Ad
related to: when does pollen transfer occur in adults mayo clinic symptoms causes of stroke
Search results
Results From The WOW.Com Content Network
Woman experiencing mini stroke symptoms. Every year, nearly 800,000 people will have a stroke, according to the CDC. Most of these strokes will be what's called "ischemic," which happens when ...
Advanced age is one of the most significant stroke risk factors. 95% of stroke occurs in people age 45 and older, and two-thirds of stroke occurs in those over the age of 65. [53] [230] A person's risk of dying if he or she does have stroke also increases with age. However, stroke can occur at any age, including in childhood. [citation needed]
Cerebral infarction, also known as an ischemic stroke, is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). [1] In mid to high income countries, a stroke is the main reason for disability among people and the 2nd cause of death. [2]
Hemorrhaging can occur in instances of embolic ischemia, in which the previously obstructed region spontaneously restores blood flow. This is known as a hemorrhagic infarction and a resulting red infarct occurs, which points to a type of cerebral softening known as red softening .
The most common presentation of cerebrovascular disease is an ischemic stroke or mini-stroke and sometimes a hemorrhagic stroke. [2] Hypertension (high blood pressure) is the most important contributing risk factor for stroke and cerebrovascular diseases as it can change the structure of blood vessels and result in atherosclerosis . [ 5 ]
Pollen itself is not the male gamete. [4] It is a gametophyte, something that could be considered an entire organism, which then produces the male gamete.Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell.
Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds. [1] Pollinating agents can be animals such as insects, for example beetles or butterflies; birds, and bats; water; wind; and even plants themselves.
Presumed perinatal stroke is a condition when the stroke is only diagnosed after the neonatal period and does not have any significance in neurological examination within the 28 days after birth. [19] The majority of infants who were later diagnosed with presumed perinatal stroke were free of symptoms during the neonatal period. [20]