PPT-Dr. ali al-bayati Lec. 4

Cholesterol metabolism INTRODUCTION Cholesterol is the major sterol in the animal tissues Cholesterol is present in tissues and in plasma either as free cholesterol or as a storage form combined with a longchain fatty acid as cholesteryl ester. Hormones of the pancreas and GIT. the pancreas . DEFINITION. The . pancreas (pan= all , . kreas. = flesh) is . a gland that is . partly exocrine and . partly endocrine. . The . exocrine part secretes . Hypothalamic . – Pituitary Axis. Hypothalamus. Anterior pituitary. Posterior pituitary. Neurosecretory. neurons. Systemic . arterial . inflow. Hypothalamic-hypophyseal. portal system. System. venous. Lipoproteins & . their Metabolism. Functions . of Lipoproteins. General Characteristics of . Lipoproteins. The lipoprotein molecules have a polar periphery made of proteins, polar heads of phospholipids and cholesterol. The inner core consists of the hydrophobic . Biochemistry of the Parathyroid Glands & Ca. +2. homeostasis. Calcium metabolism. Most . abundant mineral in the human body. Total . Calcium in the . human body is about 1 to 1.5 kg, 99% of which . Hypothalamus. Anterior pituitary. Posterior pituitary. Neurosecretory. neurons. Systemic . arterial . inflow. Hypothalamic-hypophyseal. portal system. System. venous. outflow. Hypophysiotropic H.:. Anterior pituitary hormones: . Introduction. Cell signaling: . a biological mechanism that occurs in cells which gives cells an ability to receive or generate the signals in response to their surrounding environment.. Cell to cell communication .