An extended period of time between the P wave and the QRS complex may indicate which of the following?
A) The signal is traveling too quickly to the AV node.
B) Ventricular contraction is faster than usual.
C) The atria are not contracting.
D) The signal is taking too long to get to the AV node.
E) Ventricular contraction is taking longer than usual.
D
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A) sweating. B) the kidneys. C) the liver. D) the feces. E) buffers.
Which of the following is not a property of synovial joints?
A) freely movable B) reinforced by accessory structures C) covered by a serous membrane D) contain synovial fluid E) covered by a capsule
The heart muscle lies within a space in the thoracic cavity called the:
A. mediastinum. B. hemithorax. C. pericardium. D. endocardium.
What hormone does the anterior pituitary gland secrete?
A. Oxytocin B. Gonadotropin hormone C. Follicle-stimulating hormone D. Melatonin