Obalectures

By Oba Mike  Image credit: courses.lumenlearning.com Introduction Sexual reproduction is the process by which organisms produce offspring by making germ cells called gametes. The male gamete (sperm cell or spermatozoon) then unites with the female gamete (egg cell or ovum or secondary oocyte) through a process called fertilization to form a single cell called zygote that begins to grow through cleavage (cell division). Unlike other systems, the reproductive system is different in males and females both structurally and functionally. Study of the male reproductive system and the diseases that affect it is termed Urology . Organs of the Male Reproductive System The organs are grouped into: 1. Testis (main sex gland) 2. Ducts (epididymis, vas deferens, ejaculatory duct and urethra) 3. Accessory sex glands (seminal vesicle, prostate, and bulbourethral gland) 5. Supporting structures (scrotum, penis, and spermatic cord). The organs can also be grouped into e

By Oba Mike                            image credit: biology.mit.edu IMPORTANCE OF STUDYING GENETICS The following are some of the reasons nurses need to study genetics: 1.    All nurses have roles in the delivery of genetic services and management of genetic information. 2.    Nurses require genetic knowledge to identify, care or refer persons affected by or at risked of genetic disorders. 3.    Nurses can offer care that protects patients and families from the risk associated with genetic information, including addressing family issues. 4.    Genetic nursing is practiced in different environments such as maternity, paediatrics, psychiatry, and community health nursing. 5.    Nurses require genetic knowledge to solve the physical, spiritual, ethical, and psychological aspects of patients and families with genetic issues.   GENE     Gene is the basic unit of inheritance.     It is a segment of DNA that codes for a trait. For example, a segment o