Helena Suarez Orovay S XXXXXXXXXX BIOL121 – Oral Presentation Transcript CEREBELLUM 1. Describe the normal anatomy and physiology of the cerebellum. 2. Can I live without a cerebellum? Explain why/why...

Helena Suarez Orovay
S00323444
BIOL121 – Oral Presentation Transcript
1. The brain is divided in to three parts: Forebrain (prosencephalon), Midbrain (mesencephalon) and hindbrain (rhombencephalon). The hind brain is further divided into two parts- metencephalon (superior) and the myelencephalon (inferior). Cerebellum develops from metencephalon, and it is in the posterior part of the brain. It is in the posterior fossa, just below the occipital and temporal lobes. It is separated from these lobes by the tentorium cerebellum, a hard layer of dura mater. The two parts of cerebellum are connected by vermis and like other central nervous structures it also consists of grey and white matter. There are three distinct lobes in cerebellum – anterior, posterior and flocculonodular lobes which are distinguished by two fissures – the primary fissure and posterolateral fissure. The cerebellum is divided into 3 cerebellar zones. There is vermis in the midline of the cerebellum. Both sides of the which are intermediate zones. The medial zone is flanked by the lateral hemisphere. There is no difference in overall structure between the outer hemisphere and the middle zone. The anatomical divisions correspond to the three major functional divisions of the cerebellum. These are: Vestibulocerebellum, Spinocerebellum and Cerebrocerebellum. The vermis's cortex coordinates movement of the trunk, including the neck, shoulders, ribcage, abdomen, and hips. Control of the distal end muscles is provided by the intermediate zone of the cerebellar hemisphere adjacent to the vermis. Remaining lateral regions of each cerebellar hemisphere enable planning...