10 most difficult human anatomy riddlesHuman anatomy quiz
How many eyelashes are on the upper eyelid?
The number on the bottom eyelid is significantly lower - about 50-150.
Which reptile subgroup is considered extinct?
None of the above are extinct
Synapsids were the largest terrestrial vertebrates in the Permian period, 299 to 251 million years ago, although some of the larger pareiasaurs at the end of Permian could match them in size.
What was included in the original Pepsi-Cola recipe?
coke from coal
Pepsi Cola, first introduced in 1898, was named after pepsin (enzyme) and kola (nuts). In 1931, the company entered bankruptcy and changed hands. The new owners changed the recipe to resemble more Coca-Cola.
For what (mainly) earwigs use pliers?
for defend themselves
for crushing food
Earwigs are characterized by the cerci, or the pair of forceps-like pincers on their abdomen; male earwigs generally have more curved pincers than females. These pincers are used to defend themselves and fold their wings under the short tegmina. The antennae are thread-like with at least 10 segments.
How many joints are in the human foot?
The human foot consists of 26 bones and 33 joints.
People have usually two kidneys. How are these located?
the left kidney is located higher
the right kidney is located higher
some people have the left one higher, others have the right one higher
Because of the asymmetry within the abdominal cavity caused by the liver, the right kidney is typically slightly smaller and located lower than the left. Moreover, the left kidney is located slightly more medial than the right.
Which of the following hormones is secreted by the kidneys?
Erythropoietin is secreted by the kidney in response to cellular hypoxia, and stimulates red blood cell production in the bone marrow. The other three are secreted by the adrenal gland.
If you were to suffer from kyphosis, your back would be...
Kyphosis is the pathological curving of the spine, where parts of the spinal column lose some or all of their lordotic profile. This causes a bowing of the back, seen as a slouching posture. It can be called roundback or Kelso's hunchback.
Which enzyme is responsible for the breakdown of fats in duodenum?
duodenum does't digest the fats
The duodenum is the first segment of the small intestine, which is largely responsible for the breakdown of food. It helps to digest all categories of food: carbohydrates, fats, and proteins. Fats break down with the help of the lipase enzyme, which is secreted from the pancreas.