Question

Ductless glands are also known as
(A)Salivary glands
(B)Endocrine glands
(C)Exocrine glands
(D)Both A and B

Answer 1

Hint:These glands include the hypothalamus, ovaries, testes and adrenal glands. They secrete hormones.

Complete answer
Glands in the body are organs that produce specific products in the body. There are two types of glands- endocrine gland and exocrine gland. Endocrine glands do not have ducts and secrete their products onto a surface. Exocrine glands are the ones that require ducts.
The salivary gland is a type of exocrine gland. They are present just outside the buccal cavity and secrete salivary juice into the buccal cavity.
Endocrine glands have no ducts so these glands are often called ductless glands. Their secretions (hormones) are automatically released into the bloodstream. This secretion is either transmitted directly through the veins, or indirectly by the lymphatic system. As a result, the hormones can function over long periods, and reach every organ in the body to regulate activity.
So, the correct answer is Endocrine glands.

Additional Information:
There is also a particular 'target' organ, on which the hormone works. This long-range activity is most sometimes referred to as neuroendocrine since it is somewhat similar to the coordination behaviour of neurons. Some short-range endocrine behaviour often exists in the digestive system-and this is known as paracrine activity. For example, enteroendocrine gut cells respond to action by secreting locally acting monoamine peptides.
These glands include the thyroid, parathyroid, thymus, pituitary gland, and pineal gland. This section also contains spleen, and also the lymph and hemolymph nodes identified with the lymphatic system. Some glands such as the liver, pancreas and genital glands give off internal secretions, as do the mucous membranes of the stomach and intestines.

Note:Endocrine gland disorders are widespread, including disorders such as diabetes mellitus, thyroid disease, and obesity, cushing's disease, addison's disease, and grave's disease.