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Anatomy II Exam 1 Practice for Midterm NDSU Questions and Correct Answers the Latest Update $14.49   Add to cart

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Anatomy II Exam 1 Practice for Midterm NDSU Questions and Correct Answers the Latest Update

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  • Anatomy II

The endocrine system releases neurotransmitters into ducts. secretes chemicals that reach their targets through the bloodstream. communicates via frequency-modulated signals. contains organs called exocrine glands. is isolated from the nervous system. secretes chemicals that reach their targ...

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  • November 8, 2024
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Anatomy II Exam 1 Practice for Midterm
NDSU Questions and Correct Answers the
Latest Update
The endocrine system

releases neurotransmitters into ducts.




secretes chemicals that reach their targets through the bloodstream.

communicates via frequency-modulated signals.

contains organs called exocrine glands.

is isolated from the nervous system.

✓ secretes chemicals that reach their targets through the bloodstream.



Steroid hormones




bind to membrane receptors.

diffuse easily through the plasma membrane.

act by activating cAMP.

are inactivated by phosphodiesterase.

are water soluble.

✓ diffuse easily through the plasma membrane.



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Which type of chemical messenger stimulates the cell that originally secreted it?




Paracrine

Neurotransmitter

Autocrine

Endocrine

✓ Autocrine



In some forms of diabetes, an insensitivity to insulin seems to be present. This insensitivity could

be the result of_________.

up-regulation

over-regulation

down-regulation

a lack of regulation

modulation

✓ down-regulation



The half-life of a hormone allows one to determine




the rate of hormone secretion.

the identity of a hormone.

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the rate at which hormones are eliminated from the body.

the rate of action of a hormone.

the rate of travel through the blood to a target.

✓ the rate at which hormones are eliminated from the body.



Which chemical class of hormone is more likely to need a binding protein for transport in the

blood?




Water-soluble

Amino acid derivative

Protein

Lipid-soluble

✓ Lipid-soluble



Hormone A has entered the cell and binds to a nuclear receptor, while hormone B binds to a

membrane receptor on the outside of the cell. Which statement is TRUE about hormone A?




Hormone A is in the lipid-soluble category.

Hormone A is in the water-soluble category.

Hormone A will stimulate the activation of a G protein.

Hormone A will cause the formation of cAMP.


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✓ Hormone A is in the lipid-soluble category.



Which of the following statements is NOT true?




The hypothalamus is important to both the nervous and endocrine systems.

Both the nervous and endocrine systems may utilize the same chemical molecule.

Some neurons secrete hormones.

Both the nervous and endocrine systems respond quickly and are active for a long time.

✓ Both the nervous and endocrine systems respond quickly and are active for a long time.



All of the following are reasons why some hormones need assistance to travel in the blood

except




they are small enough to be easily digested by blood enzymes.

they are easily filtered from the blood into the kidney tubules.

they have low solubility in blood plasma due to their chemical nature.

they cannot dissolve in the blood because they are water-soluble.

✓ they cannot dissolve in the blood because they are water-soluble.



Hormones are intercellular chemical signals that




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