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Flashcards in MSK Basic Science Deck (14)
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1

what are Osteoprogenitor cells?

a reserve pool of osteoblasts

2

what are Osteoblasts?

bone forming cells

3

what are Osteocytes?

bone cells trapped in the bone matrix

4

what are Osteoclasts?

bone cells that do bone reabsorption

5

what are muscle fibres grouped into?

fascicles

6

connective tissue round the whole muscle?

epimysium

7

connective tissue around a single muscle fibre?

endomysium

8

what type of bone makes up the shaft?

cortical bone

9

what type of bone makes up the epiphysis?

trabecular

10

what muscles are striated?

skeletal and cardiac

11

what muscles are unstriated?

smooth muscle

12

functional unit of muscle?

sarcomere

13

muscle contraction

Ca release from SR
binds to troponin, causing tropmyosin to move and uncover the binding sites
myocin attaches to actin
(ATP NEEDED)

14

what is the border of sarcomeres?

Z lines