Myocardium (cardiac muscle tissue) must rhythmically contract for a lifetime. This requires a considerable amount of energy production by the cells. You would expect to see a relatively high amount of which organelle in these cells?
A) cytoskeleton
B) smooth endoplasmic reticulum
C) mitochondria
D) lysosomes
C
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The heme group from the phagocytized erythrocyte is converted into a green pigment called ________________
Fill in the blank with correct word.
When air passes through the glottis, which structures vibrate to produce sound?
A. Cricohyoid folds B. Epiglottal cords C. Thyroid folds D. Ventricular folds E. Vocal folds (cords)
Where are the collateral (prevertebral) ganglia located?
A. Near arterial branches of the abdominal aorta B. Just lateral to the vertebral column C. In the walls of organs to be innervated D. In the brain E. Posterior to the vertebral column
The ability of CO2 to alter the affinity of hemoglobin for O2, which enhances O2 delivery to tissues and O2 uptake in the lungs, is referred to as:
A. chloride shift B. Haldane effect C. Bohr effect D. Hamburger phenomenon E. Graham's effect