Here's an example of what's due today

Heart model and EKG

Tue, Apr 27, 2027 · Week 15 · Human Anatomy & Physiology (Human Body Systems)

Today's goal: Students will build a heart-flow model and record an EKG and pulse to relate structure to function.

Learn first

What a finished product looks like

This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.

Annotated EKG trace + vitals data table

Completes: Completes the structure-to-function lab target: an EKG trace with P, QRS, and T waves labeled and linked to cardiac cycle phases, plus a pulse and blood-pressure data table.

Wave labels and what each one means:

P wave: atrial depolarization, the signal that makes the atria contract.
QRS complex: ventricular depolarization, when the ventricles contract and pump (systole).
T wave: ventricular repolarization, when the ventricles reset and relax (diastole).

Link to the cardiac cycle: the QRS lines up with ventricular systole (pumping), and the period after the T wave lines up with diastole (filling). My heart model shows the one-way valves keeping blood from flowing backward during each beat.

Vitals I recorded: resting pulse 72 bpm, blood pressure 118/76 mmHg. Both are inside normal resting ranges.

EKG trace with a small P wave, a tall sharp QRS complex, and a rounded T wave labeled along a baseline.

Also due today: Submit your annotated EKG and data table to the Schoology assignment for HBS Cardio Day 3 (Lab).

Check yourself

WebXam problem for today's skill

One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.

WebXam-style domain: Evaluate Body SystemsSelf-check skill: Matching EKG waves to electrical events of the heartbeat

On an EKG trace, which feature represents ventricular depolarization, the electrical event that triggers the ventricles to contract and pump blood?

Tap an answer to see the full explanation. Nothing is recorded or graded.

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