Falls are the most common cause of traumatic brain injury, and falling poses an especially serious risk for older adults. When a senior sustains a traumatic brain injury in a fall, direct effects of the injury may result in long-term cognitive changes, reduced ability to function and changes in emotional health.
Asexual reproduction is by means of spores produced in sporangia borne on the hyphae. Zygomycota get their name from the production of thick-walled sexual structures called zygosporangia, which can remain dormant for long periods.
With the exception of unicellular yeasts, the Ascomycetes are filamentous during development and their hyphae are septate (divided into cells). Reproduction is usually by the formation of specialized spores, called conidia, borne at the tips of hyphae in specialized structures (conidiophores).