Explanation

• The thickness of skin is around 2 millimeters (0.08 inches) thick.
• The skin has two main layers (epidermis - outer layer) and the (dermis - inner layer).
• The epidermis is about 0.05-1.5 millimeters thick.
• The dermis is about 1-4 millimeters thick.

Explanation

• The adult human brain weighs about 3 pounds (1,300-1,400 g).
• The adult human brain is about 2% of the total body weight.
• The average human brain is 140 mm wide.
• The average human brain is 167 mm long.

Explanation

• Neurogenic Parasitic cysts are located in the anterior mediastinum:
• ***
• Anterior refers to Back
  

Explanation

• The spinal cord is a vital part of the central nervous system.
• It responsible for transmitting messages between the brain and the rest of the body.

Explanation

• The skin is the body's first line of defense against external pathogens, such as harmful germs and diseases.
• It acts as a physical barrier, preventing them from entering the body and causing infection or illness.

Explanation

Teeth are responsible for biting, chewing, crushing, and grinding food into smaller pieces, making it easier to swallow and digest.

Explanation

• Skull forms a protective covering for the brain.
• The main and overall function of the skull is to protect the brain and sensory organs and support facial structures.
  

Explanation

• The spleen is an organ that filters the blood and stores red blood cells.
• But it is not part of the digestive tract.

Explanation

• The nose contains the odor receptors that detect smells.
• But the olfactory bulb is the part of the brain.
• It is receives and processes the information from those receptors.

Explanation

The human hand has 27 bones:

the carpals or wrist accounts for 8

the metacarpals or palm contain five

the remaining fourteen are digital bones; fingers and thumb.

while 

The number of bones in a human skull is 22

300 bones are there in a newly born infant.