SHS2 Biomedical Science · Semester 1 Week 12: Anatomy and Physiology

Lesson notes

Learning Objectives

Indicator: 2.2.1.LI.3: Describe the importance of technological tools in biomedical sciences to measure parameters associated with communication in the human body.

By the end of the lesson, learners can:

Define the electroencephalogram (EEG) and explain what electrical parameter of the brain it measures.
Identify and describe the four main types of brain waves (alpha, beta, theta, delta), their frequency ranges, and the states of consciousness they represent.
Match typical EEG patterns to clinical conditions such as seizures and explain the clinical significance of abnormal brain wave patterns.
Explain at least three ways technological tools like EEG, MRI, CT scan, and EMG help medical professionals assess whether communication pathways in the body are working correctly.
Interpret a sample EEG tracing to identify the dominant brain wave type and make a basic judgement about the patient’s state (awake, relaxed, asleep, or abnormal).

Sign in with your phone number to read the full note and download the GES plan - free.

Sign in with phone number

Curriculum details

Strand: Human Body Systems (Strand 2)
Sub-strand: Anatomy and Physiology (2.1)
Content standard: 2.2.1.CS.1 - Demonstrate an understanding of the interconnectedness of some body systems for communication. 2.2.1.LO.1 Identify the various regions the brain, describe their functions and their interconnectedness with some body systems for communication.
Indicator: 2.2.1.LI.3 - Describe the importance of technological tools in biomedical sciences to measure parameters associated with communication in the human body.
Suggested placement: Semester 1, Week 12 (Week 12 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 59

Exemplars (from the NaCCA curriculum)

Experiential/Digital Learning: Learners visit a hospital or watch a video to see how the electrical activity of the brain (electroencephalogram [EEG]) can be monitored using external electrodes. Learners note the differences in the frequency and amplitude of electrical patterns (brain waves) observed.
Collaborative Learning: Teacher leads a discussion on the types of brain waves (alpha, beta, theta and delta), their characteristics and the respective states of consciousness they represent. Discuss the EEG of clinical conditions with peculiar brain wave patterns such as seizure. Observe samples of EEG to identify and indicate the clinical significance of the brain waves.
Teaching and Learning Resources:
- Anatomical textbook
- Pictures
- Projector
- Anatomical models
- Charts Projector
- EEG recording facility
- Flip charts
Assessment (2.2.1.AS.3). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.