Purkinje Fibers are specialized heart cells that rapidly carry electrical signals through the ventricles. They help coordinate the timing of each heartbeat so the lower chambers squeeze efficiently. They are part of the heart’s electrical conduction system and are often discussed in ECG and arrhythmia care.

The Left Bundle Branch is a key part of the heart’s electrical wiring system. It carries electrical signals from the main conduction pathway to the left side of the heart. It helps the left ventricle contract in a coordinated, efficient way. It is commonly discussed when interpreting electrocardiograms (ECGs) and evaluating conduction problems.

Neural foramen is a small opening on each side of the spine where a spinal nerve exits the spinal canal. It is formed by two neighboring vertebrae and nearby joints and ligaments. Clinicians use the term when describing nerve-related symptoms, imaging findings, and certain spine procedures. This overview is informational and does not replace an in-person medical evaluation.

The Right Bundle Branch is part of the heart’s electrical wiring system. It carries electrical signals from the upper conduction system into the right ventricle. Clinicians most often refer to it when interpreting an electrocardiogram (ECG/EKG) or discussing conduction blocks. It also matters in electrophysiology and some cardiac procedures where the septum (the wall between ventricles) is involved.

Lateral recess is a small, defined space inside the spinal canal where a spinal nerve root travels before it exits the spine. It is most commonly discussed in the context of spinal stenosis (narrowing) and nerve irritation. Clinicians use the term when describing imaging findings and planning treatment for leg or arm symptoms.

His Bundle is a short tract of specialized heart muscle that carries electrical signals from the upper chambers to the lower chambers. It sits at the junction between the atria (top chambers) and ventricles (bottom chambers). It is a key part of the heart’s conduction system, which coordinates each heartbeat. Clinicians most often discuss it during evaluation and treatment of heart rhythm and pacing problems.

Central canal most commonly refers to the central space within the spine that houses the spinal cord and nearby nerves. It is also a term used for a tiny channel inside the spinal cord, but in routine spine care it usually means the spinal canal. Clinicians discuss the Central canal when describing spinal stenosis, disc problems, trauma, tumors, or infection. It is frequently referenced in MRI and CT reports of the neck (cervical), mid-back (thoracic), and low back (lumbar).

The Bundle of His is a short segment of the heart’s electrical wiring system. It carries the electrical signal from the atrioventricular (AV) node to the ventricles. It is commonly discussed when interpreting ECGs and diagnosing conduction problems. It can also be a clinical target in specialized pacemaker procedures.

The Spinal canal is the hollow space inside the spine that protects the spinal cord and nerve roots. It runs from the base of the skull through the neck, mid-back, and low back. Clinicians use the term when describing MRI or CT findings such as “stenosis” (narrowing). It is also a key reference point in spine surgery planning and neurological exams.

The AV Node is a small cluster of specialized heart cells that helps control how electrical signals travel from the upper to the lower chambers. It sits at the center of the heart’s electrical “wiring,” between the atria and the ventricles. Its job is to slow and coordinate signals so the heart pumps in an organized sequence. Clinicians commonly reference the AV Node when interpreting ECGs, evaluating palpitations, or treating certain arrhythmias.