Compare and contrast the three types of muscle tissue
What will be an ideal response?
Cardiac muscle is located in the heart, and it functions to pump blood to the lungs and to the body. This muscle is characterized by branching striated cells with a single nucleus and specialized junctions that facilitate the rapid spread of nerve impulses throughout the heart. Skeletal muscle usually attaches to a bone, and when this type of muscle contracts, it causes voluntary movement. There are multiple nuclei in skeletal muscle cells, and contractile proteins are arranged to form striations. Smooth muscle is involuntary and can be found in the walls of the blood vessels, airways, and digestive tract. Smooth muscle cells lack striations, and each cell has a single nucleus.
You might also like to view...
Congenital rubella syndrome usually occurs in the time frame of the
A. entire pregnancy. B. third trimester of pregnancy. C. second trimester of pregnancy. D. first trimester of pregnancy.
Fever
A. enhances bacterial growth. B. inhibits bacterial growth. C. speeds up the body's reactions. D. triggers complement. E. inhibits bacterial growth AND speeds up the body's reactions.
Which groups of plants have at least some members that possess tissues capable of transporting water and nutrients?
_____ spermatophytes. _____ lycophytes. _____ bryophytes. _____ tracheophytes. _____ embryophytes.
Lipopolysaccharide (LPS) in the outer membrane of Gram-negative bacterial cells is an example of
A) An endotoxin B) An exotoxin C) A cytokine D) An endonuclease