In this video, we will examine the precise site of fertilization and then follow the physical path of the secondary oocyte (egg) and sperm cell (spermatozoa) to fertilization.

We all have 5 senses right? Well.... No! Here are 10 more hidden senses that you never knew you even had. How crazy is that?!

A MAN who is only 23 INCHES TALL and weighs 15lbs is being worshipped as the reincarnation of a Hindu god. Manpreet Singh is 21-years-old and is the same height and weight as a six month old baby and is believed to be one of the smallest...

In this video, young people learn how to stay clean and comfortable during their periods, including instructions on how to use a sanitary pad, tampon, and menstrual cup.

High Early Morning Glucose | Dawn Phenomenon & Somogyi Effect High early morning glucose levels can become a problem in management of blood sugars for diabetic patients. Glucose levels normally fluctuate throughout the day; however, two...

MEASURING 87cm in height and weighing 20kg, Sari Rezita Ariyanti looks like your average three-year-old, except she isn't a toddler - she's actually 24-years-old. Born on 16 October 1993, Sari is unable to walk and has to rely on her...

Glycolysis | Regulation of PFK-1/Glycolysis Via PFK-2 Activity

Learn the endocrine system with fun labeling worksheets and quizzes.

The video discusses how plants grow and respond to changes in their environment through the use of plant hormones, specifically auxin. The presenter talks about the concept of tropism and how auxin controls the growth of both shoots and...

This video explores the complex biological processes that regulate hunger and appetite in our bodies. It discusses the role of various chemicals and hormones, such as ghrelin, leptin, and neuropeptides, in signaling hunger and fullness.

This is a video on advanced reproductive hormones, focusing specifically on follicle stimulating hormone (FSH) and luteinizing hormone (LH). The video explains what reproductive hormones are and their role in the menstrual cycle. The...

Let's take a look back at the elements platinum, iodine, aluminum, iron, and tungsten.

CAH is a genetic condition that affects the way hormones are made in the adrenal gland. In this simple animated video, we explain how it occurs, the symptoms that result, and how it can be treated. This video will be helpful to students...

We delve into what it means to be transgender, as well as the differences between biological sex, gender identity and gender expression.

In this video, the effects of estrogen on the female body are explored, including its role in puberty, the growth of sex organs, bone density, and skin health. The video also touches on the production of estrogen in males and its minimal...

In this video, we explore the functions of the major gonadotropins, FSH and LH, and how they are released.

An Indian man has become a local celebrity - because he's 50 years old and only 29 inches tall. Basori Lal, from Madhya Pradesh in India, has become a hero in his village and is regularly visited by curious travellers from the...

This video explains the functions and production of two important hormones in the body: adrenaline and thyroxine. The video provides a clear explanation for how adrenaline is released in times of stress or fear, and how it prepares your...

This video explains the menstrual cycle, which is a series of changes that occur in a female's reproductive system every month, from puberty to menopause. The video discusses the different stages of the menstrual cycle, how it is...

Everyone has experienced stress, which is your body’s response to a demand made on it. A surge of hormones is released when people are stressed and that helps them deal with the danger or threat, but it also affects the nervous system...

Serotonin is a chemical our bodies produce that influences how we sleep, our mood, appetite, and more. Low levels of serotonin can trigger depression. Learn more about serotonin and how it affects us.

This video includes a basic introduction to the endocrine system and then a comparison of the signaling between water-soluble and lipid-soluble hormones.

It explains the properties and role of hormones, lists the major endocrine glands and their functions and describes the feedback mechanism of hormones.

This video tutorial provides an overview of the thyroid and parathyroid glands (topography, parts, vascular supply, histology, hormones, etc..). 0:00. Introduction 0:30. Thyroid gland structure and topography 1:37. Parathyroid gland...