University of port Harcourt

Cardiovascular physiology refers to the study of the heart and blood vessels' functions in circulating blood throughout the body. The heart pumps blood through the circulatory system, which is vital for delivering oxygen, nutrients, and hormones to tissues, and removing waste products like carbon dioxide. The heart operates in two main phases: systole(contraction) and diastole (relaxation). During systole, the heart pumps blood from the ventricles into the arteries (aorta and pulmonary arter...

The menstrual cycle is a monthly process in females that prepares the body for pregnancy. It is typically about 28 days long but can vary. The cycle is divided into four main phases: 1. Menstrual Phase (Days 1-5): The shedding of the uterine lining (endometrium) occurs, leading to menstruation (period). This marks the beginning of a new cycle. 2. Follicular Phase (Days 1-13):Overlaps with menstruation and continues after. Follicle-stimulating hormone (FSH) stimulates the growth of ovari...

This is a written note gotten from my professor on the topic sympathetic nervous system,which is a subtopic in the broad subject of human embryology. The sympathetic nervous system (SNS) is part of the autonomic nervous system, responsible for controlling the body's "fight or flight" response during stressful situations. It prepares the body for rapid action by increasing heart rate, dilating pupils, relaxing airways, and redirecting blood flow to muscles, among other effects. The SNS helps...