A&p lab
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Lab 9 The Endocrine System BIO201L
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Pre-Lab Questions
”1. What is the function of the endocrine system?”
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”2. Research two types of hormones and describe the mode of action for each. ”
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”3. Which gland is both endocrine and exocrine? ”
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”4. Which hormones control the fight or flight response? ”
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”5. What is type 1 diabetes and what is the treatment for this disease? ”
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”6. Describe how Ca2+ levels in the blood are regulated by hormones. ”
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”7. How do the nervous and endocrine systems work together to maintain homeostasis of the body? ”
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Experiment 1: Microscopic Anatomy of the Endocrine System
Table 2: Experiment 1 Image Observations
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Image Type |
Image Observations |
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Thyroid Gland |
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Parathyroid Gland |
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Pancreas |
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Adrenal Gland |
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Pituitary Gland |
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Anterior Pituitary Gland |
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Post-Lab Questions
”1. Label the items in the following slide images based on your observations. ”
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2. Identify the indicated components in the slide image below.
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3. Identify the indicated components in the slide image below.
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”4. Define what a hormone is. ”
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”5. How do hormones establish selectivity? ”
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”6. Explain how insulin regulates glucose levels in the blood. ”
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Experiment 2: Stress Response Table 3: Effect of Temperature on Blood Pressure and Heart Rate
Table 4: Effect of Posture on Blood Pressure and Heart Rate
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Post-Lab Questions
”1. Write your hypothesis for the “Testing Temperature” portion of this experiment. Be sure to include how you think the decreased temperature will affect blood pressure and heart rate, and, why. ”
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”2. Write your hypothesis for the “Testing Body Position” portion of this experiment. Be sure to include how you think blood pressure and heart rate will vary when you sit versus when you stand. ”
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”3. Explain your results in terms of the endocrine system. Indicate how the endocrine system is involved in the physiological response to temperature and body position. ”
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”4. Which glands are most likely to be involved with the physiological response caused in this experiment? Which hormones are most likely to be involved? ”
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”5. How does this experiment demonstrate the “fight or flight” response? ”
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Experiment 3: Fetal Pig Dissection – Endocrine System
Post-Lab Questions
”1. Describe the techniques utilized while dissecting the outer muscle layers of your pig. ”
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”2. What surprised you about the internal anatomy of the pig? ”
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”3. What is unique about the glands of the endocrine system? ”
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”4. Explain the function of the thyroid gland and the hormones it secretes. Include how the release of hormone is regulated and what cells the hormone act on. ”
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”Insert photo of your pig’s exposed pancreas with your name and access code handwritten clearly in the background: ”
