Chapter 9 Vocab

Question 1

Fascia

Answer 1

sheet of dense connective tissue that encloses a muscle

Question 2

Tendon

Answer 2

cordlike mass of dense connective tissue that connects a muscle to a bone

Question 3

Aponeurosis

Answer 3

sheet of connective tissue that attaches muscle to bones and other muscle `

Question 4

Myofibrils

Answer 4

any of the threadlike bundles of filaments in striated muscle cells

Question 5

Sarcomere

Answer 5

structural and functional unit of a myofibril

Question 6

Myosin

Answer 6

protein that, with actin, forms the filaments that interact to contract muscle fibers

Question 7

Actin

Answer 7

proteins in muscle fibers that form thin filaments that slide between filaments of the protein myosin, shortening muscle fibers

Question 8

Sarcoplasmic Reticulum

Answer 8

membranous network of channels and tubules in a muscle fiber

Question 9

Transverse Tubule

Answer 9

membranous channel that extends deep into the cell from a muscle fiber membrane

Question 10

Cistenae

Answer 10

enlarged portion of the sarcoplasmic reticulum near the actin and myosin filaments of a muscle fiber

Question 11

Synapse

Answer 11

functional connection between the axon of one neuron and the dendrite or cell body of another neuron of the membrane of another cell type

Question 12

Neuromuscular Junction

Answer 12

synapse between a motor neuron and a skeletal muscle fiber; myoneural junction