16 Questions
Which type of hormones stay in circulation longer by binding to transport proteins?
Steroid hormones
What is the primary method of action for all the hormones secreted by the anterior lobe of the pituitary gland?
Utilizing the cAMP second messenger mechanism
How are steroid hormones primarily broken down in the body?
Absorption and breakdown in liver and kidney
What is the main difference between peptide hormones and steroid hormones in terms of their structure?
Peptide hormones are unique peptides or small proteins, while steroid hormones use the cAMP second messenger mechanism.
Which stimuli lead to changes in circulating hormone levels involving 2 or more hormones?
Hormonal stimuli
What is the primary method through which neural stimulation reaches a neuroglandular junction?
Neurotransmitters
Where are receptor proteins for lipid-soluble hormones like steroid hormones located?
Inside the cell
Which of the following is NOT a group of hormones based on their chemical structure?
Protein hormones
What is the function of prostaglandins which belong to the group of eicosanoids?
Affect enzymatic processes
How do plasma membrane receptors function for non-lipid soluble hormones?
Activate second messengers in the cytoplasm
What is responsible for inactivating cyclic AMP (cAMP) to AMP in the cell?
Phosphodiesterase (PDE)
Which type of hormones consist of chains of amino acids and form the largest class of hormones?
Peptide hormones
Where are intracellular receptors for lipid-soluble hormones like thyroid hormones located?
Inside the cell nucleus
Which of the following ions is NOT listed as a second messenger in hormone action?
$ ext{Sodium ions}$
'Hormones alter operations of the target cell' mainly by changing:
$ ext{mRNA transcription rates}$
In hormone action, what depends on the presence or absence of receptors for a specific hormone?
Target cell sensitivity to that hormone
Test your knowledge on the endocrine system and intercellular communication in this quiz based on Physiology Chapter 10. Questions cover topics such as the coordination between the endocrine and nervous systems, communication through chemical messages, and maintaining homeostasis.
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