A placebo is

A) any drug being tested in a clinical trial.
B) a hole in a cavity wall through which an organ protrudes.
C) a drug or treatment that is expected to have no pharmacological effect.
D) a nutritive and respiratory organ in fetal development.
E) any drug in a class of drugs commonly used as pain relievers.


C) a drug or treatment that is expected to have no pharmacological effect.

Anatomy & Physiology

You might also like to view...

Red bone marrow functions in the formation of

A) red blood cells only. B) white blood cells only. C) red and white blood cells only. D) red blood cells, white blood cells, and platelets.

Anatomy & Physiology

The hemoglobin found in erythrocytes is able to chemically attach to

A.  only oxygen. B.  only carbon dioxide. C.  only nitrogen D.  both oxygen and carbon dioxide. E.  oxygen, carbon dioxide, and nitrogen.

Anatomy & Physiology

The meninges surround and protect the entire CNS and PNS.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

As a protein is broken down into smaller and smaller fragments, each fragment ultimately requires splitting of the last peptide bond within it. The breaking of the bond between those last two amino acids is catalyzed by the enzyme

A. chymotrypsin. B. trypsin. C. dipeptidase. D. pepsin. E. glucoamylase.

Anatomy & Physiology