Basic science

Question 1

isotonic contraction

does tension or length stay constant?

Answer 1

tension constant

Question 2

types of motor neurones in muscle spindle

Answer 2

gamma

Question 3

skeletal muscle cell membrane

Answer 3

sarcolemma

Question 4

which type of collagen in fibrocartilage

Answer 4

type 1

Question 5

osteoprogenitor cells

Answer 5

pool of reserve osteoblasts

Question 6

what do osteoblasts secrete?

Answer 6

osteoid

Question 7

what hydrolyses Ach to terminate neuromuscular transmission

Answer 7

AchE

Question 8

what is Lambert-Eaton Myasthenia syndrome assoc with

Answer 8

muscle weakness in limbs

SCC of lung

Question 9

Skeletal NMJ
what causes fusion of Ach vesicles with presynaptic membrane?
what enters the cell when 2 mols of Ach bind and the gate opens?

Answer 9

Ca2+ causes fusion of Ach vesicles with the presynaptic membrane

2 mols of Ach bind, opening the gate, and Na+ enters the cell (K+ exits)

Question 10

Myasthenia gravis
F or M?
25% have??

Answer 10

F

25% have thymoma

Question 11

what does botulinum toxin irreversibly inhibit

Answer 11

Ach release

Question 12

what do curare like compounds interfere with

Answer 12

post synaptic action of Ach

Question 13

are TNF-alpha and IL1 involved in catabolism or anabolism?

Answer 13

catabolism

Question 14

what cells produce and maintain the ECM

Answer 14

chondrocytes

Question 15

property of proteoglycans

Answer 15

compressive

assoc with weight bearing

Question 16

joint lubrication

Answer 16

hyaluronic acid

lubricin