Chambers of the Heart: Auricles and Ventricles
The heart is internally divided into several compartments, well separated by septum and valves, called the chambers of the heart. The human heart has four chambers, two auricles, and two …Read more
Human anatomy is the science that deals with the physical morphology and structure of the human body.
Human anatomy is further divided into two groups; gross anatomy and microscopic anatomy. Gross anatomy involves study related to anatomical structures that can be seen with unaided eyes, while microscopic anatomy is the study of minute anatomical structures, histology, and cytology.
Humans belong to the Subphylum Vertebrate of the Phylum Chordata as they have the characteristic internal skeleton with a backbone of vertebrae.
其他典型的哺乳动物的结构mans include hair, mammary glands, and highly developed sense organs.
Besides, among mammals, humans have a predominantly two-legged (bipedal) posture, along with a highly developed intellectual.
The chemical composition of the human body is composed of water and organic compounds like proteins, carbohydrates, and lipids.
The human body is composed of specialized systems for different purposes; the digestive system for digestion, the respiratory system for respiration, the reproductive system for reproduction, and the skeletal and muscular system for movement.
Cells are the fundamental units of the human body consisting of trillions of cells in the body. The cells together form tissues.
Four basic types of tissues are found in humans, each of which is specialized for a particular purpose; epithelial tissue for covering the body, muscular tissue for movement, nerve tissues for signaling, and connective tissue for transport of nutrients.
The following organization of the human body is organs. An organ is composed of a group of specialized tissues from a structural and functional unit.
Organs are followed by the system as the final organization of the human body. The body includes nine major organ systems, each composed of various organs and tissues that work together as a functional unit.
Information on human anatomy is essential during the analysis of signs of symptoms of different diseases and disease diagnoses.
It also allows an understanding of the relationship between different organ systems and the changes occurring in the body’s anatomy during growth.
Human physiology is a branch of natural science that deals with the functioning of the human body.
It includes various physiological activities like digestion, respiration, spermatogenesis, oogenesis, and excretion, all of which occur in a coordinated way between various organs and systems.
Physiology includes the mechanical, physical, bioelectrical, and biochemical functioning of a healthy human body.
A normal human body works as a result of the regulated system of networking between different systems. These interactions work towards maintaining homeostasis.
The concept of homeostasis is important in human physiology as it explains that the internal environment of an organism moves in a direction to maintain an equilibrium.
In the human body, homeostasis is maintained at the system level with each system trying to maintain its homeostasis.
Human physiology, like human anatomy, describes the mechanisms from the molecular to the cellular level, integrating the working of the entire body.
Based on the information obtained via studies done on human physiology, it is understood that the cells, tissues, organs, and systems together work to maintain a healthy human body.
Besides, certain compounds or chemicals produced in the body like enzymes and hormones also aid in the process of human physiology.
A slight change in the working of a single organ in the body might affect the working of the entire body overall.
Human physiology is closely related to human anatomy where the anatomy of an organ or tissue plays a significant role in the physiology of the said organ or tissue.
Human physiology is also interrelated with clinical medicine and microbiology where different microorganisms found within the body aid in different processes like bacteria in the gut producing acid and other enzymes that aid in digestion.
During the life cycle of humans, the body undergoes multiple changes which are influenced by changes in anatomy and changes in environmental factors. The physiology of the body thus adapts to such changes to maintain homeostasis.
The heart is internally divided into several compartments, well separated by septum and valves, called the chambers of the heart. The human heart has four chambers, two auricles, and two …Read more
The pericardium is a double-layered sac that surrounds the heart externally. It is a double-walled sac-like structure; hence, it is also called the pericardial sac. Pericardium Structure Histologically, the pericardium …Read more
There are three layers of the heart. They are: 1. Epicardium (Outermost Layer of Heart) Epicardium Structure Functions of Epicardium Epicardium-associated Diseases 2. Myocardium (Middle Layer of Heart) Myocardium Structure …Read more
Heart valves are the specialized flap or cusp-like structures inside the heart composed primarily of dense connective tissues that maintain the one-way flow of the blood inside the heart i.e., …Read more
Capillaries are incredibly small and finer blood vessels connecting the arterioles with the venules. They are the smallest blood vessels in our body. Though it seems to be the branch …Read more
Veins are the blood vessels that collect the deoxygenated blood from the various tissues and organs of the body and transport it back to the heart. The blood vessels that …Read more
Arteries are the elastic, muscular tubes (blood vessels) responsible for carrying the blood away from the heart and distributing it to several other organs and tissues. Simply, the blood vessels …Read more
The lymphatic system is an organ system in vertebrates that helps collect (excess interstitial fluid) lymph from tissues and the transportation of the fluid back to the bloodstream for re-circulation. …Read more
心脏传导系统也被称为心脏有限公司nduction system or the intrinsic conduction system of the heart or electrical conduction system of the heart, is a group of specialized cells …Read more
Hemostasis is the physiological process of stopping bleeding (hemorrhage). It protects the body from blood loss and exsanguination and restores blood circulation within the blood vessels. In general, it includes …Read more