Hormones & Signal Transduction 5 Sections28 LessonsLifetime

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Lecture 01
2 Items
- 1.1
  Introduction to Hormones
- 1.2
  Signal Transduction – Hormones
Signaling and Signal Transduction
7 Items
Hypothalamic & Pituitary Hormones
3 Items
In this section we will discuss the hypothalamic endocrine control on varoius hormones secretin. After that the hormones of the posterior pituitary gland, the antidiuretic hormone and oxytocin, will be discussed individually.
Hormones of the Anterior Pituitary Gland
12 Items
Here we will discuss the Hormones of Anterior Pituitary gland, their secretion, functions and control in various organs
Steroid Hormones
4 Items
This section will be on the steroid hormones, their synthesis, secretion, transport, actions on different organs, mechanism of action of steroid hormones, abnormalities of steroid hormones and their management.

Acromegaly

Acromegaly is the abnormality that is due to increased secretion of the Growth hormone after the puberty.
The usual cause is a macroadenoma.
In acromegaly the bones can become thicker and the soft tissues continue to grow.
Growth is specially marked in bones of the hands & feet and, in the membranous bones.
The membranous bones include cranium, nose, bosses on the forehead, supraorbital ridges, lower jawbone, and portions of the vertebrae.
The jaw grows and the teeth are widely spaced.
The lower jaw protrudes forward, sometimes as much as half an inch.
The forehead slants forward due to the excess development of the supraorbital ridges.
The nose increases to as much as twice the normal size.
The feet require size 14 or larger shoes and,
The fingers become extremely thickened, so that the hands are almost twice normal size.

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