43 Cardiovascular and Respiratory Systems Lab
Lab Objectives
- State the parts of the cardiovascular and respiratory systems and give the functions of each part.
- Identify the parts of the cardiovascular and respiratory systems on the human torso model and other models.
- Explain how the respiratory and cardiovascular systems are interrelated.
- Describe the path of the blood through the heart
- Test the effects of various factors on heart rate and breathing rates
- Measure various respiratory volumes using a spirometer.
- Define the following terms:
nostrils trachea spirometer nasopharynx bronchi pleura pharynx larynx forced vital capacity epiglottis lung vital capacity diaphragm glottis forced expiratory volume intercostal muscles aorta brachial artery and vein superior vena cava ventricle hepatic artery and vein inferior vena cava atrium renal artery and vein iliac artery and vein pulmonary artery and vein jugular vein systole diastole coronary artery and vein carotid artery systole
Download a PDF of the lab to print.
Activity I: Identifying Structures
Find the following structures on the human torso model and other models.
- Nostrils
- Trachea
- Nasal cavity
- Oral cavity
- Bronchi
- Diaphragm
- Pharynx
- Pleura
- Larynx
- Lung
- Epiglottis
- Intercostal muscles
- Glottis
- Iliac artery and vein
- Carotid arteries
- Jugular veins
- Right and left ventricle
- Right and left atria
- Pulmonary artery and vein
- Brachial artery and vein
- Coronary artery and vein
- Renal artery and vein
- Hepatic artery and vein
- Femoral artery and vein
- Superior and inferior vena cava
Use the chart on the next page to help organize your understanding of the different arteries and veins. For each one listed, state where the blood is traveling to and from.
| Artery or Vein | Where blood is traveling to and from |
| Pulmonary Artery | |
| Pulmonary Vein | |
| Coronary Artery | |
| Coronary Vein | |
| Hepatic Artery | |
| Hepatic Vein | |
| Iliac Artery | |
| Iliac Vein | |
| Jugular Vein | |
| Carotid Artery | |
| Brachial Artery | |
| Brachial Vein | |
| Femoral Artery | |
| Femoral Vein | |
| Renal Artery | |
| Renal Vein |
Use the heart picture below and label the different atria and ventricles. Also include the aorta, superior vena cava, and inferior vena cava.
Activity II: Respiratory Volumes and Lung Capacities
Spirometry is the classic pulmonary function test. A spirometer is an instrument used to measure how much air and how quickly air is expelled after a deep inhalation. The measurements can be used to calculate how efficiently and how quickly the lungs can be filled upon inspiration and emptied during expiration. The most common measurements obtained from a spirometer are listed in the table below.
| Abbreviation | Measurement | Description |
| VC | Vital Capacity | Maximal amount of air exhaled steadily from full inspiration to maximal expiration |
| FVC | Forced vital capacity | The total amount of air that you blow out in one breath |
| FEV1 | Forc