BHSC 1200 MIDTERM 2 EXAM
QUESTIONS AND ANSWERS GRADED A+
2026
Lipid soluble hormones - ANS -steroid and thyroid hormones
-act on intracellular receptors that directly activate genes
-can enter cell
- will change gene and lead to the synthesis of new mRNA
water soluble hormones - ANS (all amino acid-based hormones except thyroid hormone)
Act on plasma membrane receptors
Act via G protein second messengers
Cannot enter cell
levels of hormones in blood regulation - ANS depend on:
hormone concentration in blood
abundance of target cells
influences exerted by other hormones
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, permissive effect: two hormones work together to get a big effect
antagonistic effect: two hormones opposing the actions of the other
Growth Hormone (GH) - anterior pituitary - ANS secretes insulin-like growth factors which
synthesize in the liver and go to the blood and attach on target cells to secrete growth
Thyroid Stimulating Hormone (TSH)- anterior pituitary - ANS stimulates synthesis and
secretion of thyroid hormones ( T3 and T4)
hypothalamus controls this hormone by secreting its own thyrotropin releasing hormone
Adrenocorticotropic hormone (ACTH) - ANS Stimulates adrenal cortex to secrete
glucocorticoids (mainly cortisol)
hypothalamus regulates it
Follicle-stimulating hormone (FSH)- anterior pituitary - ANS secreted by the pituitary gland to
stimulate maturation of the egg cell (ovum) and for males to stimulate sperm production
luteinizing hormone (LH)- anterior pituitary - ANS Targets gonads, causes development of
corpus luteum, testes make testosterone
posterior pituitary hormones - ANS antidiuretic hormone and oxytocin
Osmoreceptors - ANS respond to the osmolarity of the blood (water homeostasis)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
QUESTIONS AND ANSWERS GRADED A+
2026
Lipid soluble hormones - ANS -steroid and thyroid hormones
-act on intracellular receptors that directly activate genes
-can enter cell
- will change gene and lead to the synthesis of new mRNA
water soluble hormones - ANS (all amino acid-based hormones except thyroid hormone)
Act on plasma membrane receptors
Act via G protein second messengers
Cannot enter cell
levels of hormones in blood regulation - ANS depend on:
hormone concentration in blood
abundance of target cells
influences exerted by other hormones
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, permissive effect: two hormones work together to get a big effect
antagonistic effect: two hormones opposing the actions of the other
Growth Hormone (GH) - anterior pituitary - ANS secretes insulin-like growth factors which
synthesize in the liver and go to the blood and attach on target cells to secrete growth
Thyroid Stimulating Hormone (TSH)- anterior pituitary - ANS stimulates synthesis and
secretion of thyroid hormones ( T3 and T4)
hypothalamus controls this hormone by secreting its own thyrotropin releasing hormone
Adrenocorticotropic hormone (ACTH) - ANS Stimulates adrenal cortex to secrete
glucocorticoids (mainly cortisol)
hypothalamus regulates it
Follicle-stimulating hormone (FSH)- anterior pituitary - ANS secreted by the pituitary gland to
stimulate maturation of the egg cell (ovum) and for males to stimulate sperm production
luteinizing hormone (LH)- anterior pituitary - ANS Targets gonads, causes development of
corpus luteum, testes make testosterone
posterior pituitary hormones - ANS antidiuretic hormone and oxytocin
Osmoreceptors - ANS respond to the osmolarity of the blood (water homeostasis)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
