The __________ performs the work of the heart.
A. fibrous skeleton
B. pericardial cavity
C. endocardium
D. myocardium
E. epicardium
D. myocardium
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Which of the following statements is true regarding the visual projection pathway? Check all that apply.
A) Light striking the medial retina of the right eye is perceived by the left visual cortex B) Light striking the lateral retina of the left eye is perceived by the ipsilateral visual cortex. C) The left optic tract consists of nerve fibers from both eyes. D) All of the above.
A decrease in the oxygen-carrying ability of the blood, for any reason, is a condition known as ________
A) polycythemia B) leukemia C) anemia D) leukocytosis
A myofilament is the
A. cell membrane of a muscle fiber. B. cytoplasm of muscle cells. C. structural and functional unit of the skeletal muscle cell. D. contractile thread that extends the length of the muscle fiber. E. protein strand composed of actin or myosin.
________ burns involve the epidermis, all of the dermis, and often some deeper tissue
A) Third-degree B) Partial-thickness C) Second-degree D) First-degree E) Malignant