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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
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.
Exercise 9: Renal System Physiology: Activity 6: The Effect of Hormones on Urine Formation Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Which of the following has a role in altering the urine volume and concentration? You correctly answered: d. all of these 2. The total solute concentration surrounding the t
Physioex 9.0 Exercise 10 pre and post quizzes Activity 1
Exercise 10: Acid-Base Balance: Activity 1: Hyperventilation Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The fastest compensatory mechanism for maintaining pH homeostasis in the human body is You correctly answered: c. the chemical buffering system. 2. An increase in hydrogen ion concentration would Yo
Physioex 9.0 Exercise 10 pre and post quizzes Activity 4
Exercise 10: Acid-Base Balance: Activity 4: Respiratory Responses to Metabolic Acidosis and Metabolic Alkalosis Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. An increase in metabolic rate (without compensation) would result in You correctly answered: a. more carbon dioxide in the blood. 2. Excessive vomi
PhysioEx 9.0: Exercise 8, Activity 3 (Pre- and post-quizes)
Pre-lab Quiz Results
1. Where in the body does protein digestion begin? You correctly answered: b. the stomach 2. The substrate for pepsin is You correctly answered: d. protein and peptides. 3. In this activity the substrate you will be using to detect protein digestion is You correctly answered: d. BAPNA. 4. Negative results with the negativ
Physioex 9.0 Exercise 7 pre and post quizzes Activity 1
Exercise 7: Respiratory System Mechanics: Activity 1: Measuring Respiratory Volumes and Calculating Capacities Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Which of the following statements describing the mechanics of breathing is false? You correctly answered: d. Ventilation relies exclusively on contractin
Physioex 9.0 Exercise 7 pre and post quizzes Activity 2
Exercise 7: Respiratory System Mechanics: Activity 2: Comparative Spirometry Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. A normal resting tidal volume is expected to be around You correctly answered: d. 500 ml. 2. Which respiratory process is impaired the most by emphysema? You correctly answered: c. e
Physioex 9.0 Exercise 3 pre and post quizzes Activity 2
Exercise 3: Neurophysiology of Nerve Impulses: Activity 2: Receptor Potential Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Assuming that the resting potential of a sensory neuron is -70 mV, which of the following represents a depolarization? You correctly answered: c. a change to -60 mV 2. Which of the follo
Physioex 9.0 Exercise 3 pre and post quizzes Activity 6
Exercise 3: Neurophysiology of Nerve Impulses: Activity 6: The Action Potential: Coding for Stimulus Intensity Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The time after an action potential when a second action potential cannot be generated no matter how intense the stimulus is called the You correctly answ
Physioex 9.0 Exercise 3 pre and post quizzes Activity 7
Exercise 3: Neurophysiology of Nerve Impulses: Activity 7: The Action Potential: Conduction Velocity Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. An action potential can be propagated along an axon because there are __________ channels in the membrane. You correctly answered: d. voltage-gated 2. The units of
Physioex 9.0 Exercise 3 pre and post quizzes Activity 8
Exercise 3: Neurophysiology of Nerve Impulses: Activity 8: Chemical Synaptic Transmission and Neurotransmitter Release Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. The end of the axon where it contacts a target is called the You correctly answered: c. axon terminal. 2. Neurotransmitter is released into
PhysioEx 9.0: Exercise 3 - Pre and post quizzes (Activity 9)
Exercise 3: Neurophysiology of Nerve Impulses: Activity 9: The Action Potential: Putting It All Together Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Sensory neurons respond to an appropriate sensory stimulus with a change in membrane potential that is You correctly answered: b. graded with the stimulus intensity
Physioex 9.0 Exercise 4 pre and post quizzes Activity 2
Exercise 4: Endocrine System Physiology: Activity 2: Plasma Glucose, Insulin, and Diabetes Mellitus Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Which of the following statements is false? You correctly answered: d. Insulin is a hormone secreted into the stomach to aid with starch digestion. 2. Which of the
PhysioEx 9.0 - Exercise 4 (Pre- and post- quizzes) Activity-3
Exercise 4: Endocrine System Physiology: Activity 3: Hormone Replacement Therapy Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Follicle-stimulating hormone (FSH) You correctly answered: d. stimulates ovarian follicle development. 2. Estrogen You correctly answered: d. is produced by developing ovarian fo
Physioex 9.0 Exercise 5 pre and post quizzes Activity 1
Exercise 5: Cardiovascular Dynamics: Activity 1: Studying the Effect of Blood Vessel Radius on Blood Flow Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Blood flow is measured in You correctly answered: b. ml/min. 2. Which of the following has the greatest effect on blood flow? You correctly answered
Physioex 9.0 Exercise 5 pre and post quizzes Activity 3
Exercise 5: Cardiovascular Dynamics: Activity 3: Studying the Effect of Blood Vessel Length on Blood Flow Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. When the length of the blood vessel increases, which of the following also increases? You correctly answered: d. both friction and surface area 2. Blood
Physioex 9.0 Exercise 5 pre and post quizzes Activity 5
Exercise 5: Cardiovascular Dynamics: Activity 5: Studying the Effect of Blood Vessel Radius on Pump Activity Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. The heart is resting during You correctly answered: c. ventricular diastole. 2. The right side of the heart pumps blood You correctly answered: d. to
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.
Patient X has a kidney stone, pain in his shin bones, muscle weakness, symptoms of depression and abdominal pain (broken bones, kidney stones, abdominal groans and psychic moans). His blood calcium levels are elevated (hypercalcemia).
Alkalosis and Potassium Secretion, What is the mechanism of events?
Hello everyone. I've been trying to understand the action of principal cells in the kidney collecting ducts in alkalosis. My professor told me that the activity of proton-potassium pumps in the basolateral membrane lead to high potassium concentrations in the principal cell and therefore lead to higher potassium secretion to the lumen. The confusing thing is, if the plasma has
