Trinity of Science

Trinity of Science Exploring the power of Biology, Physics & Chemistry, the three pillars of science. Discover facts, experiments & innovations that shape our universe.

What Is Growth Hormone? 🧬📈Growth hormone (GH) is a peptide hormone produced by the anterior pituitary gland that plays a...
08/29/2026

What Is Growth Hormone? 🧬📈

Growth hormone (GH) is a peptide hormone produced by the anterior pituitary gland that plays an important role in growth, metabolism, and tissue repair.
GH stimulates the liver and other tissues to produce IGF-1, which promotes bone and cartilage growth, especially during childhood and adolescence.
It also influences metabolism by promoting protein synthesis and fat breakdown while reducing glucose uptake in some tissues, helping regulate how the body uses energy.

What Are Thyroid Hormones? 🦋🧬Thyroid hormones—mainly T4 (thyroxine) and T3 (triiodothyronine)—are produced by the thyroi...
08/29/2026

What Are Thyroid Hormones? 🦋🧬

Thyroid hormones—mainly T4 (thyroxine) and T3 (triiodothyronine)—are produced by the thyroid gland and help regulate how the body uses energy.
The thyroid releases mostly T4, which is converted in many tissues into the more biologically active T3. These hormones enter cells and influence gene expression, increasing or decreasing the activity of many metabolic processes.
They are essential for metabolism, body temperature, heart function, growth, brain development, and normal nervous-system function, with production controlled by the hypothalamus–pituitary–thyroid axis.

What Are the Adrenal Glands? 🧠⚡The adrenal glands are two small endocrine glands located on top of the kidneys that help...
08/28/2026

What Are the Adrenal Glands? 🧠⚡

The adrenal glands are two small endocrine glands located on top of the kidneys that help regulate stress, metabolism, blood pressure, and electrolyte balance.
Each gland has two distinct regions: the adrenal cortex, which produces cortisol, aldosterone, and adrenal androgens, and the adrenal medulla, which releases adrenaline and noradrenaline during the fight-or-flight response.
Together, these hormones help the body respond to stress, maintain blood pressure and fluid balance, regulate metabolism, and support normal physiological function.

What Is Cortisol — the Stress Hormone? 🧠⚡Cortisol is a steroid hormone produced by the adrenal cortex that helps the bod...
08/28/2026

What Is Cortisol — the Stress Hormone? 🧠⚡

Cortisol is a steroid hormone produced by the adrenal cortex that helps the body respond to stress and maintain energy balance.
When released, it helps increase blood glucose availability, supports blood pressure, influences metabolism, and regulates immune and inflammatory activity.
Cortisol follows a daily circadian rhythm and is controlled by the hypothalamus–pituitary–adrenal (HPA) axis, with negative feedback helping prevent excessive hormone production.

What Is Glucagon? 🩸🧬Glucagon is a hormone produced by α-cells in the pancreatic islets that helps prevent blood glucose ...
08/28/2026

What Is Glucagon? 🩸🧬

Glucagon is a hormone produced by α-cells in the pancreatic islets that helps prevent blood glucose from falling too low.
When blood glucose decreases, glucagon acts mainly on the liver, stimulating glycogen breakdown (glycogenolysis) and new glucose production (gluconeogenesis), releasing glucose into the bloodstream.
Glucagon generally acts opposite to insulin, helping maintain stable blood glucose between meals and during fasting.

What Is GLP-1? 🧬🩸GLP-1 (glucagon-like peptide-1) is an incretin hormone released mainly by specialized L cells in the in...
08/28/2026

What Is GLP-1? 🧬🩸

GLP-1 (glucagon-like peptide-1) is an incretin hormone released mainly by specialized L cells in the intestine after eating.
It helps control blood glucose by increasing insulin release when glucose is elevated and reducing glucagon secretion, while also slowing stomach emptying and promoting satiety.
GLP-1 also acts on the brain’s appetite-regulation pathways, helping reduce food intake and supporting energy-balance control.

08/28/2026

WHAT HAPPENS WHEN A BLISTER FORMS? 🩹🔬

A blister forms when repeated friction, burns, or other skin injury damages the layers of the skin, causing them to separate.
The body responds by allowing fluid to collect between the damaged skin layers, creating a small protective pocket that cushions the injured tissue underneath.
The intact upper layer of skin acts like a natural biological dressing, protecting the wound while new skin cells repair the damaged area and the trapped fluid is gradually reabsorbed.

What Is the Hypothalamus? 🧠🧬The hypothalamus is a small but essential region at the base of the brain that acts as a maj...
08/28/2026

What Is the Hypothalamus? 🧠🧬

The hypothalamus is a small but essential region at the base of the brain that acts as a major control center for homeostasis and hormone regulation.
It monitors and regulates body temperature, hunger, thirst, sleep, stress, blood pressure, and energy balance, helping keep the internal environment stable.
The hypothalamus also controls the pituitary gland through releasing and inhibiting hormones and produces ADH and oxytocin, which are transported to the posterior pituitary for storage and release.

What Is Ghrelin — the Hunger Hormone? 🍽️🧠Ghrelin is a hormone produced mainly by the stomach that signals the brain to i...
08/28/2026

What Is Ghrelin — the Hunger Hormone? 🍽️🧠

Ghrelin is a hormone produced mainly by the stomach that signals the brain to increase hunger and prepare the body for food intake.
Ghrelin levels typically rise before meals and fall after eating, acting on the hypothalamus to stimulate appetite and influence energy balance.
Beyond hunger, ghrelin also affects growth hormone release, gastrointestinal function, and metabolism, making it an important link between the digestive system and the brain.

What Is Leptin — the Satiety Hormone? 🧠🍽️Leptin is a hormone produced mainly by fat cells (adipocytes) that helps the br...
08/28/2026

What Is Leptin — the Satiety Hormone? 🧠🍽️

Leptin is a hormone produced mainly by fat cells (adipocytes) that helps the brain monitor the body’s energy stores.
When energy stores increase, leptin levels generally rise and signal the hypothalamus to reduce hunger and increase energy expenditure.
In obesity, leptin levels are often high, but the brain may become less responsive to leptin signals (leptin resistance), weakening its ability to suppress appetite despite abundant energy stores.

Address

Elizabethtown
17022

Website

Alerts

Be the first to know and let us send you an email when Trinity of Science posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category