Exam 18: Principles of Endocrinology: the Central Endocrine Glands

___________ do(es) not require membrane receptors to invoke cell responses.

The same chemical messenger may be either a hormone or a neurotransmitter, depending on its source and mode of delivery to the target tissue.

Hypophysiotropic hormones are secreted into the systemic circulatory system.

Select the incorrect statement about peptide hormones.

Indicate which hormone is responsible for each action. a.Vasopressin b.Oxytocin c.TSH d.ACTH e.Growth hormone f.Hormone not listed above -Responsible for ovulation

____________________ hormones consist of a chain of specific amino acids of varying length.

Growth hormone does not directly affect bone growth, but instead it stimulates the release of somatomedins from the liver, which in turn promote bone growth.

Growth hormone promotes closure of the epiphyseal plate at adolescence.

__________, which is secreted from an endocrine gland in the brain, has antioxidant properties, enhances the immune system, and may slow the aging process.

Growth hormone, via _____, stimulates _______ growth in a long bone to influence its length.

The hypothalamus is the highest integrative center in the hierarchical chain of command in endocrine control.

Peptide hormones cause changes in solute permeability or alter intracellular protein activity at their targets.

FSH and LH are collectively known as gonadotropins.

Melatonin is produced in the

Indicate the solubility characteristics of each of the classes of hormones by writing the appropriate letter in the blank using the following answer code: a.Lipophilic b.Hydrophilic -Thyroid hormone

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 uterine contractions

Which statement regarding vasopressin is incorrect?

The ________ is the target for ACTH.

Describe the primary factors involved in growth.

Steroid hormones are