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Unformatted text preview: surface of the body or into the
digestive tract. The most prominent of these glands, all of which are very small and extraordinarily active, are
The Pituitary Body (Hypophysis)--a tiny structure which is situated at the base of the brain but is not a part of
The Pineal Body (Epiphysis)--a still smaller structure, located within the brain substance, having, however, no
relationship to the brain. This gland has only lately acquired a significance. Descartes thought it the seat of the
soul because it is situated in the middle of the brain.
The Thyroid gland, a somewhat larger body, situated in the front of the neck, just beneath the larynx. We shall
deal with this in some detail later on.
The Parathyroids, minute organs, four in number, just behind the thyroid.
The Thymus, a gland placed just within the thorax, which reaches its maximum size at birth and then
gradually recedes until at twenty it has almost disappeared.
The Adrenal glands, one on each side of the body, above and adjacent to the kidney. These glands, which are
each made up of two opposing structures, stand in intimate relation to the sympathetic nervous system and
secrete a substance called adrenalin.
The Sex organs, the ovary in the female and the testicle in the male, in addition to producing the female egg
(ovum) and the male seed (sperm), respectively, produce substances of unknown character that have hugely
important roles in the establishment of mind, temperament and sex character.
Without going into the details of the functions of the endocrine glands, one may say that they are "the
managers of the human body." Every individual, from the time he is born until the time he dies, is under the
influence of these many different kinds of elements,--some of them having to do with the development of the
bones and teeth, some with the development of the body and nervous system, some with the development of
the mind, etc. (and character), and later on with reproduction. These glands are not independent of one another
but interact in a marvelous manner so that under or o...
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This note was uploaded on 09/26/2011 for the course PSYCHOLOGY 110 taught by Professor Kannan during the Spring '11 term at Anna University Chennai - Regional Office, Coimbatore.
- Spring '11