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When a peptide hormone binds to receptors on the surface of cells-
A second messenger appears in the cytoplasm
The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone
What happens after a steroid hormone binds to its receptor to form an active complex?
Gene transcription is initiated
One of the major groups of steroid hormones produced by the adrenal cortex. It enables the body to resist long-term stressors, primarily by increasing blood glucose levels.
multinucleate cells which rupture then release thousands of anucleate "pieces" that quickly seal themseleves off from the surrounding fluids
What is the plateau phase of cardiac muscle action potential due to?
The calcium channels remain open for longer than sodium channels
These will increase cardiac output
Increased venous return, increased sympathetic stimulation, increased heart rate
An ECG can reveal
duration of the ventricular action potential, condition of the conduction, hear rate
The structure that permits blood flow from the R atrium to the L atrium in the fetal circulation is the
Increases heart rate...
Increased sympathetic stimulation of the SA node, increased levels of epinephrine, decreased vagal stimulation
cortex of the adrenal gland that produces three mayor groups of steroid hormones called corticosteroids.
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