U-90042: Difference between revisions

Latest revision as of 10:52, 15 February 2025

Structure of the Human Heart[edit]

The human heart is a muscular organ responsible for pumping blood through the circulatory system. It is located in the thoracic cavity, between the lungs, and is roughly the size of a fist. The heart is composed of four chambers: two upper chambers called the atria and two lower chambers called the ventricles.

Chambers of the Heart[edit]

The heart's four chambers are crucial for its function:

Right Atrium: Receives deoxygenated blood from the body through the superior vena cava and inferior vena cava.
Right Ventricle: Pumps deoxygenated blood to the lungs via the pulmonary artery.
Left Atrium: Receives oxygenated blood from the lungs through the pulmonary veins.
Left Ventricle: Pumps oxygenated blood to the rest of the body through the aorta.

Valves of the Heart[edit]

The heart contains four main valves that ensure unidirectional blood flow:

Tricuspid Valve: Located between the right atrium and right ventricle.
Pulmonary Valve: Located between the right ventricle and the pulmonary artery.
Mitral Valve: Located between the left atrium and left ventricle.
Aortic Valve: Located between the left ventricle and the aorta.

Heart Wall[edit]

The heart wall consists of three layers:

Epicardium: The outer layer, which is also part of the pericardium.
Myocardium: The thick, muscular middle layer responsible for the heart's contractile function.
Endocardium: The inner layer that lines the heart chambers and valves.

Conduction System[edit]

The heart's electrical conduction system controls the heartbeat:

Sinoatrial Node (SA Node): The natural pacemaker of the heart, located in the right atrium.
Atrioventricular Node (AV Node): Relays electrical impulses from the atria to the ventricles.
Bundle of His: Transmits impulses from the AV node to the ventricles.
Purkinje Fibers: Distribute the electrical impulse throughout the ventricles.

Function[edit]

The primary function of the heart is to maintain blood circulation throughout the body. It achieves this by:

Pumping deoxygenated blood to the lungs for oxygenation.
Pumping oxygenated blood to the tissues and organs.

Related pages[edit]

@@ Line 1: / Line 1: @@
-'''U-90042''' is a synthetic compound of the [[tetrahydrocannabinol]] (THC) family. It is often used in scientific research to study the effects of THC and related compounds on the human body.
+{{DISPLAYTITLE:Structure of the Human Heart}}
-==Chemistry==
+==Structure of the Human Heart==
-U-90042 is a member of the [[cannabinoid]] family of compounds, which also includes natural substances found in the [[Cannabis (drug)|cannabis]] plant, as well as many synthetic analogues. Like other cannabinoids, U-90042 interacts with the [[cannabinoid receptor]]s found in the human body.
+[[File:U-90042_Structure.svg|thumb|right|Diagram of the human heart structure]]
+The human heart is a muscular organ responsible for pumping blood through the [[circulatory system]]. It is located in the [[thoracic cavity]], between the lungs, and is roughly the size of a fist. The heart is composed of four chambers: two upper chambers called the [[atrium|atria]] and two lower chambers called the [[ventricle|ventricles]].
-==Pharmacology==
+===Chambers of the Heart===
-The pharmacology of U-90042 is not fully understood. However, it is known to act as an [[agonist]] at the CB1 and CB2 cannabinoid receptors. These receptors are part of the [[endocannabinoid system]], which plays a role in a variety of physiological processes including pain sensation, mood, and memory.
+The heart's four chambers are crucial for its function:
-==Research==
+* '''Right Atrium''': Receives deoxygenated blood from the body through the [[superior vena cava]] and [[inferior vena cava]].
-U-90042 has been used in scientific research to study the effects of cannabinoids on the human body. For example, it has been used in studies investigating the role of the endocannabinoid system in [[neurodegenerative disease]]s, such as [[Alzheimer's disease]] and [[Parkinson's disease]].
+* '''Right Ventricle''': Pumps deoxygenated blood to the lungs via the [[pulmonary artery]].
+* '''Left Atrium''': Receives oxygenated blood from the lungs through the [[pulmonary veins]].
+* '''Left Ventricle''': Pumps oxygenated blood to the rest of the body through the [[aorta]].
-==Safety==
+===Valves of the Heart===
-As with all synthetic cannabinoids, the safety of U-90042 is not fully known. It is not intended for human consumption, and its use is typically restricted to laboratory settings.
+The heart contains four main [[heart valve|valves]] that ensure unidirectional blood flow:
-==See also==
+* '''Tricuspid Valve''': Located between the right atrium and right ventricle.
-* [[Cannabinoid]]
+* '''Pulmonary Valve''': Located between the right ventricle and the pulmonary artery.
-* [[Endocannabinoid system]]
+* '''Mitral Valve''': Located between the left atrium and left ventricle.
-* [[Synthetic cannabinoids]]
+* '''Aortic Valve''': Located between the left ventricle and the aorta.
-[[Category:Synthetic cannabinoids]]
+===Heart Wall===
-[[Category:Research chemicals]]
+The heart wall consists of three layers:
-{{Chem-stub}}
-{{Pharma-stub}}
+* '''Epicardium''': The outer layer, which is also part of the [[pericardium]].
+* '''Myocardium''': The thick, muscular middle layer responsible for the heart's contractile function.
+* '''Endocardium''': The inner layer that lines the heart chambers and valves.
+===Conduction System===
+The heart's [[electrical conduction system]] controls the heartbeat:
+* '''Sinoatrial Node (SA Node)''': The natural pacemaker of the heart, located in the right atrium.
+* '''Atrioventricular Node (AV Node)''': Relays electrical impulses from the atria to the ventricles.
+* '''Bundle of His''': Transmits impulses from the AV node to the ventricles.
+* '''Purkinje Fibers''': Distribute the electrical impulse throughout the ventricles.
+==Function==
+The primary function of the heart is to maintain [[blood circulation]] throughout the body. It achieves this by:
+* Pumping deoxygenated blood to the lungs for oxygenation.
+* Pumping oxygenated blood to the tissues and organs.
+==Related pages==
+* [[Cardiovascular system]]
+* [[Blood pressure]]
+* [[Heart disease]]
+* [[Electrocardiography]]
+[[Category:Cardiology]]
+[[Category:Anatomy]]