BIO201 Lab 9

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Glendale Community College *

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201

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Biology

Date

Jan 9, 2024

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11

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Lab 9 The Endocrine System BIO201L Student Name: Click here to enter text. Access Code (located on the lid of your lab kit): Click here to enter text. Lab Report Format Expectations Utilize college level grammar and professional formatting when completing this worksheet. Submissions without proper formatting, all required photos or sufficient responses will be rejected. Pre- lab Questions 1. What is the function of the endocrine system? Click here to enter text. 2. Research two types of hormones and describe the mode of action for each. Click here to enter text. 3. Which gland is both endocrine and exocrine? Click here to enter text. 4. Which hormones control the fight or flight response? Click here to enter text. 5. What is type 1 diabetes and what is the treatment for this disease? Click here to enter text. 6. Describe how Ca 2+ levels in the blood are regulated by hormones. Click here to enter text. 7. How do the nervous and endocrine systems work together to maintain homeostasis of the body? Click here to enter text.
Lab 9 The Endocrine System BIO201L EXPERIMENT 1: MICROSCOPIC ANATOMY OF THE ENDOCRINE SYSTEM Introduction Questions 1. Define what a hormone is. Click here to enter text. 2. How do hormones establish selectivity? Click here to enter text. 3. Explain how insulin regulates glucose levels in the blood. Click here to enter text.
Lab 9 The Endocrine System BIO201L Data and Observations Table 1: Experiment 1 Image Observations Image Type Image Observations Thyroid Gland Input Parathyroid Gland Input Pancreas Input Adrenal Gland Input Pituitary Gland Input Anterior Pituitary Gland Input
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Lab 9 The Endocrine System BIO201L 1. Label the items in the following slide images based on your observations. A. Click here to enter text. B. Click here to enter text.
Lab 9 The Endocrine System BIO201L 2. Identify the indicated components in the slide image below. A. Click here to enter text.
Lab 9 The Endocrine System BIO201L 3. Identify the indicated components in the slide image below. A. Click here to enter text. EXPERIMENT 2: STRESS RESPONSE Introduction 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. Click here to enter text. 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. Click here to enter text. Data and Observations Table 2: Effect of Temperature on Blood Pressure and Heart Rate
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Lab 9 The Endocrine System BIO201L Time Heart Rate (beats/minute) Blood Pressure (mmHg; systolic/diastolic) Initial - Normal Temperature Input Input 30 Seconds in Ice Water Input Input 60 Seconds in Ice Water Input Input 90 Seconds in Ice Water Input Input 120 Seconds in Ice Water Input Input Final - Dry Input Input Table 3: Effect of Posture on Blood Pressure and Heart Rate Time Heart Rate (beats/minute) Blood Pressure (mmHg) Initial - Sitting Input Input Initial – Standing Input Input 1 Minute Standing Input Input 2 Minutes Standing Input Input Final - 2 minutes Sitting Input Input Results and Discussion 1. 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. Click here to enter text.
Lab 9 The Endocrine System BIO201L 2. Which glands are most likely to be involved with the physiological response caused in this experiment? Which hormones are most likely to be involved? Click here to enter text. 3. How does this experiment demonstrate the “fight or flight” response? Click here to enter text.
Lab 9 The Endocrine System BIO201L EXPERIMENT 3: FETAL PIG DISSECTION - ENDOCRINE SYSTEM Introduction Questions 1. Describe the techniques utilized while dissecting the outer muscle layers of your pig. ( Hint : Your response should be 3-5 sentences in length.) Click here to enter text.
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Lab 9 The Endocrine System BIO201L Data and Observations Insert a high resolution photo of the dissected fetal pig you observed, in the dissection tray, with the pancreas exposed. Your handwritten name and access code must be clearly visible in the background. Photos that are of too low resolution, that appear inauthentic, that appear edited, or that do not show the eye, dissection tray and a clearly written name and access code will be rejected. 1. What surprised you about the internal anatomy of the pig? Click here to enter text.
Lab 9 The Endocrine System BIO201L Results and Discussion 1. What is unique about the glands of the endocrine system? Click here to enter text. 2. Explain the function of the thyroid gland and the hormones it secretes. Include how the release of hormones is regulated and what cells the hormones act on. Click here to enter text.

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