Reproductive Hormones

Hormones are _________ __________ that enter the bloodstream and travel to target tissues.

chemical messengers

Protein hormones are ________ and act via ________ ________ _________.

fast; plasma membrane receptors

Slow steroid hormones act via __________ _____________.

nuclear receptors

Fast steroid hormones act via ___________ ___________ ___________.

plasma membrane receptors

This hormone reflex is fast and does not use hormones:

Simple neural reflex

This hormone reflex is used the most in repro and utilizes hormones:

neuroendocrine reflex

What are the 3 parts to the hypothalamus?

surge center, tonic center, PVN

Which part of the brain secretes oxytocin?

PVN

What is the name of the specialized capillary system that allows minute quantities of GnRH to enter the bloodstream without dilution?

Hypothalamo-hypophyseal portal system

Which part of the brain is sensitive to positive feedback?

surge center

Which part of the brain is sensitive to negative feedback?

tonic center

What are the 3 classifications of hormones?

source, mode of action, biochemical classification

What is the name of substances secreted to the outside of the body that cause a specific behavioral or physiological response?

pheromones

What are the 4 types of strength of hormone action?

pattern and duration of secretion, half-life, receptor density, receptor-hormone affinity

Episodic, basal, and sustained secretion are examples of what?

pattern and duration of secretion

What is the name of the rate at which hormone is cleared from the circulation?

half-life

The more receptors, the higher potential for response is a description of what?

receptor density

The greater the affinity of the hormone for the receptor, the greater the response is a description of what?

receptor affinity

What can hormones be detected in?

blood, saliva, milk, urine, tears, feces

What is the test that requires isotope detection equipment?

RIA

Pregnancy and Covid tests are examples of what type of assay?

ELISA