Endocrine System 1.9 Flashcards
Which of the following statements is true?
Glands of the endocrine system deliver hormones directly to their target sites by way of ducts.
The transport of hormones is not dependent on the circulatory system.
The endocrine system secretes chemical messengers from ductless glands.
Exocrine glands produce hormones that cause metabolic changes in cells.
The endocrine system secretes chemical messengers from ductless glands.
The hormones called insulin and glucagon _______
Which of the following completes the sentence above?
A work together to increase blood glucose levels.
are secreted by the pituitary gland to regulate blood glucose levels.
regulate calcium ion concentrations in the blood.
have opposite effects on blood glucose levels but work together towards maintenance of a homeostatic level of glucose in the blood.
have opposite effects on blood glucose levels but work together towards maintenance of a homeostatic level of glucose in the blood.
Which of the tollowing is true about the tollowing hormones?
If insulin, a nonsteroid hormone that attaches to the surface of cells, loses the ability to cause cellular glucose uptake, diabetes
If a benign tumor in the pituitary prevents the secretion of thyroid-stimulating hormone, hyperthyroidism is likely.
If releasing hormones from the hypothalamus fail to stimulate the production of growth hormone, gigantism would result.
If a person was injected with too much insulin, their blood glucose level could become dangerously high.
If insulin, a nonsteroid hormone that attaches to the surface of cells, loses the ability to cause cellular glucose uptake, diabetes
Negative feedback is _______
Which of the following completes the sentence above?
present in the relationship between oxytocin, cervix stretching, and uterine contractions.
present in the relationship between the stimulatory action of growth hormone inhibiting hormone on the release of growth hormone from the anterior pituitary.
the cause of diseases such as diabetes, hyperthyroidism, and gigantism.
involved in the inhibitory action of thyroid hormone on thyroid-stimulating hormone and thyroid-releasing hormone.
involved in the inhibitory action of thyroid hormone on thyroid-stimulating hormone and thyroid-releasing hormone.
Which of the following pairs correctly matches a gland and a hormone it secretes?
Hypothalamus / growth hormone
Anterior pituitary / thyroid-stimulating hormone
Ovary / follicle-stimulating hormone
Parathyroid / glucagon
Anterior pituitary / thyroid-stimulating hormone
Which of the following is true of hormones?
Hormones are chemical messages, secreted by endocrine glands, that travel in the bloodstream to their target sites.
Hormones initiate a response to a stimulus faster than the nervous system
Hormones are produced by exocrine glands.
Hormones have an effect on their target sites that is short lived, compared to the duration of effect caused by neurons.
Hormones are chemical messages, secreted by endocrine glands, that travel in the bloodstream to their target sites
Which of the following statements is true?
Follicle-stimulating hormone, secreted by the thymus, stimulates the development of eggs in ovaries and sperm in testes.
Estrogen is the primary hormone secreted by the pineal gland.
Luteinizing hormone, secreted by the anterior pituitary, stimulates the development of eggs in ovaries and sperm in testes.
Testosterone is secreted by the testes and, in small quantities, by tk adrenal glands of males and females.
Testosterone is secreted by the testes and, in small quantities, by tk adrenal glands of males and females.
Which of the following is true about homeostasis?
Homeostasis is the regulation of the external environment.
Homeostasis is regulated by positive feedback mechanisms.
Homeostasis is the maintenance of internal balance.
Glucagon helps to maintain calcium homeostasis.
Homeostasis is the maintenance of internal balance.
Positive feedback is present in the
Which of the following completes the sentence above?
regulatory action of thyroid-stimulating hormone on thyroid hormone.
relationship between oxytocin, cervix stretching, and uterine contractions.
regulation of blood glucose levels.
relationship between hormone-inhibiting secretions from the hypothalamus and their target sites.
relationship between oxytocin, cervix stretching, and uterine contractions.
Which of the following pairs correctly matches a hormone and its function?
Growth hormone / stimulates tissue growth
Insulin / raises blood glucose levels
Melatonin / produces T-cells
Follicle-stimulating hormone / triggers ovulation and the production of testosterone
Growth hormone / stimulates tissue growth
Which of the following best describes the kind of message sent in the endocrine system?
A. Electrical signals between axons
B. Chemical signals that travel through the bloodstream
C. Physical sensory signals received through the integumentary system
D. Audiovisual signals processed through the brain
B. Chemical signals that travel through the bloodstream
- Which of the following structures secretes releasing hormones?
A. hypothalamus
B. Pituitary
C. Pancreas
D. Liver
Hypothalamus
- Which of the following is a function of the pineal gland?
A. Releasing growth hormone
B. Releasing melatonin
C. Releasing insulin and glucagon
D. Releasing luteinizing hormone
Releasing melatonin
- Which of the following glands releases epinephrine during stress?
A. Hypothalamus
B.Adrenal glands
C. Pancreas
D. Pituitary gland
Adrenal glands
