Learn all of the different ways to maximize the amount of particles that diffuse over a short distance over time. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.

Learn the difference between blood flow (Volume/time) and perfusion (Volume/time/amount of tissue). Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn how Type B Influenza virus has genetic drift, whereas Type A Influenza virus has genetic drift AND shift. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Find out how many people get hospitalized and die from the flu each year, and learn how we can use the internet to keep tabs on the flu! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Find out just how useful the flu vaccine actually is at preventing the flu! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn about some of the common and uncommon risks and benefits associated with the flu vaccine! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Watch how the fetal heart allows blood to simply bypass the lungs altogether using the Foramen Ovale and the Ductus Arteriosus! Rishi is a pediatric infectious disease physician and works at Khan Academy.

The resource "Anatomy and Physiology Review" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Cardiopulmonary System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Cells - The Building Blocks of Life" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Digestive System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Endocrine System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Integumentary System - Protection" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Muscular System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Nervous System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Reproductive System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Senses" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Skeletal System" is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.

The resource "Structure and Function of the Human Body    " is a module in the "Anatomy and Physiology" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Physiology.