Search results for: 'Role of the respiratory system'

Watch Later 1:27

By: HWC, Views: 9949

A hydrogen bond is the electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom, such as oxygen or nitrogen. This is not a sharing of electrons, as in a covalent bond. Instead, this is an attraction between the positive and negative poles of charged atoms. ...

Watch Later 0:43

Fetal Development of the Cardiovascular System

By: Administrator, Views: 12422

How the heart develops in the uterus.

Watch Later 1:05

Male Pelvis Animation

By: Administrator, Views: 364

The male pelvis is shaped like a funnel, forming a narrower outlet than the female. The bones are generally thick and heavy and more suited for lifting and running.

Watch Later 1:21

Stomach peristalsis & Enterogastric reflex

By: HWC, Views: 9073

• Food enters, distending the stomach. • Stretch receptors activate enteric reflexes that promote peristaltic movements. • These movements, called mixing waves, begin to mix the food with stomach secretions. • Mixing waves force the digesting food (chyme) toward and through the pylo...

Watch Later 0:46

Anaphylaxis Animation

By: Administrator, Views: 12406

Anaphylaxis is a serious, life-threatening allergic reaction. The most common anaphylactic reactions are to foods, insect stings, medications and latex. If you are allergic to a substance, your immune system overreacts to this allergen by releasing chemicals that cause allergy symptoms.

Watch Later 5:36

How does asthma work?And How do you treat asthma?

By: HWC, Views: 8609

These are the parts of the respiratory system. Sinuses and Nasal Passages Mouth Windpipe (Trachea) Lungs Airways (Bronchial Tubes) Airsacs (Alveoli) When we breathe, air moves easily in and out of the lungs. The small airways are also called bronchial tubes. The side of the tube is...

Watch Later 2:18

Introduction to Eating Disorders

By: Administrator, Views: 12541

An eating disorder is a mental disorder defined by abnormal eating habits that negatively affect a person's physical or mental health. They include binge eating disorder where people eat a large amount in a short period of time, anorexia nervosa where people eat very little and thus have a low bo...

Watch Later 1:03

Female Pelvis Animation

By: Administrator, Views: 1458

The female pelvis is shaped like a basin; can be oval to round, and is wider than the male pelvis. Designed to accommodate the average fetus during pregnancy and to facilitate its downward passage through the birth canal during childbirth.

Watch Later 0:26

Hemodynamics Animation

By: Administrator, Views: 13288

Hemodynamics is the dynamics of blood flow. The circulatory system is controlled by homeostatic mechanisms, such as hydraulic circuits are controlled by control systems. Hemodynamic response continuously monitors and adjusts to conditions in the body and its environment.

Search Results