In a normal heart, what is the average amount of blood that's left in the ventricle at the end of systole when ejection is complete?
a. 155 mL
b. 125 mL
c. 95 mL
d. 65 mL
e. 45 mL
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Question 2) Most researchers think nitric oxide is the retrograde messenger important in long-term potentiation.
Indicate whether the statement is true or false
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Question 3) The cardiac cycle consists of alternate periods of emptying and filling, also called:
a. systole and diastole
b. systemic and diastolic
c. resting and contracting
d. AV firing and SA firing
e. charging and discharging
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Question 4) The paired facial nerves are the longest cranial nerves and they innervate face muscles, salivary glands, and tear glands.
Indicate whether the statement is true or false
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Question 5) What are the three distinct waveforms called that are found in a normal ECG?
a. A wave, B wave, C wave
b. Q wave, R wave, S wave
c. Q wave, R complex, S wave
d. P wave, RST complex, Q wave
e. P wave, QRS complex, T wave
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Question 6) Depression is a psychiatric disorder associated with defects in basal nuclei neurotransmitters.
Indicate whether the statement is true or false
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Question 7) An electrocardiogram is usually abbreviated as ECG, but sometimes also as:
a. EC
b. EG
c. ECM
d. EKG
e. ELC
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Question 8) The limbic association cortex is involved with motivation and emotion.
Indicate whether the statement is true or false
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Question 9) In cardiac contractile cells, the L-type Ca2+ channels lie mostly in the:
a. sarcolemma
b. sarcoplasmic reticulum
c. transverse (T) tubules
d. outer membrane
e. pericardial sac
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Question 10) The withdrawal reflex for the arm requires an EPSP be generated on motor neurons that innervate the triceps muscle, and requires an IPSP be generated on neurons that innervate the biceps muscle.
Indicate whether the statement is true or false
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