Lipoproteins - Lymph node, sentinel
- lone star tick
- Loneliness, fear of
- Long
- long above-knee (A-K) amputation
- Long arm of a chromosome
- long axis of body
- long below-knee (B-K) amputation
- long bone
- long ciliary nerve
- long circumferential pontine branches
- long cone
- long crus of incus
- long head
- long head of adductor hallucis muscle
- long head of adductor triceps muscle
- long head of biceps brachii muscle
- long head of biceps femoris muscle
- long head of biceps flexor cruris muscle
- long head of biceps flexor cubiti muscle
- long head of triceps brachii muscle
- long head of triceps extensor cubiti muscle
- long head of triceps femoris muscle
- long leg brace
- long limb of incus
- long muscle of head
- long muscle of neck
- long posterior ciliary artery
- long process of incus
- long process of malleus
- Long QT syndrome
- Long QT syndrome (LQTS)
- long root of ciliary ganglion
- long saphenous vein
- long terminal repeat
- long terminal repeats
- long thoracic nerve palsy
- long thoracic neuropathy
- long-acting insulin
- long-acting thyroid stimulator
- long-chain