Explanation

The small intestine is the longest part of the digestive system.

It extends from the stomach (pylorus) to the large intestine (cecum).

It consists of three parts: duodenum, jejunum and ileum.

Explanation

Bile is produced by the liver and stored in the gallbladder.

It is important for the digestion and absorption of fats in the small intestine.

Explanation

Insulin is produced by the pancreas, which is an organ located behind the stomach.

The pancreas contains clusters of cells called the Islets of Langerhans, specifically the beta cells within these islets, which are responsible for producing insulin.

Insulin plays a crucial role in regulating blood sugar levels by facilitating the uptake of glucose into cells for energy production or storage.

When blood sugar levels rise after a meal, the pancreas releases insulin to help lower blood sugar levels by promoting the uptake of glucose into cells.

Explanation

Calcium is the most abundant mineral in the human body,

calcium makes up 1.5 to 2% of the total body weight.

Approximately 1,200 g of calcium is present in the body of an adult human

more than 99% of that amount is found in bones.

***

ND11-12-2022

Explanation

Glucose, a form of sugar, is the primary source of energy for every cell in the body.

Because the brain is so rich in nerve cells, or neurons, it is the most energy-demanding organ, using one-half of all the sugar energy in the body.

Explanation

The blood vessels that carry oxygenated blood away from the heart to the body are called arteries

The largest artery is the aorta, which branches out into smaller arteries that distribute oxygenated blood to different parts of the body. 

Explanation

The largest blood vessel in the body is the: Aort

****

The blood vessels that supply blood to heart muscles are: Coronary arteries

Blood vessels that carry blood away from the heart toward body tissues are called:  Arteries

The smallest blood vessels are called capillaries.

Explanation

• The spine has 33 stacked vertebrae (small bones) that form the spinal canal. 

• The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx.

• Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
• ****
  

Additional Information "Important For exam point of view"

• The femur is the longest bone in the human body and the shortest bone is the stapes found in the middle ear. 
• A newborn child has 300 bones.
• ***
• The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones.
• The human hand has 27 bones
  

****

Explanation

Ophthalmology is a branch of medical science dealing with the structure, functions, and diseases of the eye.

Ophthalmology means امراض چشم

Explanation

Vestigial organs are organs, tissues or cells in a body

Which are no more functional the way they were in their ancestral form of the trait.