Which of the following is/are vasoconstrictors?

A) serotonin
B) platelet-activating factor
C) thromboxane A2
D) serotonin and thromboxane A2
E) adenosine diphosphate


D) serotonin and thromboxane A2

Anatomy & Physiology

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The placental membrane is composed of

A. the embryonic disc. B. the amnion and chorion. C. a single layer of epithelial cells. D. a double layer of epithelial cells.

Anatomy & Physiology

The most common type of feeding is free choice

Indicate whether the statement is true or false

Anatomy & Physiology

What is systemic arterial oxygen tension (PO2) in a healthy young person breathing room air at sea level?

A. 40 mm Hg B. 46 mm Hg C. 100 mm Hg D. 150 mm Hg E. 760 mm Hg

Anatomy & Physiology

The striations in striated muscle correspond with actual molecular structures. Which of the following is the I band?

A) a band where only actin myofilaments are found B) a band where only myosin myofilaments are found C) an attachment point for actin myofilaments D) an attachment point for myosin myofilaments

Anatomy & Physiology