Lab 1: Directional Terms

Biol 2401 Lab

Levels of Organization

Basic characteristics of all living things

• Organization• Cells• Metabolism and excretion

– Anabolism– Catabolism

• Responsiveness and movement• Development, growth, and differentiation• Homeostasis• Reproduction• Evolution / genetics

Organ Systems / Integumentary

Organ Systems / Skeletal

Organ Systems / Muscular

Organ Systems / Nervous

Organ Systems / Cardiovascular

Organ Systems / Lymphatic

Organ Systems / Respiratory

Organ Systems / Urinary

Organ Systems / Digestive

Organ Systems / Endocrine

Organ Systems / Reproductive

Female Reproductive System

Male Reproductive System

Homeostasis

• Definition

• Autoregulation (intrinsic regulation)– Example?

• Extrinsic regulation– Example?

Homeostatic Control Mechanisms

• Receptor

• Afferent signal

• Control Center

• Efferent signal

• Effector

ATLAS A

General Orientation

Anatomical Position

Anatomical Planes and Sections

Anatomical Directions

Anatomical Directions

Body Regions

Anatomical Regions

• Abdominopelvic quadrants

Anatomical Regions

Body Cavities

• Functions

• Dorsal Body Cavity– Cranial cavity– Spinal cavity

• Ventral Body Cavity– Thoracic– Abdominopelvic

Body Cavities

Body Cavities

Ventral Body Cavity

• Thoracic• Mediastinum

– Superior– Inferior

• Pleural cavities

Ventral Body Cavity

• Diaphragm• Abdominal region• Pelvic region

Body Cavities

Serosa / Serous Membranes

• Fluid filled?• Function?• Parietal Serosa• Visceral Serosa• Named for the

specific cavity or organ it is associated with

• Homeostatic imbalance

Serous MembranesSerous Membranes

Pleura

Pericardium

Peritoneum Retroperitoneal