Nursing Study 123

         STRUCTURE AND FUNCTION OF A NEPHRON   Nephrons are excretory or functional units of the kidneys. Each nephron is formed of two parts .   1 Bowman's capsule.  2 nephric tubule.                                                                                                        1  BOWMAN'S CAPSULE                                            /                 NEPHRON {.                                            ...

                    Menstrual cycle What happened when the egg is not fertilized ? Definition                  Menstrual cycle involves the series of cycle changes occurring in the ovaries and female reproductive trach during the reproductive period of female .  Introduction.  Reproductive period of female extends from puberty to menopause during this period, every month a menstrual cycle occurs whose peculiar feature is period ' _ the vaginal bleeding ( called menstruation ) that lasts for about four days . primary aim of menstrual cycle is to prepare the female for fertilization and pregnancy.   Period.              On average, a  menstrual cycle is completed in 28 days (mensem means a month) though it may very by 1 or 2 days.  Phases.               Menstrual cycle is divided into four ph...

          Central Nervous system: Human Brain                                                1 position and shape .                                    Human Brain is a soft ,whitish, large and  slightly flattened structure present in the cranial cavity of cranium ( brain box ) of skull . Brain is the centre of thinking which involves complex  mechanism and neural connections which are located in the brain.  Brain is also the main coordinating center of the body. Different parts of brain integrate different inputs and send different outputs.                          2. Meninges.                           ...

                   Blood pressure Blood pressure is the pressure exerted by the blood on the wall of blood vessels in which it is present.                                  Types      Blood pressure is of two types :            1.  Systolic blood pressure          2.   Diastolic blood pressure Systolic blood pressure-                             It is the pressure exerted by the blood on the wall of blood vessels during the period of maximum ventricular systolic contraction. In a normal resting adult man , it is about 120 mmHg .                                           Diastolic blood pres...

                          DOUBLE CIRCULATION 1 DEFINATION-   in double circulation , the blood passes twice through the heart to supply once to the body      2 two circulation-.               Double circulation involves two circulations.              1 systemic circulation,and                       2 pulmonary circulation                    1 systemic circulation.                In this, blood completes its circulation from left ventricle to right auricle through the body organs. Here, the left ventricle pumps oxygenated blood into systemic aorta which supplies it to body organs other than the lungs through a number of arteries. Deoxygenated blood from these organs is...

         FEMALE REPRODUCTIVE SYSTEM   It is concerned with formation of ova, fertilization,foetal development and child birth.it is formed of following parts..                                      1 ovaries.                     These are the primary sex organs of female. These are one pair,small sized , almond- shaped and whitish structures present in the pelvis of abdomen, one on either side of uterus. So ovaries are abdominal in position.internally , each ovary is with large number of immature primary or ovarian follicles.after puberty every month a primary follicle transforms into a mature or graafian follicle under the stimulation of FSH of anterior pituitary.each graafian follicle  is with a developing ovum.                             ...