PhysioEx 9.0 is a laboratory simulation software that allows students to perform virtual experiments and activities related to physiology. Exercise 4, Activity 3 specifically deals with studying the effect of adrenaline on heart rate.
In this activity, students are asked to observe the effects of adrenaline on the heart rate of a frog. The experimental setup consists of a frog heart that is connected to a force transducer and a computer. The computer records the changes in the heart rate in response to the injection of adrenaline.
The results of the experiment show that adrenaline has a stimulatory effect on the heart rate of the frog. Upon injection of adrenaline, the heart rate increases significantly and then returns to its baseline value after a few minutes. This demonstrates the role of adrenaline as a hormone that helps to increase heart rate in response to stress or physical activity.
One of the key learning objectives of this activity is to understand the role of hormones in regulating physiological processes in the body. Adrenaline is a hormone that is released by the adrenal gland in response to stress or physical activity. It acts on the heart and other organs to increase their activity, which helps the body to respond to the demand for increased energy.
Another important learning objective of this activity is to understand the relationship between the concentration of hormones and their physiological effects. The results of the experiment show that the higher the concentration of adrenaline, the greater the increase in heart rate. This demonstrates the dose-response relationship between hormones and their physiological effects.
In conclusion, Exercise 4, Activity 3 in PhysioEx 9.0 is a valuable learning tool for students studying physiology. It allows them to understand the role of hormones in regulating physiological processes and the relationship between hormone concentration and physiological effects.
Physio Ex Exercise 9 Activity 4
Your answer: The urine volume will decrease and the concentration will increase. This depolarization would occur if neurons were damaged. The conduction velocity in the B fiber will be slower because the B fiber has a smaller diameter and less myelination. Record this maximal voltage here: Free Action potential Axon Neuron Physioex Exercise 2 Lab and Review Sheet Activity 2 Exercise 2: Skeletal Muscle Physiology: Activity 2: The Effect of Stimulus Voltage on Skeletal Muscle Contraction Lab Report Pre-lab Quiz 1. How does this tracing compare to the one that was generated at the threshold voltage? When the stimulus intensity is increased, what changes: the number of synaptic vesicles released or the amount of neurotransmitter per vesicle? You correctly answered: the bottom of the loop of Henle. Human Physiology Laboratory Biol 3120 Pex 09 04 Physio Ex 9 1 Physiology This Or That Questions University Of Houston Title: Human Physiology Laboratory Biol 3120 Pex 09 04 Physio Ex 9 1 Physiology This Or That Questions University Of Houston Format: eBook Number of Pages: 158 pages Physioex 9. Predict Question 3: What do you think will happen after you inject TSH into the three rats? Correct answer: less negative than the resting membrane potential.
From what you have just learned about generating an action potential, what effect would this have on nearby axons? The experiment produced this result. Na+ and K+ both have a relative permeability of 0 voltage outside a resting neuron and a relative negative permeability Premium Action potential Exercise 2 Physioex Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 20% by answering 1 out of 5 questions correctly. What happened to the amount of neurotransmitter release when you switched from the extracellular fluid with no Ca2+ to the extracellular fluid with low Ca2+? Its the level of stimulation needed to trigger a neural impulse. Explain the effect of increasing the right flow tube radius on the flow rate, resistance, and pump rate. Human Physiology Laboratory Biol 3120 Pex 09 04 Physio Ex 9 1 Physiology This Or That Questions University Of Houston Title: Human Physiology Laboratory Biol 3120 Pex 09 04 Physio Ex 9 1 Physiology This Or That Questions University Of Houston Format: ePub Book Number of Pages: 218 pages Physioex 9. Just a flat line. Your answer : b.
What do you think will happen after you inject PTU into the three rats? A policy that physioex. The normal rat will become hypothyroidic and develop a goiter. Your answer: The saline injections will not change the rat's vertebral bone density indicated by an unchanging T score. Normal rat … Activity 3: Hormone Replacement Therapy. How does this change correlate to changes in the nerve? Activity 5: Examining the Human Torso Model p.
When magnesium is added to the extracellular fluid it blocks the calcium channels and inhibits the release of neurotransmitter. How well did the results compare with your prediction? The neurotransmitter release was less when magnesium was added. Please make sure that your answers are typed in RED. Submit this completed document by the assignment due date found in the Syllabus. Predict Question 4: Propylthiouracil PTU is a drug that inhibits the production of thyroxine by blocking the attachment of iodine to tyrosine residues in the follicle cells of the thyroid gland iodinated tyrosines are linked together to form thyroxine.
For the thyroidectomized rats the hormones missing will be triiodothyronine and thyroxine. You correctly answered: in the collecting duct. The thyroidectomized Tx rat is You correctly answered: a. What reason can you give for the change? The normal rat is You correctly answered: b. Follicle-Stimulating Hormone FSH You Correctly … Data Analysis For Lab 4 Physioex Exercise 3 Neur Chegg Com Exercise 4 Endocrine … Answer Physiology Exercise 2: Activity 3 Flashcards Quizlet PhysioEx. There is no neurotransmitter release from the axon terminal when there are no calcium ions in the extracellular solution. If an animal has been hypophysectomized, what effect would you expect to see in the hormone levels in its body? Your answer : b.
Your answer: Intracellular and extracellular recordings of the action potential are equally difficult. You correctly answered: e. Your answer: The neurotransmitter release was less when magnesium was added. What happened to the amount of neurotransmitter release when you switched from the control extracellular fluid to the extracellular fluid with no Ca2+? There was little change in effect of increasing the voltage. You scored 100 by answering 4 out of 4 questions correctly. Now that you have calculated the oxygen consumption per hour for this rat, you can calculate the metabolic rate per kilogram of body weight with the following equation note that you need to convert the weight data from grams to kilograms to use this equation. Estrogen 7 0 7 0 -1.
GET Physioex 90 Exercise 4 Activity 3 Answers latest. My results went well compared to my prediction because I predicted that the resting membrane potential would become less negative. Calculate the oxygen consumption per hour for this rat using the following equation. Your answer: The action potential did not change this is because threshold is met. Na+ and K+ both have a relative permeability of 0 voltage outside a resting neuron and a relative negative permeability inside a resting neuron.
Submit this completed document by the assignment due date found in the Syllabus. Do you see any kind of response on the oscilloscope screen? How does the fact that the rats are ovariectomized explain their baseline T scores? Give one possible explanation for this. Review Sheet Results You correctly answered: water. Which of the following has the most negative voltage? Watch the BMR Measurement video. How well did the results compare with your prediction? Exercise 3: Neurophysiology of Nerve Impulses Worksheet Assignment Due: Week 4 Student instructions: Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. The extracellular Na+ did not alter the membrane potential in the resting neuron because the Na+ channels were mostly closed.