Category Archives: Physiology

Congestive Heart Failure

Posted on July 2, 2011 by mdmedicine

Congestive heart failure (CHF) is a condition in which the heart’s function as a pump is inadequate to deliver oxygen rich blood to the body. Congestive heart failure can be caused by: diseases that weaken the heart muscle, diseases that … Continue reading →

Posted in Physiology | Tagged , , , , , | 1 Comment

Heart Conduction System

Posted on April 24, 2011 by mdmedicine

Heart’s electrical system controls all the events that occur when our heart pumps blood. The cardiac conduction system is also called the electrical system. The sinoatrial node (SAN), located within the wall of the right atrium (RA), normally generates electrical … Continue reading →

Posted in Physiology | Tagged , , , , , , , , | 13 Comments

Types of Sleep

Posted on April 24, 2011 by mdmedicine

Sleep was long considered just a uniform block of time when you are not awake. Thanks to sleep studies done over the past several decades, it is now known that sleep has distinct stages that cycle throughout the night in … Continue reading →

Posted in Physiology | Tagged , , , , | Leave a comment

What is Normal Heartbeat?

Posted on April 18, 2011 by mdmedicine

The normal resting adult heart beats regularly at an average rate of 60-100 times per minute. How fast the heart beats (heart rate) is governed by the speed of electrical signals originating from the pacemaker of the heart, the SA … Continue reading →

Posted in Physiology | Tagged , , , , | 2 Comments

What is Hyperbaric Oxygen Therapy (HBOT)?

Posted on April 10, 2011 by mdmedicine

Definition Hyperbaric oxygen therapy (HBOT) in a state-of-the-art monoplace chamber is a medical treatment during which the entire body is placed in a transparent, airtight chamber at increased atmospheric pressure. Physiology “Hyper” means increased and “baric” relates to pressure. Hyperbaric … Continue reading →

Posted in Physiology | Tagged , , , , , | 1 Comment

Oxygen Toxicity (Poisoning)

Posted on April 9, 2011 by mdmedicine

Definition Oxygen toxicity is the increased oxygen content in the tissues beyond certain level. It is also called oxygen poisoning. Cause It occurs because of breathing pure oxygen with high pressure of 2-3 atmospheres (hyperbaric oxygen). In this condition, an … Continue reading →

Posted in Physiology | Tagged , , , , | Leave a comment

Sleep Disorder

Posted on April 9, 2011 by mdmedicine

Definition Sleep disorders involve any difficulties related to sleeping, including difficulty falling or staying asleep, falling asleep at inappropriate times, excessive total sleep time, or abnormal behaviors associated with sleep. Causes, incidence, and risk factors Many different disorders of sleeping … Continue reading →

Posted in Physiology | Tagged , , , , , , , , | 2 Comments

Cardiac conduction system and its relationship with ECG/EKG

Posted on March 26, 2011 by mdmedicine

General concept of Cardiac conduction system and its relationship with ECG/EKG has been described in very simple manner in this video. Such as P wave , QRS complex, T  wave , P-Q/P-R interval , Q-T interval etc…

Posted in Physiology | Tagged | 1 Comment

Hemostasis

Posted on March 24, 2011 by mdmedicine

DEFINITION: Hemostasis is defined as arrest or stoppage of bleeding STAGES OF HEMOSTASIS: When a blood vessel is injured, the injury initiates a series of reactions resulting in hemostasis. It occurs in three stages: 1. Vasoconstriction 2. Platelet plug formation … Continue reading →

Posted in Physiology | Tagged , | Leave a comment

Introduction…

Posted on March 20, 2011 by mdmedicine

Hello Friends ! This is my effort to bring knowledge and information to a single platform for everyone to be benefited. Please actively participate and give suggestions for improvement. Thanks…

Posted in Anatomy, Physiology, Uncategorized | 3 Comments