Question

(9/25/25) formative assessment assignment: chapter 6 the muscular system part 1 (suggested. 1 of 16 the muscular system because flexing muscles look like mice scurrying beneath the skin, a scientist long ago dubbed them muscles, from the latin word mus, meaning \little mouse\. indeed, the rippling muscles of professional athletes often come to mind when we hear the word muscle. but muscle is also the dominant tissue in the heart and in the walls of other hollow organs of the body such as the intestines and blood vessels, and it makes up nearly half the bodys mass. the essential function of muscle is to ( 1 ), or shorten—a unique characteristic that sets it apart from other body tissues. as a result of this ability, muscles are responsible for all body movements and can be viewed as the \machines\ of the body. overview of muscle tissue muscle types there are three types of muscle tissue—skeletal, smooth, and cardiac (table 6.1, p 182). these differ in their ( 2 ) structure, body location, and how they are stimulated to contract. but before we explore their differences, lets look at how they are similar first, skeletal and smooth muscle cells are elongated. for this reason, these types of muscle cells (but not cardiac muscle cells) are called ( 3 ) fibers. second, the ability of muscle to shorten, or contract, depends on two types of myofilaments, the muscle cell equivalents of the ( 4 ) of the cytoskeleton (studied in chapter 3). a third similarity has to do with terminology. whenever you see the prefixes myo - or mys - (\muscle\) or sarco - (\flesh\), you will know that muscle is being referred to. for example, in muscle cells, the ( 5 ) is called sarcoplasm (sarko-plaz*um) 1 contract 2 cell 3 muscle 4 microfilaments 5 cytoplasm 1 cell 2 muscle 3 microfilaments 4 cytoplasm 5 contract 1 muscle 2 microfilaments 3 cytoplasm 4 contract 5 cell 1 cytoplasm 2 contract 3 cell 4 muscle 5 microfilaments 1 microfilaments 2 cytoplasm 3 contract 4 cell 5 muscle

Explanation:

The essential function of muscle is to contract. Skeletal and smooth muscle cells are elongated and called muscle fibers. Muscle contraction depends on myofilaments, which are like the microfilaments of the cytoskeleton. The cytoplasm in muscle cells is called sarcoplasm. Based on these facts, we can match the terms.

Answer:

1. contract
2. cell
3. muscle
4. microfilaments
5. cytoplasm