Muscle tissue

Question 1

What are the main properties fo muscle tissue?

Answer 1

Excitability, contractability, extensibility and elasticity

Question 2

Name the three types of muscle tissue

Answer 2

Striated, smooth and cardiac

Question 3

Define type 1 striated muscle

Answer 3

Aerobic, slow-twitch, abundant mitochondria, more frequent in long distance runners

Question 4

What are the main functions of muscle tissue?

Answer 4

Movement, posture, respiration, comminucation

Question 5

What is muscular dystrophy?

Answer 5

Progressive muscle weakness caused by the death of cells

Question 6

Describe Duchenne MD

Answer 6

X-linked recessive, caused by a lack of dystrophin in ECM

Question 7

What is muscular atrophy?

Answer 7

Shrinkage of muscles

Question 8

What can cause muscular atrophy?

Answer 8

Starvation, lack of use

Question 9

Describe the structure of cardiac muscle

Answer 9

Intercalated discs that connect each cell, contains gap junctions to allow the movement of small molecules