The human Pituitary gland is reddish–Grey, an oval structure about 10mm in diameter in the brain just behind the optic chiasma as an extension of the field of the hypothalamus. The average weight of the gland in females is 0.5–0.6gm and in males is 0.6 to 0.7 gm. The Pituitary gland location below the Hypothalamus of the brain. What are the …
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The study of Endocrine glands and their functions is called ‘Endocrinology’ the term introduced by PENDE. Vertebrates have been attained its systems in evolution. The systems are Respiratory system, Circulatory system, excretory system, Digestive system, Nervous system, Endocrine system, and some other systems. In this, there are two integrated systems functioning in Homeostasis in vertebrates including humans. These are the …
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Blood is connective tissue, flowing through capillaries, veins, and arteries of all vertebrates. The red color is characteristic due to the presence of hemoglobin in the red blood cells. It is a type of connective tissue specialized with a matrix colloidal liquid and a complex constitution. It is a solid phase (formed elements), which includes the erythrocytes (or red blood cells), the leukocytes (white blood cells) and platelets, and a liquid phase, represented by blood plasma. These phases …
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The sickle-cell disease (SCD) is a group of inherited Red Blood Cell (RBC) disorders. Healthy red blood cells are round and move through small blood vessels to carry oxygen to all parts of the body. Sickle cell anemia causes red blood cells to become hard, sticky and have become sickle-shaped or “C”. These affected cells die prematurely, which causes a …
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The Gonads (testes in males, ovaries in females) perform closely related dual functions. Synthesize Sex hormonesProduce Germ Cells The steroid sex hormones (gonads secretions) are responsible for growth, development, maintenance and regulation of reproductive system. Sex hormones are essentially required for the development of germ cells. Hormones of Gonads The sex hormones are categorized into THREE groups: Androgens or male …
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Blood plasma contains 8% solids of which contain 7% of albumins. The different plasma proteins are Albumins, Globulins, and Fibrinogen. Normally total plasma proteins are 6 to 8 gms / 100ml. With Albumin, Globulin ratio as to 1.7:1. The proteins present in the plasma of human blood are a mixture of simple proteins, glycoproteins, lipoproteins, and other conjugated proteins are …
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Hormonal action at the cellular level begins with the association of the hormone and its specific receptor. Hormone can be classified by the nature of the signal (or) second messenger used to mediate hormonal action within the cell. A number of these second messengers have been defined, but for several hormones the intracellular signal has been discovered. Some Endocrine Glands …
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Anatomy of gland: The thyroid gland is the largest endocrine gland in the body. Thyroid Gland consists two lobes, locates either side of and anterior to the trachea just below the larynx. The two lobes are connected by a narrow bridge called “ISTHUMUS”, so the gland looks like ‘H’ shape. The weight of the thyroid gland is 20 to 30 …
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