Endocrine and Exocrine Glands

This is the correct option. Pituitary gland secretes a number of hormones. For example, growth hormone. Adrenal gland secretes adrenaline hormone and aldosterone hormone.

This is the correct option. Pancreas and ovaries both work as an endocrine gland as well as an exocrine gland.

This is the correct option as pituitary gland is attached to the base of the brain.

This is the correct option. Pituitary and thyroid glands are endocrine glands.

This is the correct option. Sebaceous glands are the small glands in the skin that secrete an oil through the skin pores to lubricate and protect the surface of the skin.

Lymph is the fluid that circulates throughout the lymphatic system. Approximately half of the lymph formed in the body is formed in the liver.

The largest gland of the human body is the liver. It is almost as large as the stomach. Adrenal glands are small pyramids present just above the kidneys while thyroid gland is also a small bow-shaped gland accommodated behind the throat. Salivary glands are too small and are present in the mouth. Thus, (1), (3) and (4) are all small sized glands, and only option (2) is correct.

They both belong to the class Mammalia.

Correct answer. Pineal gland, hypothalamus and pituitary gland are endocrine glands.

Lachrymal glands, also called tear glands, are specialized exocrine glands located above each eye that secrete tears. Tears keep the eyes moist, wash away dust and debris, and contain enzymes (like lysozyme) that help prevent infection. Options B (mucous), C (pus), and D (hormones) are secretions from different types of glands - mucous membranes, inflammatory responses, and endocrine glands respectively.

The liver is the largest internal organ and gland in the human body, weighing approximately 1.4-1.6 kg in adults. It performs over 500 vital functions including detoxification, protein synthesis, and bile production. The thyroid is much smaller, while the pancreas and pituitary gland are significantly smaller in size.

The pituitary gland is called the 'master gland' because it produces hormones that regulate other endocrine glands including thyroid, adrenal glands, and reproductive organs. The hypothalamus controls the pituitary, making it the 'master of the master' in a regulatory sense.

The sublingual gland is the smallest of the three glands. It is situated beneath the mucous membrane of the floor of the mouth at the side of the fraenulum in contact with the sublingual depression on the inner surface of the mandible. It is narrow, flattened, shaped somewhat like an almond and weighs nearly 2 gm.

The parotid gland is a salivary gland in humans. It is one of a pair and the largest of the salivary glands. It is wrapped around the mandibular ramus and secretes saliva into the oral cavity to facilitate mastication and swallowing, and to begin the digestion of starches.