system?
The endocrine system coordinates messages from the brain to balance and regulate all bodily functions, known as homeostasis.
What can result from the inability to maintain homeostasis?
Illness, disease, and potentially death.
Where is the pituitary gland located?
Within the sella turcica of the sphenoid bone of the skull.
What are the two main relationships of the hypothalamus in relation to the pituitary gland?
Anterior pituitary gland and posterior pituitary gland.
What is the role of exocrine pancreatic cells?
Secrete pancreatic juice.
What hormones do alpha and beta endocrine cells of the pancreatic islets secrete?
- Alpha cells: glucagon
- Beta cells: insulin
What structures are labelled in the anterior view of the thyroid and parathyroid glands?
- Hyoid bone
- Thyroid cartilage
- Cricoid cartilage
- Isthmus
- Right lobe of thyroid gland
- Left lobe of thyroid gland
- Trachea
What happens when there is hypersecretion in the endocrine system?
Too much hormone secretion.
What is hyposecretion in the context of the endocrine system?
Not enough hormone secretion.
What is the effect of alterations in circulating hormone level concentration in the blood?
Leads to symptoms experienced by the patient.
Fill in the blank: Disorders of the endocrine system are usually described as _______ or hyposecretion.
[hypersecretion]
What are the recommended videos for revising endocrine anatomy and physiology?
- Endocrine System Part 1: Glands & Hormones
- Endocrine System Part 2: Hormone Cascades
What is the title of the reference book by Craft & Gordon discussing the endocrine system?
Understanding Pathophysiology: ANZ edition (4th edition).
What is the page range for Chapter 10 in the reference book about the endocrine system?
234-255.
What is Diabetes?
A group of metabolic disorders characterized by abnormally high levels of blood glucose over a prolonged period of time.
Blood glucose is often referred to as blood sugar.
What are the two main pathophysiological mechanisms that lead to diabetes?
- Insulin resistance (ineffective response to insulin at target cells)
- Insufficient insulin secretion by the Islets of Langerhans in the pancreas.
What is the function of insulin?
A hormone that shifts glucose from the bloodstream into the cells for energy, enhancing glucose absorption and serving as the body’s main fuel storage hormone.
What is Type 1 Diabetes Mellitus (T1DM)?
A lifelong chronic pancreatic disorder considered an autoimmune disease where islet cells in the pancreas are destroyed, leading to absolute insulin deficiency.
What are the two main peaks for diagnosis of T1DM?
- 4-7 years old
- 10-14 years old.
What triggers the autoimmune destruction of beta cells in T1DM?
The exact cause is unknown but is linked to genetic susceptibility and environmental factors such as viral exposure.
What are the key clinical manifestations of T1DM?
- Polyphagia (increased hunger)
- Polyuria (increased urine volume)
- Polydipsia (increased thirst).
What is Type 2 Diabetes Mellitus (T2DM)?
A lifelong chronic pancreatic disorder that is a silent but progressive condition, representing 85-90% of all diabetes cases globally.
What are the two possible pathophysiological explanations for T2DM?
- Insulin deficiency (relative shortage of insulin supply)
- Insulin resistance (ineffective response to insulin from target cells).
What are some non-modifiable risk factors for developing T2DM?
- Certain ethnicities (e.g., Aboriginal, Pacific Islander, Indian, Chinese)
- Genetic risk factors.