Unit 1 – Introduction to Anatomical Terms

Overview of Anatomical Terminology

This unit introduces foundational anatomical terms and concepts essential for understanding human body structure and orientation.

• Directional Terms: Standardized terms used to describe locations and positions on the body (e.g., anterior, posterior, superior, inferior).

• Regional Terms: Specific terms for regions of the body (e.g., brachial for arm, femoral for thigh).

• Body Planes and Sections: Imaginary lines dividing the body to describe locations or directions (e.g., sagittal, frontal, transverse planes).

• Organ Systems: Groups of organs with related functions (e.g., digestive, respiratory, nervous systems).

Example: The heart is medial to the lungs and superior to the diaphragm.

Unit 3 – Introduction to the Microscope

Microscope Structure and Use

This unit covers the basic parts and functions of the compound light microscope, a key tool in anatomical and physiological studies.

• Parts of the Microscope: Includes ocular lens (eyepiece), objective lenses, stage, coarse and fine focus knobs, light source, and base.

• Total Magnification: Calculated by multiplying the magnification of the ocular lens by that of the objective lens.

Formula:

Example: If the ocular lens is 10x and the objective lens is 40x, total magnification is 400x.

Unit 4 – Cytology

Cell Structure and Identification

This unit focuses on the identification of cell structures and the use of models and microscopes to study cells.

• Anatomical Cell Model: A 3D representation of a typical animal cell, showing organelles such as the nucleus, mitochondria, and endoplasmic reticulum.

• Cell Cycle: The series of phases (interphase, mitosis, cytokinesis) that cells undergo for growth and division.

• Microscope Use: Identifying cell structures under various magnifications.

Example: The nucleolus is visible within the nucleus and is responsible for ribosome synthesis.

Unit 5 – Histology

Tissue Types and Microscopic Identification

This unit covers the identification and classification of the four basic tissue types in the human body using microscopy.

• Epithelial Tissue: Covers body surfaces and lines cavities; classified by cell shape and layers (e.g., simple squamous, stratified cuboidal).

• Connective Tissue: Supports, binds, and protects organs (e.g., adipose, bone, blood).

• Muscle Tissue: Responsible for movement; types include skeletal, cardiac, and smooth muscle.

• Nervous Tissue: Conducts electrical impulses; consists of neurons and supporting glial cells.

Example: Simple squamous epithelium is found lining blood vessels and allows for rapid diffusion.

Unit 6 – Integumentary System

Skin Structure and Function

This unit explores the anatomy of the skin and its accessory structures, focusing on identification using models.

• Anatomical Skin Model: Demonstrates layers of the skin (epidermis, dermis, hypodermis) and structures such as hair follicles, sweat glands, and sensory receptors.

• Functions of the Integumentary System: Protection, sensation, thermoregulation, and vitamin D synthesis.

Example: The epidermis is composed primarily of keratinized stratified squamous epithelium.

Unit 8 – Skeletal System

Axial and Appendicular Skeleton

This unit involves the identification of bones and major features of the human skeleton, divided into axial and appendicular components.

• Axial Skeleton: Consists of the skull, vertebral column, and thoracic cage.

• Appendicular Skeleton: Includes the bones of the limbs and girdles (pectoral and pelvic girdles).

• Skull Anatomy: Identification of anterior, lateral, and posterior views of the skull, including major bones and landmarks.

• Thoracic Cage: Composed of ribs, sternum, and thoracic vertebrae; protects vital organs.

Example: The foramen magnum is a large opening in the occipital bone of the skull through which the spinal cord passes.

Summary Table: Major Tissue Types

Additional info: The syllabus references specific pages and figures for lab identification, indicating the importance of hands-on model and microscope work in this course.