A rooster, also known as a cockerel or cock, is a male gallinaceous bird, usually a male chicken (Gallus gallus).he term rooster originates in the United States, and the term is widely used throughout North America, as well as Australia and New Zealand. The older terms cock or cockerel, the latter denoting a young cock, are used in the United Kingdom and Ireland.
The bleeding causes swelling of the brain and increased pressure in the skull. The swelling and pressure damage brain cells and tissues. Examples of conditions that can cause a hemorrhagic stroke include high blood pressure, aneurysms, and arteriovenous (ar-TEER-e-o-VE-nus) malformations (AVMs). Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps blood.
As an aneurysm increases in size, the risk of rupture increases, leading to uncontrolled bleeding. Although they may occur in any blood vessel, particularly lethal examples include aneurysms of the Circle of Willis in the brain, aortic aneurysms affecting the thoracic aorta, and abdominal aortic aneurysms.