Endocrine system
An example of Maintenance of homeostasis in humans is the action of glucagon and insulin in regulating the
Concentration of blood sugar
After a hormone enters the bloodstream, it is transported throughout the body, but the hormone affects only certain cells. only certain cells are affected because the membranes of these cells have what specific structure?
Receptors
The failure of a cell to react in a normal manner to insulin is most likely the result of a problem with
Receptors
Pituitary growth hormone can affect cells in various parts of the human body because the hormone is secreted directly into
The bloodstream
The secretion of hormones from gland F is regulated by hormones secreted from gland
A
Which gland secretes a hormone that stimulates the development of egg cells in ovaries and influences the secretion of other hormones involved in human reproduction?
A
What will most likely result if a diabetic injects an overdose of insulin?
A dangerous drop in blood sugar levels
An increase in the level of insulin in the blood would most directly result in
A decrease in the amount of glucose in the blood
In a certain community a number of humans have an abnormally enlarged structure under the skin of the lower front side of their necks. The cause of this conditions is most likely
A lack of iodine in the diet, which has caused the development of a goiter
Which gland could become enlarged due to lack of iodine in the diet?
B
Which gland produces parathormone, which regulates the metabolism of calcium?
C
Which structure contains specialized cells that secrete the hormones insulin and glucagon?
D
The level of glucose in the blood is regulated by secretions from glands
D and E
Which pair of terms is most closely associated with the human endocrine system?
Ductless glands and Hormones
The hormone that is important to the development of female secondary sex characteristics and is produced by the structures labeled 6 is
Estrogen
An enlargement of the thyroid gland often associated with an iodine deficient diet
Goiter
When a person´s level of physical activity changes, the circulatory system supplies body cells with amounts of nutrients and oxygen that are appropriate to sustain the new level of activity. This statement best illustrates the concept of
Homeostasis
which hormone does not directly regulate human reproductive Cycle?
Insulin
The maintenance of proper blood sugar level involves the storage of excess sugar in the
Liver
A similarity between the nervous system and the endocrine system in humans is that they both
Maintain Homeostasis
Some pituitary hormones cause the ovaries to secrete hormones. there ovarian hormones then influence the production of the pituitary hormone. This type of control mechanism is known as
Negative Feedback
Which structures secrete hormones that influence proper bone structure and development
Pituitary and Parathyroid
One reason for the change in wound healing time in a diabetic is that
Poor circulation reduces the supply of glucose by healthy cells
The hormone TSH stimulates the production of
Thyroxin
