FAQs in Human Anatomy

Q: How many muscles are there in the human body?
A: There are over 600 muscles in body.

Q: How many bones are there in the human body?
A: There are 206 bones in body.

Q: How many bones are there in the human skull?
A: There are 22 bones in skull

Q: What is the longest bone in the human body?
A: The longest bone is Femur.

Q: How many bones are there in human spinal cord?
A: 7 cervical segments, 12 thoracic segments, 5 lumbar segments, 5 sacral segments, and 3(or 4) coccygeal segments

Q: How many bones are there in the carpal and tarsal?
A: There are 8 carpals and 7 tarsals

Q: How long is human digestive system?
A: Around 40ft
    0.5 m from tongue to duodenum
    5.5 to 6.0 m small intestine (2.2- 2.4 m Jejunum + 3.3- 3.6 m Ileum)
    1.5 m from large intestine to anus

Q: How long does it take to have spermatogenesis?
A: Spermatogenesis takes about 2 to 3 months

Q: How long does it take for water to pass down the esophagus?
A: 1 second

Q: How long does it take for food to pass down the esophagus?
A: 5 to 9 seconds

Q: How many liters of saliva are we producing everyday?
A: 1 to 1.5 liters      

Source: Lectured by Mr. Rick Ceriale