which muscle extends the elbow?
a) biceps brachii
b) triceps brachii
c) brachialis
d) brachioradialis
b) triceps brachii
Anatomy & Physiology
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In which of the following would the motor units have the fewest muscle fibers?
A) muscles of the neck B) postural muscles of the back C) muscles that control the eyes D) thigh muscles E) calf muscles
Anatomy & Physiology
Hyperventilation leads to all of the following EXCEPT ________
A) brief periods of apnea B) cyanosis C) dizziness D) fainting E) buildup of carbon dioxide in the blood
Anatomy & Physiology
Blood volume represents about ________ percent of a person's body weight
A) 7 B) 15 C) 2 D) 25 E) 42
Anatomy & Physiology
Which ions are critical for the activation of some enzymes?
A) magnesium ions B) fluorine ions C) potassium ions D) chlorine ions
Anatomy & Physiology