Did you know

Did you know?

This section of the website will be used to supply tidbits of information related to topics discussed in class that you may be somewhat familiar with or did not not know. It will be used to expand your knowledge of topics in anatomy and physiology that you can "WOW" your parents, friends, co-workers, and extended family members with during the year.

Humans have 46 chromosomes, peas have 14 and crayfish have 200.

We share 98.4% of our DNA with a chimp - and 70% with a slug.

The adult skeleton consists of 206 bones . . .

- 28 skull bones (8 cranial, 14 facial, and 6 ear bones);

- the horseshoe-shaped hyoid bone of the neck;

- 26 vertebrae (7 cervical or neck, 12 thorax, 5 lumbar or loins, the sacrum which is five fused vertebrae, and the coccyx, our vestigial tail, which is four fused vertebrae);

- 24 ribs plus the sternum or breastbone; the shoulder girdle (2 clavicles, the most frequently fractured bone in the body, and 2 scapulae);

- the pelvic girdle (2 fused bones);

- 30 bones in our arms and legs (a total of 120);

- There are also a few partial bones, ranging from 8-18 in number, which are related to joints.

The human hand has 27 bones; your face has 14!
The longest bone in your body? Your thigh bone, the femur -- it's about 1/4 of your height. The smallest is the stirrup bone in the ear which can measure 1/10 of an inch.
Did you know that humans and giraffes have the same number of bones in their necks? Giraffe neck vertebrae are just much, much longer!
You have over 230 moveable and semi-moveable joints in your body.

Each person sheds 40lbs of skin in his or her lifetime.

Every night each human sheds approximately 3 grams of skin particles.