16.The fundamental unit of a medical word is the

A. 　root

B. 　suffix

C. 　prefix

D. 　combining vowel

E. 　compound word

A. 　spinal cord and bone marrow

B. 　spinal cord

C. 　brain

D. 　bone marrow

E. 　spinal cord and brain

A. 　spleen

B. 　lung

C. 　brain

D. 　liver

E. 　heart

A. 　pl

B. 　p

C. 　s

D. 　n

E. 　u

A. 　compound word

B. 　vowel

C. 　combining form

D. 　prefix

E. 　acronym

A. 　a prefix and suffix only

B. 　a prefix,a root,and a suffix

C. 　a prefix and root only

D. 　two or more roots

E. 　a root and suffix only

A. 　pharical

B. 　pharyngeal

C. 　pharynile

D. 　pharyngeal

E. 　pharyndeal

A. 　heart

B. 　kidney

C. 　testis

D. 　pituitary

E. 　thymus

A. 　neur

B. 　itis

C. 　neu

D. 　its

E. 　neare

A. 　German

B. 　Latin

C. 　Greek and Latin

D. 　German and Greek