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Physioex 9.0 Exercise 5 pre and post quizzes Activity 6
Exercise 5: Cardiovascular Dynamics: Activity 6: Studying the Effect of Stroke Volume on Pump Activity Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Which of the following variables directly contributes to preload? You correctly answered: b. venous return 2. Which of the following would not increase end diast
PhysioEx 9.0: Exercise 5 (Activity 7) - Pre- and post-quizzes
Exercise 5: Cardiovascular Dynamics: Activity 7: Compensation in Pathological Cardiovascular Conditions Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Which of the following could cause an increase in peripheral resistance in the blood vessel? You correctly answered: b. atherosclerosis 2. Which structures in t
Physioex 9.0 Exercise 6 pre and post quizzes Activity 2
Exercise 6: Cardiovascular Physiology: Activity 2: Examining the Effect of Vagus Nerve Stimulation Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The effect of the parasympathetic nervous system on the heart is to You correctly answered: a. decrease the heart rate. 2. The branch of the autonomic nervous system
Physioex 9.0 Exercise 6 pre and post quizzes Activity 4
Exercise 6: Cardiovascular Physiology: Activity 4: Examining the Effects of Chemical Modifiers on Heart Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The parasympathetic nervous system releases __________ to affect heart rate. You correctly answered: d. acetylcholine 2. A cholinergic drug that worked the
Physioex 9.0 Exercise 6 pre and post quizzes Activity 5
Exercise 6: Cardiovascular Physiology: Activity 5: Examining the Effects of Various Ions on Heart Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Which organelle in the cardiac muscle cell stores calcium? You correctly answered: b. sarcoplasmic reticulum 2. Verapamil is a calcium-channel blocker. Its effec
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 1
Experiment Results Predict Question: Predict Question: Predict what will happen to the resting membrane potential if the extracellular K+ concentration is increased. Your answer : b. The resting membrane potential will become less negative.
Stop & Think Questions: What is the polarity of the resting membrane potential (voltage)? You corre
Physioex 9.0 Exercise Predict/Stop and Think Questions Activity 2
Experiment Results Predict Question: Predict Question 1: The adequate stimulus for a Pacinian corpuscle is pressure or vibration on the skin. Which of the following modalities will induce the largest amplitude receptor potential in the Pacinian corpuscle Your answer : c. moderate-intensity pressure
Predict Question 2: The adequate stimuli for olfactory
Predict Question: How will the action potential at R1 (or R2) change as you continue to increase the
Experiment Results Predict Question: Predict Question: How will the action potential at R1 (or R2) change as you continue to increase the stimulus voltage? Your answer : c. The action potential will not change.
Stop & Think Questions: Why is the action potential recorded by the second recording electrode (R2) delayed relative to the action potentia
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 4
Experiment Results Predict Question: Predict Question 1: If you apply TTX between recording electrodes R1 and R2, what effect will the TTX have on the action potentials at R1 and R2? Your answer : c. TTX will block the response at R2 but have no effect at R1.
Predict Question 2: If you apply lidocaine between recording electrodes R1 and R2, what effect
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 5
Experiment Results Predict Question: Predict Question: If you further decrease the interval between the stimuli, will the threshold for the second action potential change? Your answer : c. The threshold for the second action potential will be higher (requiring a larger depolarization).
Stop & Think Questions: Threshold can be defined as the mi
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 6
Experiment Results Predict Question: Predict Question: What effect will the increased stimulus intensity have on the frequency of action potentials? Your answer : b. The frequency of action potentials will remain the same. Stop & Think Questions: 4. At the site of stimulation, the stimulus keeps the membrane of the axon at threshold for a long time, but
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 7
Experiment Results Predict Question: Predict Question 1: How will the conduction velocity in the B fiber compare with that in the A Fiber? Your answer : b. The conduction velocity in the B fiber will be slower because the B fiber has a smaller diameter and less myelination. Predict Question 2: How will the conduction velocity in the C fiber compare with that
Physioex 9.0 Exercise 3 Predict/Stop and Think Questions Activity 8
Experiment Results Predict Question: Predict Question 1: You have just observed that each action potential in a burst can trigger additional neurotransmitter release. If calcium ions are removed from the extracellular solution, what will happen to neurotransmitter release at the axon terminal? Your answer : c. There will be less neurotransmitter release.
Outline anatomical steps involved in reaching above your head to grab an apple.
In sequential fashion, outline the steps involved in reaching above your head to grab an apple from a branch. Include the roles of the special senses, central nervous system, peripheral nervous system, skin, muscles, and bones.
Which statement is true related to cardiac output?
Which statement is true related to cardiac output?
A slow heart rate would increases it with greater end diastolic volume, stroke volume and force of contraction Decreased venous return will result in increased end diastolic volume that would mean more blood leaving the heart. If a semilunar valve were partially blocked, the end systolic volume in th
