The thoracic cavity is part of which larger cavity?
A. Dorsal cavity
B. Abdominopelvic cavity
C. Anterior cavity
Answer: C
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In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus, esophagus, and trachea called the
A) pleural space. B) pericardial space. C) mediastinum. D) cardiac notch. E) ventral cavity.
The subsidence of an erection after ejaculation is known as
A) detumescence. B) tumescence. C) menses. D) emission. E) ejaculation.
The molecule used most frequently by cells as a fuel belongs to which of the following groups?
A. Steroids B. Prostaglandins C. Carbohydrates D. Nucleic acids E. Phospholipids
What would happen if there were no AChE in the synaptic cleft?
A) The motor end plate could not be stimulated and no muscle contraction could occur. B) The motor end plate could not be stimulated and continuous muscle contraction would occur. C) The motor end plate would be continuously stimulated and no muscle contraction could occur. D) The motor end plate would be continuously stimulated and continuous muscle contraction would occur. E) The motor end plate would be unaffected because epinephrine not ACh stimulates the contraction of skeletal muscles.