Approxoimately, how many nerve cells are there in the brain?
A. 100 thousand B. 100 million C. 100 billion
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One of the effects of sore throat is
A. The lymph nodes in your neck contract B. The lymph nodes in your neck swell C. Your epiglottis becomes inflamed
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How much does the hair on your head grow every year?
A. 25 cm (10 inches) B. 1 cm (0.4 inches) C. 12 cm (5 inches)
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Which part of the tongue detects bitter taste?
A. The back B. The sides C. The front
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How many muscles are there in the arm?
A. 15 B. 33 C. 72
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Which organ does the hepatic portal vein drain into?
A. The heart B. The brain C. The liver
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Which side of the heart pumps oxygen-poor blood to the lungs?
A. The left side B. The right side C. Both sides
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What is another word for your collarbone?
A. Scapula B. Humerus C. Clavicle
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What makes the sound of a hiccup?
A. The glottis snapping shut B. The stomach tensing up C. The diaphragm contracting
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How many times does blood pass through the heart on a complete circuit of the body?
A. once B. twice C. four times
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What helps protect a new-born child from infections?
A. The placenta B. Amniotic fluid C. Vernix
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What is the largest organ in the lymphatic system?
A. Spleen B. Appendix C. Liver
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How much urine can the bladder hold?
A. 1 litre (2 pints) B. 500 ml (1 pint) C. 2 litres (4 pints)
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What is a lymphocyte?
A. A place where lymph collects B. A type of white blood cell C. A nodule in the large intestine
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How many pints of blood does the average adult have?
A. 5 B. 10 C. 12
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What do the cilia in your nose do?
A. Keep your nose clean B. Sense odors C. Help you breathe
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Where are the olfactory receptors found?
A. At the top of the nasal cavity B. In the ears C. In the stomach
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Where are your feelings of hunger and thirst are controlled?
A. In the hypothalamus B. In the thyroid C. In the pituitary
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When you sleep, how often do you experience REM (Rapid Eye Movement) sleep?
A. Once a night B. Every 5 minutes C. Every 90 minutes
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What is the cecum part of?
A. The brain stem B. The large intestine C. The windpipe
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