Ch. 33 The Endocrine System Flashcards
(47 cards)
Destruction of the alpha cells of the pancreatic islets would cause loss of which hormone?
Glucagon
Insulin is released by which cells of the pancreatic islets?
Beta cells
What are hormones regulated through?
Feedback loop
What do Endocrine Glands secrete?
Hormones
Which hormone produces an increase in HR, RR, & BP?
Epinephrine & norepinephrine
What are signs of stress?
Decreased wound healing
Immunosuppression & increased susceptibility to illness
Increased HR & RR
Weight loss
What does hyposecretion in ADH result in?
Diabetes insipidus
What are both positive and negative feedback loops initiated by?
Stimulus
Which endocrine structure is also a part of the diencephalon of the brain?
Hypothalamus
The adrenal cortex produces which 2 major hormones?
Aldosterone & Cortisol
Oversecretion of the hormone from the adrenal cortex causes which disease?
Cushing Syndrome
Which lab test may be performed to diagnose diabetes mellitus?
Hgb A1C levels
Which endocrine structure is located just below the larynx?
Thyroid
Hormones function by . . .
Regulating chemical reactions within cells
Any stimulus that produces stress
Stressor
A chemical secreted by a cell that affects the functions of other cells
Hormone
A substance that is activated by a hormone-receptor complex and causes enzymes inside a cell to be turned on
G-protein
The gland that produces calcitonin
Thyroid gland
A hormone made of amino acids or proteins
Nonsteroidal hormone
A mechanism that controls hormone levels
Feedback loop
A gland that lies between the lungs and above the heart and secretes thymosin
Thymus
The ovaries and the testes
Gonads
A hormone derived from cholesterol that is soluble in lipids and crosses cell membranes very easily
Steroidal hormones
Local hormones that typically do not travel in the bloodstream
Prostaglandins