Which of the following factors would cause an increase in heart rate?
A. Increased production of atrial natriuretic factor
B. Stimulation of baroreceptors in the aorta
C. Increased epinephrine release from the adrenal medulla
D. Stimulation through the vagus nerve
E. Increased parasympathetic stimulation
Answer: C
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Rigor mortis occurs following death because
a. tropomyosin remains over the myosin binding sites of actin. b. myosin heads attach to actin and are not released due to lack of ATP. c. the myosin becomes misshapen. d. all of the Ca2+ remains within the sarcoplasmic reticulum.
Under normal conditions, glomerular filtration depends on three main pressures. From the list below, what are these three main pressures? 1. glomerular hydrostatic pressure 2. capsular hydrostatic pressure 3. capsular colloid osmotic pressure 4. blood colloid osmotic pressure 5. urinary bladder hydrostatic pressure
A) 1, 2, and 3 are correct. B) 2, 3, and 4 are correct. C) 3, 4, and 5 are correct. D) 1, 2, and 4 are correct. E) 2, 4, and 5 are correct.
The vertebra prominens is the spinous process of cervical vertebra number
A. 1. B. 3. C. 5. D. 4. E. 7.
For axial muscles, which is usually a muscle's less movable attachment?
A. The inferior attachment site B. The superior attachment site C. The distal attachment site D. The proximal attachment site