1. A bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
   - atrioventricular bundle, bundle of His, atrioventricular trunk

Type of: cardiac muscle, heart muscle

• Pterospermum acerifolium
• Pterostylis
• pteroylglutamic acid
• pteroylmonoglutamic acid
• pterygium
• pterygoid muscle
• pterygoid plexus
• pterygoid process
• pteryla
• Ptilocercus
• Ptilocrinus
• Ptilonorhynchidae
• Ptilonorhynchus
• Ptilonorhynchus violaceus
• Ptloris
• Ptloris paradisea
• PTO
• Ptolemaic
• Ptolemaic dynasty
• Ptolemaic system
• Ptolemies
• Ptolemy
• Ptolemy I
• Ptolemy II
• ptomain