L34 The pituitary gland and the hypothalamus

Question 1 of 17

1

Choose the correct statements about the pituitary gland.

Select one or more of the following:

The secretion of hormones from the pituitary gland is controlled by the hypothalamus.
Each part (anterior/posterior) has a distinctive mechanism for hormone secretion.
Pituitary hormones always stimulate the secretion of hormones by other endocrine glands.
The anterior pituitary gland is connected to the hypothalamus via neurons.

Explanation

Question 2 of 17

1

Choose the correct label.

Drag the answer into the correct orange point.

stored hormone

synapse to adrenohypophysis

hormone target site

Explanation

Question 3 of 17

1

Where are the posterior pituitary hormones made?

Select one of the following:

The cell body of the neuron in the hypothalamus.
The axon endings in the posterior pituitary.
The cells of the adrenohypophysis.

Explanation

Question 4 of 17

1

Choose the incorrect statement about the mechanism of hormone release from the posterior pituitary hormone.

Select one of the following:

The stimulus for release is a neural stimulation from the hypothalamus.
Neural stimulation causes ADH (antidiuretic hormone) or oxytocin to be released into the anterior pituitary gland.
Neural stimulation causes ADH (antidiuretic hormone) or oxytocin to be released into the blood stream.
An increase in action potential firing frequency causes neural stimulation.

Explanation

Question 5 of 17

1

Choose the correct statements about antidiuretic hormone (ADH) and oxytocin.

Select one or more of the following:

They are released from the anterior pituitary gland.
They are peptide hormones.
They travel in the blood bound to a carrier.
They attach to membrane receptors and cause a secondary messenger to be produced.

Explanation

Question 6 of 17

1

❌ stimulates the ❌ to reabsorb water when the body dehydrates.
Oxytocin stimulates contraction of ❌ muscles during ❌, and stimulates ❌ release in ❌.
These are both made in the ❌ and stored in the ❌ until needed.

Drag and drop to complete the text.

Antidiuretic hormone

kidney

bladder

uterine

pelvic

childbirth

milk

breastfeeding

hypothalamus

posterior pituitary gland

anterior pituitary gland

Explanation

Question 7 of 17

1

Oxytocin release during childbirth is a positive feedback loop.

Select one of the following:

True
False

Explanation

Question 8 of 17

1

Choose the incorrect statements about ADH.

Select one or more of the following:

The stimulus for ADH release is a decrease in ECF concentration.
The sensors for changes in ECF concentration are the osmoreceptors in the hypothalamus.
The hypothalamus serves as both the integrator and sensor for the ADH negative feedback system.
The target cells for ADH are specific kidney and specific liver cells.
ADH regulates concentration of body fluids by controlling water excretion.

Explanation

Question 9 of 17

1

Someone with ADH in their bloodstream will produce clear, dilute urine in excess.

Select one of the following:

True
False

Explanation

Question 10 of 17

1

When ADH is present, water channels open in the tubular cells of the kidney so that water molecules can move down their osmotic gradient to a region of high solute(urea) in the ECF.

Select one of the following:

True
False

Explanation

Question 11 of 17

1

The posterior lobe of the hypothalamus is also known as the ❌, as it formed from ❌ and linked to the hypothalamus ❌. The anterior lobe of the hypothalamus is also known as the ❌, as it is formed from ❌ and is linked to the hypothalamus ❌.

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neurohypophysis

neural tissue

neurally

adrenohypophysis

a different tissue with hormonal intent

via the bloodstream

Explanation

Question 12 of 17

1

The neuron that extends toward the anterior pituitary gland from the hypothalamus is shorter than the neuron that extends toward the posterior pituitary gland.

Select one of the following:

True
False

Explanation

Question 13 of 17

1

Choose the correct labels for the anterior pituitary gland.

Drag an answer into the correct orange point.

neuron

hormone

capillaries

nerves

Explanation

Question 14 of 17

1

Choose the incorrect statement about the anterior pituitary gland

Select one of the following:

It communicates with the hypothalamus via hormones in the bloodstream.
The hypothalamus can inhibit the release of hormones from the anterior pituitary gland.
The hypothalamus can stimulate the release of hormones from the anterior pituitary gland.
The hormones released by the anterior pituitary gland are made in the hypothalamus.

Explanation

Question 15 of 17

1

The method of neural input that initiates an action potential from the hypothalamus to the anterior and posterior pituitary glands is the same.

Select one of the following:

True
False

Explanation

Question 16 of 17

1

Select from the dropdown lists to complete the text.

Hormones released by the hypothalamus travel to the ( anterior, posterior ) pituitary gland via ( capillaries, neurons ) where they bind to a specific ( receptor, active site ) on a specific cell and effect release of ( prolactin or growth hormone, oxytocin or antidiuretic hormone ).

	Created by Mer Scott about 7 years ago

L34 The pituitary gland and the hypothalamus

Question 1 of 17

Choose the correct statements about the pituitary gland.

Select one or more of the following:

Explanation

Question 2 of 17

Choose the correct label.

Drag the answer into the correct orange point.

Explanation

Question 3 of 17

Where are the posterior pituitary hormones made?

Select one of the following:

Explanation

Question 4 of 17

Choose the incorrect statement about the mechanism of hormone release from the posterior pituitary hormone.

Select one of the following:

Explanation

Question 5 of 17

Choose the correct statements about antidiuretic hormone (ADH) and oxytocin.

Select one or more of the following:

Explanation

Question 6 of 17

❌ stimulates the ❌ to reabsorb water when the body dehydrates. Oxytocin stimulates contraction of ❌ muscles during ❌, and stimulates ❌ release in ❌. These are both made in the ❌ and stored in the ❌ until needed.

Drag and drop to complete the text.

Explanation

Question 7 of 17

Oxytocin release during childbirth is a positive feedback loop.

Select one of the following:

Explanation

Question 8 of 17

Choose the incorrect statements about ADH.

Select one or more of the following:

Explanation

Question 9 of 17

Someone with ADH in their bloodstream will produce clear, dilute urine in excess.

Select one of the following:

Explanation

Question 10 of 17

When ADH is present, water channels open in the tubular cells of the kidney so that water molecules can move down their osmotic gradient to a region of high solute(urea) in the ECF.

Select one of the following:

Explanation

Question 11 of 17

The posterior lobe of the hypothalamus is also known as the ❌, as it formed from ❌ and linked to the hypothalamus ❌. The anterior lobe of the hypothalamus is also known as the ❌, as it is formed from ❌ and is linked to the hypothalamus ❌.

Drag and drop to complete the text.

Explanation

Question 12 of 17

The neuron that extends toward the anterior pituitary gland from the hypothalamus is shorter than the neuron that extends toward the posterior pituitary gland.

Select one of the following:

Explanation

Question 13 of 17

Choose the correct labels for the anterior pituitary gland.

Drag an answer into the correct orange point.

Explanation

Question 14 of 17

Choose the incorrect statement about the anterior pituitary gland

Select one of the following:

Explanation

Question 15 of 17

The method of neural input that initiates an action potential from the hypothalamus to the anterior and posterior pituitary glands is the same.

Select one of the following:

Explanation

Question 16 of 17

Select from the dropdown lists to complete the text.

Explanation

Question 17 of 17

Hormones released from the hypothalamus can only be inhibitory.

Select one of the following:

Explanation

❌ stimulates the ❌ to reabsorb water when the body dehydrates.
Oxytocin stimulates contraction of ❌ muscles during ❌, and stimulates ❌ release in ❌.
These are both made in the ❌ and stored in the ❌ until needed.