2. 113 DDA General Anatomy & Physiology Course Director: Dr Asmaa Faden Course Contributors: Dr Maysara AlShawaf Dr Sally El-Haddad

7. Are imaginary lines used to divide the body into sections. Used to describe the location of an organ or a problem. Types: 1.Horizontal Plane. 2.Sagittal Plane (Midsagittal Plane). 3.Frontal Plane.

11. - In the human body the organs lie within a specific places called Body Cavities.

13. Body cavities are subdivided into : (I) The dorsal body cavity which is divided into: 1- Cranial cavity contains the brain 2- Spinal cavity contains the spinal cord

14. (II) The ventral body cavity and is subdivided into: 1- Thoracic cavity: contains the heart, lungs, esophagus and trachea. 2- Abdominopelvic cavity: i- Abdominal cavity: contains stomach, liver, gallbladder, spleen & intestines. ii- Pelvic cavity contains portion of the small & large intestine, rectum, urinary bladder & reproductive organs.

17. Human Body Structural Units

18.  They are the smallest living units of the body.  1.75 trillion cells = 1000,000,000,000 cells.  Cells have nucleus & cytoplasm.  Cells are able to: React to stimuli & transform nutrients into energy. Grow. Reproduce. The Cell

21.  Different types of cells have different functions, e.g.:  Brain Cells  Blood Cells  Lung Cells  The term for specialization of cells is called differentiation.

22.  Each type of cell has a specific age to live:  Intestinal cell (1 ½ day).  RBCs (120).  Nerve cell (100 days).

25. Human Body Structural Units

27. Human Body Structural Units