Tissues are formed by cells and can be differentiated into four different types: connective tissue, muscle tissue, nerve tissue, and epithelium (epithelial tissue). Epithelium is a component of almost every…
Month: May 2020
Types of anemia improved after splenectomy
Types of anemia improved after splenectomy: Spherocytosis. Thalassemia. Hypersplenism associated anemia.
Histology Connective tissue
Connective tissue Summary Connective tissue is the most abundant type of tissue in the body. It serves to connect and support other…
Causes of Splenomegaly
1-Infective causes: Bacterial (Typhoid & paratyphoid, septicemia, pyogenic abscess, tuberculosis, typhus). Viral (infective hepatitis, infectious mononucleosis). Spirochaetal (Weirs disease, syphilis) Parasitic (Bilhariziasis, hydatid cyst, malaria,trypanosomiasis, kala azar). 2-Blood diseases: Leukaemias.…
Meckel’s diverticulum
Definition of Diverticulum A blind pouch that is continuous with lumen of a hollow viscus(gut or urinary bladder) Meckel’s Diverticulum Persistent patency of the proximal part of the vitellointestinal duct. lt…
Regulation of cardiovascular system
Regulation of cardiovascular : Adaptation to short-term changes is provided by the Frank-Starling mechanism. Long-term changes in cardiac activity are regulated by the autonomic nervous system. 1. Frank-Starling mechanism: …
Obestetric Anesthesia
Physiology: Pain relief from uterine contractions and cervical dilation in stage 1 of labor involves thoracic nerve roots, T10 to T12. Pain relief from perineal distention in stage 2 of…
Placental hormones
Human chorionic gonadotropin Human chorionic gonadotropin (hCG) is produced by the placental syncytiotrophoblast and first appears in maternal blood 10 days after fertilization. It peaks at 9–10 weeks…
Fetal orientation in utero
Orientation of the long axis of the fetus to the long axis of the uterus. The most common lie is longitudinal (99% of fetuses at term). Longitudinal:…
Electrical conduction of the cardiovascular system
Physiology : cardiovascular Electrical conduction: SA node (pacemaker) creates an action potential → signal spreads across atria and causes their contraction → signal reaches AV node and is slowed down → AV node conducts the signal to bundle of His down…