6b

These flashcards encompass essential vocabulary and concepts related to the endocrine system, focusing on hormone actions, interactions, and types of secretions.

Tropic Hormones

Hormones that regulate the release of other hormones through feedback loops.

Additive Interaction

When the net effect equals the sum of the individual effects of hormones acting on the same target cell.

Synergistic Interaction

When the effects of two hormones favor each other and the net effect exceeds the sum of the individual effects.

Permissive Interaction

When one hormone is required for another hormone to exert its effects.

Hyposecretion

A condition where there is an inadequate secretion of hormones, e.g., Diabetes mellitus type 1.

Hypersecretion

A condition where there is an excessive secretion of hormones, e.g., Gigantism and acromegaly.

Neural Control of Hormones

Direct neural regulation of an endocrine gland, controlled by structures like the hypothalamus and posterior pituitary.

Humeral Control of Hormones

Bloodborne regulation of endocrine glands influenced by substances like ions and metabolites.

Hydrophilic Hormones

Hormones such as peptides and catecholamines that are dissolved in plasma and have a short half-life.

Hydrophobic Hormones

Hormones such as steroids and thyroid hormones that are bound to carrier proteins and have a longer half-life.

Primary Secretion Disorder

An abnormality in the endocrine organ that secretes the hormone.

Secondary Secretion Disorder

An abnormality in tropic hormones, affecting the hormone levels indirectly.

Antagonism

A type of hormone interaction where the effects of hormones oppose each other.