HBIO 301 CHAPTER 17 EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
Which organs are true endocrine organs?
Hypothalamus, pituitary, thyroid, adrenal, pancreas, pineal, and parathyroid
Which organs are secondary endocrine organs?
Heart, skin, thymus, adipose tissue, digestive tract, gonads
What does the anterior pituitary lobe secrete?
ACTH, TSH, GH, PRL, FSH, LH, MSH
What does the posterior lobe of the pituitary secrete?
Oxytocin, ADH
What does the thyroid secrete?
Thyroxine (T4), Triiodothyrine (T3), Calcitonin
What makes up the adrenal glands?
Medulla
Cortex
What does the adrenal medulla secrete?
Epinephrine (E), Norepinephrine (NE)
What does the adrenal cortex secrete?
Cortisol, corticosterone, aldosterone, androgens
,What does the pineal gland secrete?
Melatonin
Where is the parathyroid?
Posterior side of thyroid
What does the parathyroid secrete?
PTH - parathyroid hormone
What does the hypothalamus secrete?
ADH, oxytocin, regulatory hormones
What does the pancreas secrete?
Insulin, glucagon
What does the thymus secrete?
Thymosins
Which endocrine organ undergoes atrophy during adulthood?
Thymus
What do the testes (gonads) secrete?
Androgens (testosterone)
Inhibin
What do the ovaries (gonads) secrete?
Estrogens, progesterone, inhibin
What does the heart secrete?
Natriuretic peptides - Atrial natriuretic peptide (ANP) and Brain natriuretic peptide (BNP)
What does adipose tissue secrete?
Leptin
, What does the digestive tract secrete?
Numerous hormones involved in coordination of system functions, glucose metabolism,
and appetite
What do the kidneys secrete?
Erythropoietin (EPO) and calcitrol
What are the structural classifications of hormones?
Amino-acid based
Steroids
How do books classify hormones in order to make 3 classes instead of two?
Divide amino-acid based hormones into peptides and amines
What are amino-acid based hormones constructed of?
Amines, peptides, and proteins
Where are receptors located for amino-acid hormones?
On cell membrane
What are steroid hormones derived from? What are they soluble?
Derived from cholesterol
Lipid soluble
Where are receptors for steroid hormones?
Inside the cells
What is another name for steroid hormones? Why?
Nuclear receptors
They get translated into nucleus where they affect gene expression
Which type of hormone is slower?
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
Which organs are true endocrine organs?
Hypothalamus, pituitary, thyroid, adrenal, pancreas, pineal, and parathyroid
Which organs are secondary endocrine organs?
Heart, skin, thymus, adipose tissue, digestive tract, gonads
What does the anterior pituitary lobe secrete?
ACTH, TSH, GH, PRL, FSH, LH, MSH
What does the posterior lobe of the pituitary secrete?
Oxytocin, ADH
What does the thyroid secrete?
Thyroxine (T4), Triiodothyrine (T3), Calcitonin
What makes up the adrenal glands?
Medulla
Cortex
What does the adrenal medulla secrete?
Epinephrine (E), Norepinephrine (NE)
What does the adrenal cortex secrete?
Cortisol, corticosterone, aldosterone, androgens
,What does the pineal gland secrete?
Melatonin
Where is the parathyroid?
Posterior side of thyroid
What does the parathyroid secrete?
PTH - parathyroid hormone
What does the hypothalamus secrete?
ADH, oxytocin, regulatory hormones
What does the pancreas secrete?
Insulin, glucagon
What does the thymus secrete?
Thymosins
Which endocrine organ undergoes atrophy during adulthood?
Thymus
What do the testes (gonads) secrete?
Androgens (testosterone)
Inhibin
What do the ovaries (gonads) secrete?
Estrogens, progesterone, inhibin
What does the heart secrete?
Natriuretic peptides - Atrial natriuretic peptide (ANP) and Brain natriuretic peptide (BNP)
What does adipose tissue secrete?
Leptin
, What does the digestive tract secrete?
Numerous hormones involved in coordination of system functions, glucose metabolism,
and appetite
What do the kidneys secrete?
Erythropoietin (EPO) and calcitrol
What are the structural classifications of hormones?
Amino-acid based
Steroids
How do books classify hormones in order to make 3 classes instead of two?
Divide amino-acid based hormones into peptides and amines
What are amino-acid based hormones constructed of?
Amines, peptides, and proteins
Where are receptors located for amino-acid hormones?
On cell membrane
What are steroid hormones derived from? What are they soluble?
Derived from cholesterol
Lipid soluble
Where are receptors for steroid hormones?
Inside the cells
What is another name for steroid hormones? Why?
Nuclear receptors
They get translated into nucleus where they affect gene expression
Which type of hormone is slower?
