Hole's Essentials of Human Anatomy & Physiology, 12th Edition (Shier)

Chapter 11: Endocrine System

Pre-Test Questions

Endocrine glands secrete hormones
A)directly into body fluids such as blood
B)that are active only in the endoplasmic reticulum of cells
C)whose concentrations are regulated by positive feedback mechanisms
D)that reach some body surface after secretion
Which statement regarding the endocrine system is false?
A)Signaling by the endocrine system is just as precise as the signaling by the nervous system.
B)The actions of a hormone usually take longer to occur than the actions of a neurotransmitter.
C)Endocrine glands are important in growth, development, and reproduction.
D)Hormones exert their effects only on cells near the site of secretion.
The action of a hormone is directed at
A)its site of secretion
B)growing and dividing cells
C)target cells
D)cell membranes
A major difference between steroid and other types of hormones is
A)steroid hormones are lipid soluble
B)amines tend to form a receptor-hormone complex that is active within the nucleus of the cell
C)receptor sites for steroid hormones are both a binding site and an activity site
D)receptors for steroid hormones are found in the cell membrane
A)can be potent in very small concentrations
B)are capable of affecting target cells far from the site of secretion
C)are stored in large quantities in liver cells
D)are primarily used to control contraction of smooth muscle
A characteristic of the negative feedback system that regulates hormone secretion is that it
A)is activated by the nervous system
B)causes an inhibitory effect on the secretion of a hormone
C)causes of a stimulatory effect on the gland
D)has a tendency for hormone levels to fluctuate widely
Choose the true statement regarding the pituitary gland.
A)The hypophyseal portal veins are associated with the posterior lobe of the pituitary gland.
B)The pituitary in the adult consists of anterior, intermediate, and posterior lobes.
C)Secretion of pituitary hormones is regulated by the hypothalamus.
D)Most of the pituitary hormones are secreted by the posterior lobe.
The hormones secreted by the anterior lobe of the pituitary gland include all of the following except
A)growth hormone
D)adrenocorticotropic hormone (ACTH)
Which of the following pituitary hormones regulates fluid balance?
Which of the following is/are a function of the thyroid gland?
A)maturation and metabolism
B)control storage of lipids
C)decrease the rate of energy release from carbohydrates
D)inhibit growth in children
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