Question

10. Hypothalamus, thyroid, parathyroid and pineal are all :
male sex glands
(ii) female sex glands
(ii) digestive glands
(iv) ductless glands​

Answer 1

Answer:

Types of Glands

Exocrine Glands are those which release their cellular secretions through a duct which empties to the outside or into the lumen (empty internal space) of an organ. These include certain sweat glands, salivary and pancreatic glands, and mammary glands. They are not considered a part of the endocrine system.

The pineal gland and pituitary gland are located in the brain. The thyroid gland is located in the neck.The thymus is located in the chest. The adrenal gland and the pancreas are located near the kidneys in the abdomen. The ovaries and testes are located in the pelvic cavity.

Figure 1. Major endocrine glands. (Male left, female on the right.) 1. Pineal gland 2. Pituitary gland 3. Thyroid gland 4. Thymus 5. Adrenal gland 6. Pancreas 7. Ovary 8. Testis

Endocrine Glands are those glands which have no duct and release their secretions directly into the intercellular fluid or into the blood. The collection of endocrine glands makes up the endocrine system.

The main endocrine glands are the pituitary (anterior and posterior lobes), thyroid, parathyroid, adrenal (cortex and medulla), pancreas and gonads.

The pituitary gland is attached to the hypothalamus of the lower forebrain.

The thyroid gland consists of two lateral masses, connected by a cross bridge, that are attached to the trachea. They are slightly inferior to the larynx.

The parathyroid glands are four masses of tissue, two embedded posterior in each lateral mass of the thyroid gland.

One adrenal gland is located on top of each kidney. The cortex is the outer layer of the adrenal gland. The medulla is the inner core.

The pancreas is along the lower curvature of the stomach, close to where it meets the first region of the small intestine, the duodenum.

The gonads (ovaries and testes) are found in the pelvic cavity.