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The cells of muscles, myocytes, develop from
________.
a. myoblasts
b. endoderm
c. fibrocytes
d. chondrocytes
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- The bundle of dense regular connective tissue that attaches a skeletal muscle to bone is called a(n) a. tendon. b. ligament. c. endomysium. d. fascicle.a. Three kinds of muscle cells- cardiac, smooth and skeletal- differences between their anatomy? Remember that skeletal muscle fibers are a fusion of many cells b. Why are “muscles” like biceps and pecs called “organs”?In an examination of a sample of muscle tissue, you notice that thesample consists of striated cells with multiple nuclei in each cell.This suggests that the sample is from which of the following typesof muscle?a. cardiac c. skeletalb. smooth d. Both b and c are correct.
- Skeletal, smooth, and cardiac muscle are similar in that they all _____. A are divided into motor units B require calcium in order to contract C undergo mitosis frequently to replace dead or damaged cells D have small round cells connected by gap junctionsWhich of the following characteristics does not apply to skeletal muscle tissue? a. striated b. voluntary c. multinucleated d. spindle shaped cells e. All of the above are correctCardiac muscles differ from skeletal muscles in thatthey ________.a. are striatedb. utilize aerobic metabolism c. contain myofibrilsd. contain intercalated discs
- 1. Henry was extremely scared from an exposure to a scary haunted experience. Thus, the constant “goose bumps” in the skin. This is a manifestation of what muscle tissue? a. cardiac b. skeletal c. smooth d. irregular 2. Neurons transmit information in the form of action potentials. Regarding neurons, which does NOT belong? a. cell body b. dendrites c. microvilli d. axonsStraps of dense, regular connective tissue______ . a. connect muscles to bones c. underlie the skin b. produce blood cells d. lack fibroblastsWhich of the following changes takes place when a skeletal muscle contracts?A. Z discs move farther apart.B. Actin filaments contract.C. Myosin filaments contract.D. Sarcomeres become shorter.
- From which embryonic cell type does muscle tissuedevelop?a. ganglion cellsb. myotube cellsc. myoblast cellsd. satellite cellsAll of the following characteristics apply to skeletal muscle except a. They are striated. b. They are multinucleated. c. They are voluntary. d. They contain intercalated discs. e. They are attached to the skeleton by means of tendons.Single-unit smooth muscle cells can stimulate each other because they havea. a latch-bridge.b. diffuse junctions.c. gap junctions.d. tight junctions.e. cross-bridges.
