Histology - MSK

Question 1

Where are nuclei located in muscle fibres?

Answer 1

At the periphery, just under the cell membrane (sarcolemma)

Question 2

What are muscle fibres grouped into?

Answer 2

Fascicles

Question 3

What is the connective tissue that surrounds the whole muscle called?

Answer 3

Epimysium

Question 4

What is the connective tissue around a single fascicle called?

Answer 4

Perimysium

Question 5

What is the connective tissue around a single muscle fibre called?

Answer 5

Endomysium

Question 6

Sarcomeres are placed end-to-end in their thousands to form what?

Answer 6

Myofibril

Question 7

List the 3 types of skeletal muscle fibre

Answer 7

Type I
Type IIA
Type IIB

Question 8

Describe type I skeletal muscle fibre

Answer 8

Slow to contract
Abundant mitochondria; resist fatigue
Less force
Red fibres

Question 9

Describe type IIA skeletal muscle fibre

Answer 9

Relatively fast contracting compared to type I

Uncommon

Question 10

Describe type IIB skeletal muscle fibre

Answer 10

Rapid contraction
Few mitochondria; anaerobic metabolism
Great force
White fibres

Question 11

What are the cells found within cartilage called?

Answer 11

Chondrocytes

Question 12

List the 3 main types of cartilage

Answer 12

Hyaline
Elastic
Fibrocartilage

Question 13

Bone is 65% _____, 23% _____ and 10% ______

Answer 13

Mineral, collagen, water

Question 14

What are the cells within bone called?

Answer 14

Osteocytes