Exam 18: Principles of Endocrinology: the Central Endocrine Glands

Growth hormone is controlled by both releasing and inhibiting hormones from the hypothalamus.

Steroid hormones act through the second-messenger system.

Hypophysiotropic hormones

Indicate whether the characteristics below apply to the endocrine system, the nervous system, or both by writing the appropriate letter in the blank using the following answer code: a.Endocrine system b.Nervous system c.Endocrine and nervous systems -Has structural continuity

Indicate which hormone is responsible for each action. a.Vasopressin b.Oxytocin c.TSH d.ACTH e.Growth hormone f.Hormone not listed above -Stimulates cortisol secretion by the adrenal cortex

Light is a crucial factor in regulating circadian rhythms.

Indicate which of the following features apply to the posterior and anterior pituitary using the following answer code: a.Posterior pituitary b.Anterior pituitary c.Posterior and anterior pituitary -Secretes MSH in humans

TSH controls the amount of testosterone secreted by the testes.

Hormones may be steroids, peptides, or amines.

Which of the following is not shared by both lipophilic and hydrophilic hormones?

A "primary" defect in an endocrine system means that the defect is at the hypothalamus.

Match the description with the types of bone cells below by writing the appropriate letters in the blanks. a.Osteocytes b.Osteoblasts c.Osteoclasts -Bone cells that form bone

None of the body's lipophilic hormones utilize second messenger systems at their target cells.

__________ is not secreted from an organ located in the abdominal cavity.

Too little activity of a particular hormone can arise from

Prolactin is the only anterior pituitary hormone that does not exert a tropic action.

Neurohormones are hormones that specifically modify neural activity.

With down regulation, one hormone induces the loss of another hormone's receptors.

Indicate which characteristics in the left column apply to the hormones below by writing the appropriate letters in the blanks. a.Steroids b.Catecholamines c.Peptides d.Thyroid hormone -Synthesized by the endoplasmic reticulum-Golgi complex system

Growth hormone directly stimulates bone growth.