| A | B |
| a, an/ apnea | without/ without breathing |
| AB/ abnormal | away from/away from normal |
| ante/antepartum | before/time before birth |
| anti/antiseptic | against/against infection |
| append/appendage | hanging from/ arms & legs hang from body |
| bi/ bicep | two/ muscle with 2 attachments |
| auto/autonomic | self/self starting part of neverous system |
| brady/bradycardia | slow/slow heartbeat |
| dis/disability | negative/ not able to perform |
| dys/dysphagia | painful/painful swallowing |