**Author details**

António Gerson Bastos Francisco, Isaura da Conceição Almeida Lopes, Amílcar Bernardo Tomé da Silva and Henrique Cotchi Simbo Muela\* Department of Physiology of Faculty of Medicine, Agostinho Neto University, Luanda, Angola

\*Address all correspondence to: henrimuela@hotmail.com

© 2022 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
