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Development and Clinical Symptoms of the Placenta

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Development and Clinical Symptoms of the Placenta

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Questions and Answers

What is the main cause of abnormal placental development and reduced placental perfusion?

Increased placental production of positive factors

Maternal vasoconstriction

High blood pressure in the mother

Hypoxia ischemia reperfusion injury (correct)

What is the role of endothelial cells in response to stimuli in the blood?

Influence vasculature to release vasodilators (correct)

Indirectly affect blood clotting

Create and release vasoconstrictors

Promote smooth muscle relaxation only

What do NO and PGI2 do in maternal vasculature during a healthy pregnancy?

Promote smooth muscle relaxation (correct)

Increase peripheral resistance

Cause vasoconstriction

Reduce arterial pressure

In preeclampsia, what effect do signalling molecules have on vasoconstrictors?

Antagonize and reduce bioavailability Signup and view all the answers

What is the main function of angiocentric factors in relation to endothelial health?

Maintain endothelial health and promote relaxation Signup and view all the answers

What contributes to increased oxidative stress in preeclampsia?

Presence of hypoxia/ischemia reperfusion injury Signup and view all the answers

What technique is NOT used by researchers in studying the placenta and related conditions?

Clinical trials with pregnant individuals Signup and view all the answers

What initiates labor based on research findings?

Progesterone withdrawal Signup and view all the answers

What role do Progesterone Receptors play in labor initiation?

Expression altered in labor Signup and view all the answers