chapter 13 : muscular system

What gives skeletal muscle its striated appearance? alignment of Z-bands arrangement of muscle fibers arrangement of myofilaments dark bands of mitochondra-rich tissue

arrangement of myofilaments

Bursae are typically located? within glands. between tendons and bones. within muscles. between ligaments and bones.

between tendons and bones.

The muscular system is made up of? a. all the muscles, ligaments, and tendons. b. all the voluntarily-controlled muscles. c. all the muscles. d. all the muscles plus the nerves attached to them.

c. all the muscles

Which type of muscle tissue is located in the walls of blood vessels and hollow internal organs? a. cardiac b. muscular. c. smooth

c. smooth

Select the three types of human muscle tissue. cardiac skeletal rough digestive smooth

cardiac skeletal smooth

Match each type of muscle with the correct description of its structure.

cardiac - has intercalated disks; generally uninucleated skeletal - cells are multinucleated; fibers run the length of the muscle smooth - cells are spindle-shaped, each with a single nucleus

What is the principle purpose of the muscular system? create movement defend the body control movement frame the body

create movement

Match each term related to the organization of a skeletal muscle with its correct description.

fascicle - a bundle of skeletal muscle fibers fascia - connective tissue that surrounds the bundles of muscle fibers tendon - attaches muscle to bone

What is the name for the bundles of skeletal muscle fibers in a whole muscle? fascia tendons bursa fascicles

fascicles

Select all correct descriptions of smooth muscle. fibers are uninucleated cells are spindle-shaped fibers are striated contains intercalated disks contraction is involuntary

fibers are uninucleated cells are spindle-shaped contraction is involuntary

What are bursae? the attachment point between muscle and bone tissue that surrounds skeletal muscle fluid-filled sacs between tendon and bone cushions within skeletal muscles

fluid-filled sacs between tendon and bone

As members of the class of animals called vertebrates, humans have which characteristics? -jointed appendages -open circulatory system -internal vertebral column -cells have cell walls -skeleton

jointed appendages internal vertebral column skeleton

The cells that make up muscle tissue are called ________

myocytes

The ______ of a muscle is on a stationary bone, and the ____ of a muscle is on a bone that moves.

origin ( and ) insertion

The plasma membrane of a muscle fiber is called the _________. sarcoplasmic reticulum sarcoplasm sarcolemma

sarcolemma

Select all of the following that are components of a muscle fiber. sarcoplasm T tubule myelin sheath axon terminal sarcolemma

sarcoplasm T tubule sarcolemma

Which of the following stores calcium within a muscle fiber? transverse tubule sarcoplasmic reticulum sarcolemma myofibril

sarcoplasmic reticulum

The three types of muscle tissue are cardiac, skeletal, and ___________

smooth

Which type of muscle tissue contains fibers that are uninucleated and nonstriated? skeletal cardiac smooth

smooth

Select all of the body parts that contain smooth muscle. stomach biceps colon ankle heart

stomach colon

Select all of the functions of skeletal muscle. hormone secretion support maintenance of constant body temperature blood cell production movement

support maintenance of constant body temperature movement

Match the function of skeletal muscles with the best description of how that function is provided.

support - contractions opposing force of gravity bone movement - contractions to make internal forces temperature - breakdown of ATP fluid movement - maintaining internal pressure protection - location of muscles

Fascia is a type of connective tissue that surrounds the muscle. What is it called when it extends beyond the muscle? ligament fascicle tendon bursa

tendon

The origin of a muscle is the point of its attachment: to a bone that moves. on the bone that pushes the muscle. on the bone that is secured with only one tendon. to a stationary bone.

to a stationary bone.

Humans belong to which class of animals? vertebrates invertebrates

vertebrates