Chapter 8 Flashcards
The Endocrine System
What hormone would be able to cross the plasma membrane by simple diffusion?
Testosterone—a steroid hormone
What hormone would require a carrier protein to travel within the blood?
Estrogen—a steroid hormone
Why is there a higher level of thyroid hormone secreted in cases of pituitary tumors?
Thyroid hormone is secreted in response to hormonal stimulus from the anterior pituitary
Would insulin, a hormone that is secreted in response to humoral stimulus, be affected by a pituitary tumor?
No, hormones controlled by humoral stimuli would not be affected directly by the pituitary tumor
The client has had his adrenal cortex removed. What statement indicate further instructions are needed?
“I will finally be able to stop taking steroids.”
David woke up late for work and did not have time to eat breakfast. He ate dinner at 6 p.m. the previous night and has not eaten since.
What will be the response of David’s hormones?
David’s pancreas will release glucagon to raise blood glucose levels
Thyroid-stimulating hormone stimulates the thyroid gland to secrete ______.
both thyroxine and triiodothyronine
Identify the causes of diabetes mellitus
- Insufficient production of insulin
- Insufficient response of cells to insulin
How do the endocrine and nervous systems compare?
- The nervous system is faster
- The effects of the endocrine system last longer
What is the function of the Epinephrine hormone?
Increases heart and respiration rate and increases blood glucose levels
What is the function of the Glucagon hormone?
Tells the liver to convert glycogen to glucose, raising blood glucose levels
What is the function of the Insulin hormone?
Tells cells to take in glucose, lowering blood glucose levels
What is the function of the Aldosterone hormone?
Tells the kidney to reabsorb Na+ and excrete K+
The effects of epinephrine include?
- Increased blood glucose levels
- Increased heart and respiration rates
- Increased metabolic rate
Which gland is located beneath the posterior end of the corpus callosum in the brain?
Pineal gland
