Learning the finger pricking method of blood collection is a primary requirement of physiology students. First choice is given to the ring finger.

This post is about Endocrinology of Hormones, its chemistry, how they are regulated and the Mechanism of Hormonal Action.

3 hormones -Tetraiodothyronine, Tri-iodothyronine & calcitonin.T4 is known as thyroxine & it forms about 90% of total secretion, where as T3 is only 9%-10%.

The endocrine part of the pancreas has many rounded collections of cells called as pancreatic islets (the islets of Langerhans).Islets of Langerhans consist of four types of cells.

Adrenal cortex hormones are steroids in nature. They are classified into 3 groups:1.Mineralocorticoids, 2.Glucocorticoids, 3.Sex hormones based on functions.

In a healthy person, Blood Glucose level is controlled in limited range. • In early morning after overnight fasting*- 70-110 mg/dL of blood. • First & second hour after meals (postprandial*)- 100 to 140 mg/dL.

Menstrual cycle is the monthly cyclical changes in ovaries & uterine lining of female, 4 phases are-Menstrual, Follicular, Ovulatory & Luteal.

The neuron is defined as the structural and functional unit of the nervous system. It is having nucleus and all the organelles in cytoplasm.

Hypothalamus regulates many vital functions of body like Endocrine, visceral, metabolic activities, hunger, thirst, sleep, wakefulness, emotions etc.

Cell cycle and mitotic cell division is a continuous process that can be divided into 3 phases. 1. Interphase, 2. Mitosis and 3. Cytokinesis.