Lesson Notes By Weeks and Term v4 - SHS 1
Scientific Bases of Physical Activity
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Scientific Bases of Physical Activity
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Subject: Physical Education Health Elective
Class: SHS 1
Term: 2nd Term
Week: 6
Grade code: 1.2.3.LI.2
Strand code: 2
Sub-strand code: 3
Content standard code: 1.2.3.CS.1
Indicator code: 1.2.3.LI.2
Theme: Ph ysical Education
Subtheme: Scientific Bases of Physical Activity
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This lesson introduces the foundational science behind every move we make. We will explore how our body's structure (Anatomy) and function (Physiology) work together to allow us to walk, run, dance, and play sports. Understanding this is not just for scientists; it is crucial for anyone who wants to improve their performance in sports like the Black Stars players, avoid getting injured while farming or doing chores, and live a healthier life. By learning how our muscles and bones work, we can become smarter, more efficient, and safer in all our physical activities.
This section breaks down the core scientific principles needed to understand how our bodies move. Concept 1: What are Anatomy and Physiology? Anatomy: This is the study of the body's structure. It's like looking at a map of the body. It answers the question, "What are the parts and where are they located?" *Example:* Stating that the femur is the long bone in the thigh, or that the biceps brachii is the muscle at the front of the upper arm. Physiology: This is the study of the body's function. It explains how the parts work together. It answers the question, "How do these parts do their job?" *Example:* Explaining how the biceps brachii muscle contracts (gets shorter) to pull on the forearm bones (radius and ulna) and bend the elbow.
Simple Analogy: Think of a bicycle. Its anatomy is the frame, wheels, chain, and pedals. Its physiology is how pressing the pedals turns the chain, which spins the back wheel and moves the bicycle forward. In the body, anatomy is the parts; physiology is the action. Concept 2: The Musculoskeletal System - Our Movement Machine
Our ability to move is primarily due to the musculoskeletal system, which includes bones, joints, and muscles.
A. The Skeletal System's Role in Movement