Biology concept note. A secondary school level approach - Nkunzabo, Ephrem
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Multi-cellular animals must monitor and maintain a constant internal environment as well respond to external environment. In many animals, these two functions are coordinated by two integrated and coordinated systems: the nervous system and the endocrine system. The Central Nervous System (CNS) is composed of the brain and spinal cord. The CNS is surrounded by bone-skull and vertebrae. Its function is to receive information, integrate and process it. CNS is the center of coordination. The CNS is enclosed and protected by meninges, a three-layered system of membranes, including a tough,…mehr

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Produktbeschreibung
Multi-cellular animals must monitor and maintain a constant internal environment as well respond to external environment. In many animals, these two functions are coordinated by two integrated and coordinated systems: the nervous system and the endocrine system. The Central Nervous System (CNS) is composed of the brain and spinal cord. The CNS is surrounded by bone-skull and vertebrae. Its function is to receive information, integrate and process it. CNS is the center of coordination. The CNS is enclosed and protected by meninges, a three-layered system of membranes, including a tough, leathery outer layer called the dura mater. The innermost membrane called the pia mater is a very delicate layer of connective tissue and capillaries. The two membranes are separated by a narrow space, the arachnoid layer, containing a network of delicate fibers. Filled with cerebrospinal fluid, the arachnoid layer cushions and protects the CNS.
Autorenporträt
Ephrem NKUNZABO nació en Kigali, Ruanda. Es licenciado en Biología con Educación por la Universidad de Ruanda, tiene un Diploma de Postgrado en Tecnología de la Información (PGD-IT) por la Universidad de Amity, UTTER PRADESH, India, y un Máster en Informática de la Salud, junto con muchas y diversas formaciones. Le apasiona la lectura y la investigación.