Triangular hole in base of skull between sphenoid, temporal, and occipital bones. Located anteromedially to carotid canal. Fills with cartilage after birth. Junction point of three skull sutures
Cerebrovascular disease affects blood vessels supplying oxygen to the brain. Most common presentation is ischemic or mini-stroke. Hypertension is most important risk factor, causing vessel changes. Other risk factors include smoking, diabetes, and atherosclerosis
TIA is a temporary stroke lasting less than 24 hours. Causes symptoms like weakness, numbness, vision problems, and speech difficulties. Symptoms typically occur on opposite side of affected brain hemisphere. Can last from minutes to 1-2 hours
Lymphocytes are white blood cells making up 18-42% of circulating WBCs. Main types are T cells (cell-mediated immunity) and B cells (humoral immunity). Natural killer cells (NK cells) play role in innate immunity. Lymphocytes have large nuclei and can be classified as small or large
The occipital bone is a flat, trapezoid-shaped bone located at the lower back of the skull. It protects the brain and supports neck muscles. Forms the atlantooccipital joint with the first vertebra for head movement. Connects to the cervical spine and affects body movements and balance
Developed by Dutch athlete Wim Hof, known as "The Iceman". Part of Wim Hof Method combining breathing with cold therapy and commitment