What protein primarily makes up the thick filament?
A. Troponin
B. Titin
C. Actin
D. Myosin
Answer: D
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One day, Julien is stung by a bee while he is outside and experiences anaphylaxis (a severe allergic reaction). His throat swells shut and he begins to suffocate. Luckily, a doctor finds Julien, recognizes that he cannot breathe, and decides to perform an emergency surgery that will allow him to breathe even though his throat is closed. The doctor performs a ________.
What will be an ideal response?
A megakaryoblast will develop into
a) a red blood cell. b) a white blood cell. c) a platelet. d) either a white blood cell or a platelet. e) none of these choices.
Teratogens are most damaging to organ systems if exposure to them occurs
A. early in pre-embryonic development. B. when the organ systems are undergoing peak development in the embryo. C. in the fetal period, after systems have formed but have not completed maturation.
Joseph is exasperated at the request of his teacher to recite the extrinsic muscles of the eye and their function and rolls his eyes in frustration. Which muscles did Joseph use to carry out this movement?
A. Medial rectus B. Inferior rectus C. Lateral rectus D. Inferior obliques