In a ________ muscle, the fascicles are concentrically arranged around an opening
A) convergent
B) parallel
C) straight
D) pennate
E) circular
Answer: E
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A patient swears they make sure they eat plenty of foods rich in vitamin B12, but they still suffer from the anemia, jaundice, and weakness associated with vitamin B12 deficiency. Their doctor thinks their body might not be producing ________, which is necessary for vitamin B12 absorption.
Fill in the blank(s) with the appropriate word(s).
Although other nutrients can feed into the citric acid cycle, ________ yields energy the quickest
A) glycogen B) glucose C) protein D) fat E) an amino acid
Bronchial arteries carry _________ blood to the tissues of the lung
A. oxygenated B. deoxygenated
Differentiate graded potentials and action potentials. Select all that apply.
a. Summation of graded potentials can not occur but summation of action potentials are possible. b. Graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude. c. The magnitude of graded potentials is variable and action potentials are all-or-none.