Muscular/Skeletal System

Question 1

Cartilage

Answer 1

Type of connective tissue that is softer and more flexible than bone

Question 2

Chrondrocytes

Answer 2

Cells responsible for synthesizing cartilage

Question 3

Bone

Answer 3

Specialized type of mineralized connective tissue, withstands physical stress

Question 4

Compact Bone

Answer 4

Dense bone, osteon structural units,

Question 5

Spongy Bone

Answer 5

End of long bones, much less dense and consists of an interconnecting lattice of bony spicules filled with yellow and red bone marrow

Question 6

Yellow Bone Marrow

Answer 6

Inactive and infiltrated by adipose tissue

Question 7

Red Bone Marrow

Answer 7

Involved in blood cell formation

Question 8

Osteoblasts

Answer 8

Synthesize and secrete organic constituents of the bone matrix, build bone

Question 9

Osteoclasts

Answer 9

Large, multinucleated cells involved in bone reabsorption, breaking down

Question 10

Endochondral Ossification

Answer 10

Existing cartilage is replaced by bone

Question 11

Intramembranous Ossification

Answer 11

Connective tissue is transformed into and replaced by bone

Question 12

Origin

Answer 12

Point of attachment of a muscle to a stationary bone

Question 13

Insertion

Answer 13

Point of attachment of a muscle to the bone that moves

Question 14

Flexion

Answer 14

Bending of a joint

Question 15

Antagonist Muscle

Answer 15

Extend and flex contraction

Question 16

Skeletal Muscle

Answer 16

Voluntary, multinucleated, striated

Question 17

Myofibrils

Answer 17

Embedded in cells, divided into sarcomeres

Question 18

Sarcomere

Answer 18

Thin (actin) and thick (myosin) filaments

Question 19

Z line

Answer 19

End of the sarcomere, anchor thin filament

Question 20

M line

Answer 20

Runs down the middle

Question 21

H zone

Answer 21

The region containing thick filament only

Question 22

A band

Answer 22

Spans the entire length of the thick filament and overlaps with the thin filament

Question 23

I band

Answer 23

Region containing thin filaments only

Question 24

Smooth Muscle

Answer 24

Involuntary, lack of striations, centrally located nucleus

Question 25

Cardiac Muscle

Answer 25

Involuntary, One-two nuclei, striated