Cardiac muscle fibers

A. are only loosely connected by the intercalated discs.
B. contract as a single unit.
C. have a low oxygen need.
D. utilize hemoglobin as an energy source.


Answer: B

Anatomy & Physiology

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Describe the structures and functions of the enteric nervous system

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Consider the following chart of laboratory test results of four patients:?Red Cell CountHemoglobinHematocritWhite Cell CountPlatelet CountPatient A10 million/mm320g64%7,000/mm3300,000/mm3Patient B4.8 million/mm315 g45%7,500/mm3150,000/mm3Patient C3.2 million/mm38.2g34%6,500/mm3350,000/mm3Patient D5.1 million/mm314.2g48%15,200/mm3300,000/mm3?Which of the patients has thrombocytopenia?

Fill in the blank(s) with the appropriate word(s).

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The internal os connects the uterine cavity to the

A) ovary. B) uterine tube. C) vagina. D) urethra. E) cervical canal.

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Insulin is a satiety signal that suppresses appetite, whereas glucagon stimulates appetite

Indicate whether the statement is true or false.

Anatomy & Physiology