Anatomy and Physiology Revision Sheet

1. 📌 Essentials

• Human tissues include muscle, connective, and epithelial types.
• Organs have specific structures directly related to their functions.
• Alveoli in lungs increase surface area for efficient gas exchange.
• Cellular metabolism produces ATP, fueling physiological processes.
• Blood pressure and enzyme levels are key diagnostic parameters- Structural abnormalities in tissues lead to various diseases.
• Circulatory and respiratory systems work together for oxygen delivery.
• Tissue damage impairs organ function and health.
• Organ sizes and functions are quantified for clinical assessment.
• Maintaining tissue integrity is vital forostasis.

2. 🧩 Key Structures & Components

• Muscle Cells — contractile units enabling movement; types include skeletal, cardiac, smooth.
• Connective Tissues — support, connect, and protect; includes bone, cartilage, blood, adipose.
• Epithelial Tissues — line surfaces and cavities; classified by shape (squamous, cuboidal, columnar) and layers (simple, stratified).
• Lungs — contain alveoli for gas exchange.
• Liver — detoxification, metabolism, and bile production.
• Blood Vessels — arteries, veins, capillaries for circulation.
• Cellular Organelles — mitochondria (ATP production), nucleus, ER.
• Organ Systems — respiratory, circulatory, digestive, excretory.

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