Class II

What happens to the brain after a night of heavy drinking?
  1. The brain become dehydrated and shrinks away from the skull
  2. The brain swells, causing a splitting headache
  3. The nerve endings in the base of the brain become inflamed
  4. Brain activity increases and the surfeit of thoughts causes a headache
What are teeth made of?
  1. Bone
  2. Dentine
  3. Keratin
  4. Dentine and enamel
How many types of muscles are there in the human body?
  1. One (skeletal)
  2. Two (skeletal and smooth)
  3. Three (cardiac, skeletal, smooth)
  4. Four (cardiac, skeletal, smooth, stripy)
Melatonin, which has a role in maintaining our circadian rhythm, is inhibited by which of the following?
  1. Sexual activity
  2. Alcohol
  3. Light
  4. Darkness
Humans pass gas that is created by bacteria in the colon as well as swallowing air. What is considered an average number of times to pass gas?
  1. 2-5 times a day
  2. 10-20 per day
  3. 40-50 times per day
  4. 52-65 per day
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