____________________ is converted to ____________________ and then acts as an enzyme to activate fibrinogen
Fill in the blank(s) with correct word
Prothrombin, thrombin
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Which muscle would be most essential for blowing a trumpet?
A. Masseter B. Platysma C. Frontalis D. Zygomaticus major E. Buccinator
Which of the following is not associated with the frontal bone(s)?
A) malar flush B) glabella C) metopic suture D) supraorbital foramen E) roof of the orbit
Epinephrine increases the force of contraction of cardiac muscle by:
A. increasing the amount of Ca++ in the SR for release to the cytosol B. increasing the level of myosin light-chain phosphorylation C. inhibiting the ryanodine receptor D. increasing Ca++ extrusion through the sarcolemmal Ca++ pump E. shortening the duration of the action potential
Cardioinhibitory centers in the ________ receive input from ________.
A. medulla oblongata; chemoreceptors in the aortic arch B. thalamus; chemoreceptors in the medulla oblongata C. pons; baroreceptors in the internal carotid D. cortex; proprioceptors in the muscles E. hypothalamus; proprioceptors in the joints