WGU D446 ENDOCRINE SYSTEM
COMPREHENSIVE STUDY GUIDE 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◍ infundibulum.
Answer: Name the structure.
◍ two messenger model.
Answer: mechanism of hormone action used by protein hormones; attach to
cell membrane receptors which activate enzymes in the cell to produce the
desired effect
◍ follicle stimulating hormone.
Answer: secreted in increasing amounts during puberty, by the anterior
pituitary gland, to stimulate development of reproductive cell follicles
◍ acromegaly.
Answer: Hypersecretion of the GH in adults which causes an overgrowth of
bones in the hands, feet, and face
◍ luteinizing hormone.
Answer: A protein hormone secreted by the anterior pituitary that stimulates
ovulation in females and androgen production in males.
◍ adrenal medulla.
Answer: Name the structure highlighted.
◍ adrenal cortex.
Answer: Name the structure.
◍ left lobe of thyroid gland.
Answer: Name just the highlighted area.
◍ pineal gland.
, Answer: A small mass of tissue near the center of the brain; it secretes the
hormone melatonin.
◍ pancreas.
Answer: Name the structure at the end of the arrow.
◍ osteoporosis.
Answer: a condition in which the body's bones become weak and break
easily; may be caused by hypersecretion of parahormone
◍ diabetes.
Answer: a condition in which the pancreas fails to produce enough insulin or
the body's cells cannot use it properly, characterized by excessive thirst,
weight loss/gain, frequent urination.
◍ thyroid gland.
Answer: gland found in neck that regulates rate of metabolism; produces
thyroxine
◍ right lobe of thyroid gland.
Answer: Name just the highlighted area.
◍ glucagon.
Answer: hormone secreted by alpha cells of the pancreas; raises blood
glucose levels
◍ thyroid gland.
Answer: Name the structure.
◍ negative feedback.
Answer: a response that opposes the original stimulus
◍ Cushing syndrome.
Answer: excessive production of cortisol by adrenal cortex with symptoms
of abnormal fat deposits and wasting away of muscle
◍ thymus.
Answer: Name the structure.
COMPREHENSIVE STUDY GUIDE 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◍ infundibulum.
Answer: Name the structure.
◍ two messenger model.
Answer: mechanism of hormone action used by protein hormones; attach to
cell membrane receptors which activate enzymes in the cell to produce the
desired effect
◍ follicle stimulating hormone.
Answer: secreted in increasing amounts during puberty, by the anterior
pituitary gland, to stimulate development of reproductive cell follicles
◍ acromegaly.
Answer: Hypersecretion of the GH in adults which causes an overgrowth of
bones in the hands, feet, and face
◍ luteinizing hormone.
Answer: A protein hormone secreted by the anterior pituitary that stimulates
ovulation in females and androgen production in males.
◍ adrenal medulla.
Answer: Name the structure highlighted.
◍ adrenal cortex.
Answer: Name the structure.
◍ left lobe of thyroid gland.
Answer: Name just the highlighted area.
◍ pineal gland.
, Answer: A small mass of tissue near the center of the brain; it secretes the
hormone melatonin.
◍ pancreas.
Answer: Name the structure at the end of the arrow.
◍ osteoporosis.
Answer: a condition in which the body's bones become weak and break
easily; may be caused by hypersecretion of parahormone
◍ diabetes.
Answer: a condition in which the pancreas fails to produce enough insulin or
the body's cells cannot use it properly, characterized by excessive thirst,
weight loss/gain, frequent urination.
◍ thyroid gland.
Answer: gland found in neck that regulates rate of metabolism; produces
thyroxine
◍ right lobe of thyroid gland.
Answer: Name just the highlighted area.
◍ glucagon.
Answer: hormone secreted by alpha cells of the pancreas; raises blood
glucose levels
◍ thyroid gland.
Answer: Name the structure.
◍ negative feedback.
Answer: a response that opposes the original stimulus
◍ Cushing syndrome.
Answer: excessive production of cortisol by adrenal cortex with symptoms
of abnormal fat deposits and wasting away of muscle
◍ thymus.
Answer: Name the structure.
