Search results
Results from the WOW.Com Content Network
Venous blood can once more enter the chest and the heart; cardiac output increases. Return of cardiac output Blood return to the heart is enhanced by the effect of the entry of blood that has been dammed back, causing a rapid increase in cardiac output (24 seconds on). The stroke volume usually rises above normal before returning to a normal level.
Arterial bleeding: As the name suggests, blood flow originating in an artery. With this type of bleeding, the blood is typically bright red to yellowish in colour, due to the high degree of oxygenation. Blood typically exits the wound in spurts, rather than in a steady flow; the blood spurts out in time with the heartbeat. The amount of blood ...
Vertebral artery dissection is one of the two types of cervical artery dissection.The other type, carotid artery dissection, involves the carotid arteries.Vertebral artery dissection is further classified as being either traumatic (caused by mechanical trauma to the neck) or spontaneous, and it may also be classified by the part of the artery involved: extracranial (the part outside the skull ...
The carotid arteries are major blood vessels in the neck that branch into smaller vessels called the external and internal carotid arteries. [3] In carotid artery dissection, a tear in the arterial wall allows blood to flow between the layers of the artery, leading to potential narrowing, reduced blood flow, or clot formation, which may cause a ...
Casualty lifting is the first step of casualty movement, an early aspect of emergency medical care. It is the procedure used to put the casualty (the patient) on a stretcher. Developed emergency services use lifting devices, such as scoop stretchers, that allow secured lifting with minimal personnel. Other methods (explained below) can be used ...
The carotid sinus contains numerous baroreceptors which function as a "sampling area" for many homeostatic mechanisms for maintaining blood pressure.The carotid sinus baroreceptors are innervated by the carotid sinus nerve, which is a branch of the glossopharyngeal nerve (CN IX).
The narrowing of blood vessels leads to an increase in peripheral resistance, thereby elevating blood pressure. While vasoconstriction is a normal and essential regulatory mechanism for maintaining blood pressure and redistributing blood flow during various physiological processes, its dysregulation can contribute to pathological conditions.
ICE catheters are limited in size as they must be introduced inside the blood vessels. Limitation of the size of the catheter limits the ultrasound crystal and the image quality obtainable. However, because the catheter can be readily moved into close proximity of the desired structure, the quality limitation can be reduced. [citation needed]