Anatomy Physiology Study of human biology is divided

Anatomy & Physiology Study of human biology is divided into two primary areas.

1. Anatomy - (Greek Ana = up, tome cutting) field of study that describe the A. Gross Anatomy - study of body structures that are B. Microanatomy Histology - level only. . C. Systematic Anatomy - Studies body structure (skeletal, muscular). D. Regional Anatomy region (head, leg). with in a given

n 2. Physiology - (Greek physio = nature, logic=study) n n A. Human physiology – Study of specific B. Cellular & Systemic Physiology – emphasizes

Structural Levels of Organization n Small (Simple) to Large (Complex)

Organ Systems

Characteristics of Life 1. 2. 3. 4. 5. 6. Anabolism - build up Catabolism - break down

Homeostasis - Balance of Life Internal environment is world around itself. to the

Two types of Control n 1. Negative feedback – .

Negative Feedback

2. Positive feedback - rare in a healthy body because a change in normal state

Health & Disease any reduction from the Acute – Chronic – Symptoms - sensations, dizziness, pain Diagnosis - identifying a disease from its symptoms

Classification of disease 1. Congenital Can be inherited May cause death Ex. 2. Immunological – Defense reaction by white blood cells (WBC’s) Ex. 3. Metabolic May cause death trauma. Ex. 4. Neoplastic Ex.

Directional terms

Directions

Correct Anatomical Position 1. Facing a. 2. Palms a. b.

Body Planes (imaginary planes) 3 Basic Types Sagittal – Midsagittal Parasagittal 2. Frontal 3. Horizontal – halves Cross Section (transverse).

The Body Plan

Body Parts & Regions

Body Cavities (Spaces) 2 Major 1. Dorsal Cavities 2. Ventral Cavities - upper a. Abdominal Pelvic Cavity a. b. separate the 2 cavities

Body Cavities (Spaces) 2 Major 1. Dorsal Cavities Cranial Cavity Vertebrate Canal 2. Ventral Cavities Thoracic - upper a. Pleural b. Pericardial Abdominal Pelvic Cavity a. Abdominal cavity b. Pelvic Cavity Diaphragm separate the 2 cavities

Cavities are covered by membranes Serous Membrane –. a. Visceral – b. Parietal c. usually fluid between the two to reduce friction by body movement.

Cavities are covered by membranes n 2. n 3. n 4. cavity. - Surrounds the heart. – Covers the lungs. – Lines the abdominolpelvic A. support organs n B. n – fused peritoneum to – behind the peritonium.

Cavities are covered by membranes