1. Describe differences between peripheral and central fatigue (6 marks = 3 differences for each)

2. Describe the difference between high frequency and low-frequency fatigue ?(6 marks = 3 differences for each)

3. Describe the role of inorganic phosphate in muscle fatigue

1. On a normal ECG, a wave for atrial repolarization is not recorded. Why?

a. No repolarization of the atria occurs normally.

b. It occurs at the same time as ventricular depolarization and is masked by the QRS complex.

c. It is too small to be picked up by the recording electrodes.

2. If the duration of one cardiac cycle is 0.71 seconds, what is the heart rate?

(68.2 BPM-92.5 BPM-78 BPM-84.5 BPM)

3. Pick the answer which best explains the lag time between the start of QRS and the start of the thumb pulse.

a. It is the time the blood takes to reach the thumb.

b. It is the time it takes for the ventricles to empty and the blood to reach the thumb.

c. It is the time which includes the duration of QRS, the contraction of the ventricles and the time it takes the blood to reach the thumb.

Participate (Post a New Message of at least 150 words.) by Day 5 in your assigned Discussion Group on each of the following topics:

What advice would you give to a senior that wants your help with learning how to snack healthier?

How would your FEV₁/FVC ratio be affected if your lips were not sealed on the mouthpiece during a test?

1) What is the molecular basis of the Long Q-T syndrome disease? (What is abnormal at the cellular, biochemical, or molecular level?

2) What is the genetic basis of Long Q-T syndrome?

The Stages of Infection are ______. Select one: a. Incubation followed by Prodromal followed by Clinical b. Incubation followed by Decline followed by Clinical c. Decline followed by Prodromal followed by Clinical d. Clinical followed by Prodromal followed by Incubation

1. A patient with deep vein thrombosis in his leg comes into the emergency room because the clot in his leg has broken free. To the dismay of the doctor, the clot, which began in the great saphenous vein of the leg, has now lodged in his kidneys. At first, the doctor is baffled as to how that could happen. However, looking at the patient’s medical records, she discovers that the patient has a history of heart problems. Specifically, the patient has suffered from valvular stenosis of the atrioventricular valves, as well as a foramen ovale that did not close completely at birth.
   1. Why was the doctor initially surprised to find the clot in the kidneys? What organ did she expect it to be in? (1 point)

2. Only one of the two heart conditions listed could explain how the clot got to the kidneys. Which one? (1 point)

3. Trace the path of the clot from the great saphenous vein to the interlobar artery of the kidney in detail, naming all the blood vessels/heart chambers along the way. You may find the last section of Chapter 20 helpful here. (7 points)

Messages are transmitted from one neuron to another via the synapse process. IN YOUR OWN WORDS: Define neurotransmitter, the four main categories, and their role in cell communication. Discuss one of the following synapse types: excitatory cholinergic, inhibitory GABA-ergic, or excitatory adrenergic.

The primary goal of the intrinsic renal GFR regulatory mechanisms is to maintain a constant GFR of 125ml/min.

. What differences do you see between the tendon and ligament images?