Lecture 2 Terminology and Body Plan for the Human Body 1-1 Anatomical Position: The Standard for Reference • Anatomical Position – Body erect, face forward, feet together, palms face forward • Other Body Positions – Supine: lying face upward – Prone: lying face downward 1-2 Body Planes • Sagittal / Midsagittal (Median)/ Parasagittal • Frontal (Coronal) • Transverse (Horizontal) / Cross • Oblique: Other than at a right angle Fig. 1.5 1-3 Terminology and Body Plan • Directional Terms – Superior versus Inferior – Anterior/Ventral versus Posterior/Dorsal – Medial versus Lateral – Proximal versus Distal – Superficial versus Deep Fig. 1.7 1-4 Body Parts and Regions Nasal (nose) Oral (mouth) Orbital (eye) Buccal (cheek) Cephalic (head) Thoracic (thorax) Axillary (armpit) Brachial (arm) Abdominal (abdomen) Antebrachial (forearm) Coxal (hip) Carpal (wrist) Manus (hand) Pelvic Digital (finger) Femoral (thigh) Patellar (knee) Crural (leg) Tarsal (ankle) Copyright © The McGraw-Hill Companies, Inc.Pes Permission required for reproduction or display. Modified from Fig. 1.8 (foot) (a) Anterior view 1-5 Body Parts and Regions Otic (ear) Thoracic (thorax) Vertebral (spinal column) Brachial (arm) Abdominal (abdomen) Antebrachial (forearm) Gluteal (buttock) Femoral (thigh) Popliteal (back of knee) Crural (leg) Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Modified from Fig. 1.8 Calcaneal (heel) (b) Posterior view 1-6 Review Question Which of the following pairs of body parts and directional terms is mismatched? (a) Popliteal/femoral; distal (b) Patellar/crural; proximal (c) Antebrachial/abdomen; lateral (d) Brachial/carpal; superior (e) Abdominal/vertebral; anterior 1-7 Body Cavities Fig. 1.9 1-8 Serous Membranes • Cover the organs of trunk cavities & line them – Parietal lines cavity walls – Visceral covers organs – Serous fluid secreted for lubrication by membranes Fig. 1.10 1-9 Serous Membranes • Named for their specific cavity & organs –Pericardium refers to heart –Pleura refers to lungs and thoracic cavity –Peritoneum refers to abdominopelvic cavity Fig. 1.10 1-10 Serous Membranes retroperitoneal Fig. 1.10 1-11 Points to Remember • Anatomical terms are very precise in anatomy so that one can accurately describe the body and its many parts. • The anatomical position is our universal reference for directional terms and body planes. • Body cavities contain and often separate organs. • Serous membranes cover the surfaces of organs and the wall of the trunk cavity. 1-12 Questions? 1-13