Endocrine and Exocrine Glands

•  The liver is digestive glands situated outside the digestive tract.
• The liver is the largest gland of the human body.
•  It weighs about 1.2 to 1.5 kg in an adult human, so option B is correct

The liver is the body's largest gland. An adult human liver weighs between 3.2 and 3.7 pounds. The right lobe of the liver is the largest and is six times larger than the left lobe.

The liver is the largest glandular organ in the body and performs multiple critical functions to keep the body pure of toxins and harmful substances. An average adult liver weighs about three pounds. Located in the upper-right portion of the abdominal cavity under the diaphragm and to the right of the stomach, the liver consists of four lobes. It receives about 1.5 quarts of blood every minute via the hepatic artery and portal vein. 

The liver is the largest internal organ and the largest gland in the human body.

Liver is the largest gland in the body. It is a digestive gland present at the left half of the digestive system besides stomach. It synthesises bile, which emulsify (breaking into small droplets) fats and increase the surface area for the action of lipase enzyme.

Human alimentary canal or gastrointestinal tract associates wit salivary glands, liver, pancreas, small intestine etc. The adrenal glands are endocrine glands that produce a wide variety of hormones. They are found above the kidneys and consist of a number of different layers that directly influence the structure and function of the glands. It is not associated with alimentary canal. Thus, option B is correct. 

The digestive glands associated with the alimentary canal include the salivary glands, the liver and the pancreas. Liver is the largest gland of the body weighing about 1.2 to 1.5 kg in an adult human. It is situated in the abdominal cavity, just below the diaphragm and has two lobes. The hepatic lobules are the structural and functional units of liver containing hepatic cells arranged in the form of cords. Each lobule is covered by a thin connective tissue sheath called the Glissons capsule. The bile secreted by the hepatic cells passes through the hepatic ducts and is stored and concentrated in a thin muscular sac, called the gall bladder. The duct of gall bladder (cystic duct) along with the hepatic duct from the liver forms the common bile duct.

Gastrin is a peptide hormone that stimulates secretion of gastric acid by the parietal cells of the stomach.

The pituitary gland is often called the master gland because it secretes hormones that control the activity of several other endocrine glands. The thyroid, adrenal, and pancreas glands have more specific regulatory roles.

The pineal gland is responsible for regulating our biological clock (circadian rhythm) by secreting the hormone melatonin in response to light-dark cycles.

Cowper's glands (bulbourethral glands) are accessory glands of the male reproductive system that secrete an alkaline fluid to lubricate the urethra and neutralize acidic urine residue.

Sebaceous glands are microscopic exocrine glands located in the skin. They secrete an oily substance called sebum, which helps lubricate and waterproof the skin and hair.

Vasopressin, also known as antidiuretic hormone (ADH), is synthesized in the hypothalamus and stored and released by the posterior pituitary gland. It plays a crucial role in regulating water balance in the body.

An adrenal (or suprarenal) gland sits on top of each kidney. Although anatomically situated on the kidneys, these glands are functionally unrelated to excretion and belong to the endocrine system.

The suprarenal (adrenal) glands produce hormones like cortisol and adrenaline to regulate stress, produce dozens of different steroid hormones, and are roughly the size of a human thumb. Therefore, all statements are true.