Introduction

This study guide summarizes the key topics, terminology, and laboratory exercises for the first six weeks of a college-level Anatomy & Physiology I course. It is organized by week and topic, providing definitions, examples, and essential details for exam preparation.

Week 1: Anatomical Terminology and Organ Systems

Anatomical Terminology

Understanding anatomical terms is essential for describing locations and relationships of body parts.

• Surface Anatomy Terms: Terms used to describe specific regions of the body (e.g., frontal, axillary, patellar).

• Anatomical Position: The standard reference position for the body in the study of anatomy. The body is erect, facing forward, arms at the sides with palms facing forward.

• Body Planes and Sections:

  • Frontal (coronal) plane: Divides the body into anterior and posterior parts.

  • Sagittal plane: Divides the body into right and left parts.

  • Transverse plane: Divides the body into superior and inferior parts.

  • Oblique plane: Passes through the body at an angle.

• Orientation/Direction Terms: Used to describe the location of one body part relative to another (e.g., superior/inferior, medial/lateral, proximal/distal, superficial/deep).

• Body Cavities:

  • Dorsal body cavity: Contains the cranial and vertebral cavities.

  • Ventral body cavity: Contains the thoracic and abdominopelvic cavities.

  • Thoracic cavity: Contains the heart and lungs.

  • Abdominopelvic cavity: Contains digestive, urinary, and reproductive organs.

• Abdominopelvic Quadrants and Regions:

  • Quadrants: Right upper, left upper, right lower, left lower.

  • Regions: Right/left hypochondriac, epigastric, right/left lumbar, umbilical, right/left iliac (inguinal), hypogastric (pubic).

Organ Systems Overview

Students should be able to name the major organ systems and their primary organs.

• Examples: Thymus (lymphatic), heart (cardiovascular), lungs (respiratory), stomach (digestive), kidney (urinary), etc.

Week 2: Microscopy, Cells, and Tissues

The Microscope

Understanding the microscope is fundamental for studying cells and tissues.

• Parts of the Microscope: Each part has a specific function (e.g., objective lens, stage, coarse/fine focus).

• Proper Technique: Includes focusing, adjusting light, and calculating magnification.

• Key Calculations:

  • Total Magnification:

  • Working Distance: Distance between the objective lens and the specimen.

  • Field Size: The diameter of the area visible through the microscope.

  • Object Size: Can be estimated using field size and proportion.

Cell Structure

• Key Organelles: Plasma membrane, mitochondrion, ribosome, Golgi apparatus, smooth/rough ER, lysosome, centriole, vacuole, nucleus, nucleolus, chromatin, nuclear envelope.

Cell Division

• Mitosis Stages: Prophase, metaphase, anaphase, telophase.

Classification of Epithelial Tissues

• Simple Epithelium: Single cell layer (e.g., simple squamous, cuboidal, columnar).

• Stratified Epithelium: Multiple layers (e.g., stratified squamous, transitional).

• Pseudostratified Columnar Epithelium: Appears layered but is not.

Week 3: Connective Tissues and Integumentary System

Connective Tissues

• Types: Areolar, adipose, dense regular (white fibrous), bone, blood, fibrocartilage.

The Integumentary System

• Skin Structures: Epidermis, dermis, hair shaft/root/follicle, sebaceous gland, sweat gland, arrector pili muscle, dermal papillae, tactile (Meissner's) and lamellar (Pacinian) corpuscles, vein, artery, lymph vessel, adipose tissue.

• Epidermal Layers: Stratum corneum, lucidum, granulosum, spinosum, basale.

• Microscope Slides: Identify skin with hair, hair root, epidermis, dermis, sebaceous gland, hair follicle, tactile and lamellar corpuscles.

Cartilage and Bone Overview

• Types of Cartilage: Hyaline, fibrocartilage, elastic cartilage.

• Bone Structure: Central canal, lamella, canaliculus, lacuna.

Week 4: The Skeleton – Bones and Landmarks

Cranial and Facial Bones

• Cranial Bones: Frontal, parietal, temporal, occipital, sphenoid.

• Facial Bones: Mandible, maxillary, palatine, zygomatic, lacrimal, nasal, vomer, inferior nasal concha.

• Landmarks: Glabella, sagittal suture, coronal suture, squamous suture, mastoid process, foramen magnum, etc.

Vertebral Column

• Regions: Cervical (atlas, axis), thoracic, lumbar, sacrum, coccyx.

• Landmarks: Transverse process, spinous process, vertebral foramen, body.

Thoracic Cage

• Sternum: Manubrium, body, xiphoid process.

• Ribs: True, false, floating.

Shoulder (Pectoral) Girdle and Arm

• Clavicle, scapula, humerus, ulna, radius, carpals, metacarpals, phalanges.

• Landmarks: Spine, acromion, coracoid process, glenoid cavity, head, tubercles, epicondyles, olecranon fossa, etc.

Week 5: Pelvic Girdle and Lower Limb

Pelvic Girdle

• Coxal bone (os coxae): Ilium, ischium, pubis.

• Landmarks: Acetabulum, auricular surface, iliac crest, obturator foramen, pubic symphysis, etc.

• Sex Differences: Male vs. female pelvis (e.g., wider pelvic inlet in females).

Thigh, Leg, and Foot

• Femur, tibia, fibula, tarsals, metatarsals, phalanges.

• Landmarks: Head, neck, trochanters, condyles, malleoli, etc.

Week 6: Articulations and Body Movements

Classification of Joints

• Fibrous Joints: Joined by fibrous tissue, no joint cavity (e.g., suture, syndesmosis, gomphosis).

• Cartilaginous Joints: Joined by cartilage, no joint cavity (e.g., symphysis, synchondrosis).

• Synovial Joints: Freely movable, joint cavity present (e.g., hinge, pivot, condyloid, ball and socket, saddle).

Examples of Synovial Joints

• Hinge joint: Elbow

• Pivot joint: Atlantoaxial joint

• Condyloid joint: Radiocarpal joint

• Ball and socket joint: Shoulder and hip

• Saddle joint: 1st metacarpal and trapezium

Tables

The following table summarizes the main body cavities and their contents:

Additional info: This guide expands on the original syllabus by providing definitions, examples, and context for each topic, ensuring a comprehensive review for laboratory and practical exams.