A True Osteochondroma Grows Laterally from the Epiphysis and

question 72

Multiple Choice

A true osteochondroma grows laterally from the epiphysis and

• A) has an ectopic cartilaginous growth
• B) must exhibit a cortex and medullary portion
• C) often arises from the outer table of the skull
• D) appears as an eccentric lucent lesion

---

Definitions:

Clock Protein

A component of the circadian clocks of organisms, involved in maintaining the biological rhythm according to a 24-hour cycle.

Photoperiodic Response

The physiological reaction of organisms to the length of day or night, affecting processes such as flowering in plants and breeding in animals.

Photoperiodism

The physiological reaction of organisms to the length of day or night, often affecting flowering and reproduction.

Long-day Plant

Plants that flower only after being exposed to light periods longer than a certain critical length.