Each germ layer develops into specific structures. The nervous system develops from the _______
Fill in the blank(s) with the appropriate word(s).
ectoderm
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The ________ is a narrow, elongated muscle that is deep to both the trapezius and sternocleidomastoid muscles. It attaches superiorly with multiple heads on the transverse processes of the cervical vertebrae and attaches inferiorly on the superior angle of the scapula.
A. serratus anterior B. rhomboid major C. subclavius D. levator scapulae E. rhomboid minor
The ________ is an important ridge of muscle extending horizontally around the right ventricle from the interventricular septum to the base of the anterior papillary muscle containing part of the conducting system
A) auricle B) pectinate muscle C) trabeculae carneae D) moderator band E) conus arteriosus
A fatty acid that contains only single covalent bonds in its carbon chain is said to be
A) saturated. B) polyunsaturated. C) monounsaturated. D) hydrogenated. E) carboxylated.
At rest, active sites on the actin are blocked by
A) Myosin molecules. B) Troponin molecules. C) Tropomyosin molecules. D) Calcium ions. E) ATP molecules