Skeletal, Cardiac, and Smooth Muscles Answers

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Muscle cells group together to form structures called fasciamuscle fibers✔ myofibrils.

Cardiac muscle works much harder and longer without tiring than other muscles do. It can do that because it has a larger number of ✔ mitochondriafasciclestissues than other muscle cells.

Factors that can cause muscle growth to be slowed include ✔ ageexercisehormones, injury, or diseases.

Select the word that best completes each of the sentences below.Muscle cells are called ✔ myofibersmitochondriafascicles.

Select the word that best completes each of the sentences below.Groups of muscle cells that come together to form thick fibers are called ✔ fasciclesmitochondriamyofibers.

Select the word that best completes each of the sentences below.One of the muscles’ three primary functions in the body is to convert mitochondria✔ energyoxygen stored in the body.

Select the word or phrase that best completes each of the sentences below.Muscles are ✔ repairedweakeneddamaged and built up throughout life with new muscle tissue.

Skeletal muscle helps to move

The point where a muscle attaches to bone but the bone does not move much is called the

A word used to describe the way cardiac muscle moves is

Select the body parts that are made up in part of smooth muscle. Check all that apply.

In the body, the types of drugs known as steroids act in a way similar to

Protein in foods helps to build muscle. Foods that are high in protein include which of the following? Check all that apply.

The main substances involved in muscle movement are proteins called actin and nucleus✔ myosinmitochondria.

Each skeletal muscle can only move in one direction. As a result, most skeletal muscles are paired to the bones in joints✔ setstendons.

Muscular dystrophy✔ Muscle atrophyMuscle building is when muscles break down, either because the muscles are not being used or because of disease.

Examples of skeletal muscles include

The point where the muscle attaches to bone that moves the most is called the

Cardiac muscle gets its directions from a sophisticated system of