| Term | Definition |
|---|---|
| 211 San Diego | San Diego County's free, 24-hour community information and referral service — dial 2-1-1 or search 211sandiego.org. |
| Bodily injury liability | The coverage that pays for injuries the policyholder causes to others, up to policy limits (post-SB 1107 minimum: $30,000 per person / $60,000 per accident). |
| Cervical spine | The neck portion of the spine — seven vertebrae, C1 through C7, carrying the head and the greatest range of motion in the column. |
| CT scan | An imaging study that combines X-rays with computer processing into cross-sectional images — used where detail beyond plain X-ray is needed. |
| Delayed onset | The pattern by which soft-tissue pain and stiffness peak 24 to 72 hours after an injury rather than immediately. |
| First-party claim | A claim on your own policy: collision coverage, medical payments, or UM/UIM. |
| Grade (sprain or strain) | Severity scale: grade 1 is a mild stretch, grade 2 a partial tear, grade 3 a complete tear — the spread across grades drives the recovery range. |
| Imaging studies | The main studies after a crash: X-ray (the most common and widely available, showing bone well and usually first), CT scan (X-rays with computer processing into cross-sectional images, used where detail beyond plain X-ray is needed), and MRI (magnetic resonance imaging — images soft tissue in high resolution without radiation). |
| Ligament | The connective tissue joining bone to bone; a sprain is a stretch or tear of a ligament. |
| Lordosis | The inward curve of the cervical and lumbar spine — the cervical lordosis is the neck's natural forward bend, loaded hardest in the acceleration-lag-rebound sequence of a rear-end impact. |
| Lumbar spine | The low back — five vertebrae, L1 through L5, braced and loaded in a collision. |
| The merge (I-5/I-805) | The San Diego corridor junction where I-805 traffic joins I-5 — shorthand in this desk for the merge-queue collision pattern. |
| Property damage liability | The coverage that pays for damage the policyholder causes to others' property (post-SB 1107 minimum: $15,000). |
| QTF | The Quebec Task Force on Whiplash-Associated Disorders — the 1995 group whose WAD grades 0–IV remain the standard classification. |
| SB 1107 | The Protect California Drivers Act — raised California's minimum auto liability limits to 30/60/15 for policies issued or renewed on or after January 1, 2025. |
| Soft-tissue injury | Injury to muscle, tendon, or ligament — the most common injury pattern in collisions, distinct from fractures. |
| Sprain | A stretch or tear of a ligament — the tissue connecting bone to bone. |
| SR-1 | California's written traffic accident report to the DMV, due within 10 days for collisions involving injury, death, or qualifying property damage (Vehicle Code §20008). |
| Statute of limitations | The filing deadline for a lawsuit: two years for California personal injury (Code of Civil Procedure §335.1). |
| Strain | An injury to a muscle or tendon — the tissue connecting muscle to bone. |
| Tendon | The cord of connective tissue attaching muscle to bone; a strain is a stretch or tear of a muscle or tendon. |
| Third-party claim | A claim against the at-fault driver's liability policy — paid only after fault and damages are established. |
| Trapezius | The large neck-to-shoulder muscle that commonly seizes and spasms after a collision's whiplash motion. |
| UM/UIM | Uninsured/underinsured motorist coverage on your own policy — required unless waived in writing (Insurance Code §11580.2). |
| WAD | Whiplash-associated disorder — the Quebec Task Force's grades 0 through IV, set by clinical findings. |
FILE ST-09GlossaryEDITED BY SAN DIEGO SOFT TISSUE DESK — EDITORIALLAST REVIEWED October 15, 2026
Glossary
Every term this desk uses, defined once, plainly. Files link here rather than re-defining mid-sentence.