Small intestine

Screenshot 2023 10 18 082509 Small intestine

The small intestine is a long, narrow, tube-like organ that is part of the gastrointestinal tract. It follows the stomach and connects to the large intestine. The primary function of the small intestine is the digestion and absorption of nutrients from the food we eat. Structure of the Small Intestine: The small intestine is divided … Read more

Anatomy of the stomach

Screenshot 2023 10 18 080903 Anatomy of the stomach

According to biology, the stomach is the J-shaped, thick-walled organ that lies in the digestive cavity of the body. Even though a minimal percentage of digestion occurs in the mouth, the digestive process begins in the buccal cavity itself. The stomach connects the esophagus to the first part of the small intestine, known as the … Read more

Digestive system

Screenshot 2023 10 17 232304 Digestive system

“The gastrointestinal tract is part of an organ system in humans and other animals that takes in food, digests it, absorbs nutrients, and expels it out in the form of feces.” The gastrointestinal tract in humans begins at the mouth, continuing through the esophagus, stomach, and small and large intestines. The GI tract is about … Read more

Respiratory volumes and capacities

Screenshot 2023 10 17 225643 Respiratory volumes and capacities

Lung Volumes and Capacities: Lung volumes and capacities describe the amount of air within the lungs and the ability to move air during different phases of respiration. Here are the commonly measured lung volumes and capacities: 1. Tidal Volume (TV): The, Tidal Volume measures the air volume the lungs inhale and exhale during an unforced, … Read more

Regulation and Mechanism of Respiration

Screenshot 2023 10 17 215315 Regulation and Mechanism of Respiration

Respiration, the process of breathing, is a vital physiological function that ensures the exchange of oxygen and carbon dioxide between the body and the external environment. It is a complex process that involves both voluntary and involuntary control mechanisms. In this detailed note, we will explore the regulation and mechanism of respiration. 1. Respiratory Centers … Read more

Anatomy of lungs

Screenshot 2023 10 17 214105 Anatomy of lungs

The lungs are vital organs in the respiratory system, exchanging oxygen (O2) and carbon dioxide (CO2) between the blood and the air. Understanding their anatomy is crucial for comprehending their function and how they support respiration. 1. Lobes: •Each lung is divided into lobes. The right lung has three lobes: the upper, middle, and lower … Read more

Respiratory system

Screenshot 2023 10 17 212451 Respiratory system

The respiratory system is a complex biological system in the human body responsible for the process of breathing. It includes the lungs, airways (such as the trachea and bronchi), and various muscles and structures that work together to facilitate the exchange of oxygen and carbon dioxide between the body and the external environment. This exchange … Read more

Blood Pressure and Its Regulation

Screenshot 2023 10 17 203555 Blood Pressure and Its Regulation

Blood pressure refers to the force of blood exerted on the walls of the arteries as the heart pumps blood throughout the circulatory system. It is a crucial physiological parameter that, when regulated properly, ensures the delivery of oxygen and nutrients to body tissues. In this detailed note, we will explore blood pressure and the … Read more

Cardiac Cycle and Heart Sounds

Screenshot 2023 10 17 201840 Cardiac Cycle and Heart Sounds

The cardiac cycle is the sequence of events that occur during one complete heartbeat, which includes the relaxation (diastole) and contraction (systole) of the heart chambers. These events are accompanied by distinct sounds known as heart sounds. In this detailed note, we will explore the cardiac cycle and the heart sounds in depth. Cardiac Cycle: … Read more

Blood Vessels and Circulation

Screenshot 2023 10 17 191955 Blood Vessels and Circulation

Blood Vessels and Circulation: The circulatory system, also known as the cardiovascular system, is responsible for the continuous movement of blood throughout the body. It ensures the delivery of oxygen and nutrients to tissues and the removal of carbon dioxide and other waste products. At the core of this system are the blood vessels, which … Read more