Muscles and Movement

Question 1

three types of muscle

Answer 1

smooth - involuntary action, non-striated
skeletal - voluntary, striated
cardiac - striated

Question 2

what is the functional unit of skeletal muscle

Answer 2

a sarcomere

Question 3

what two proteins cause the striations of a sarcomere

Answer 3

actin and myosin

Question 4

a tendon joins which two things together

Answer 4

a muscle and a bone

Question 5

what is an aponeurosis

Answer 5

flattened tendon

Question 6

what is a reflex

Answer 6

a protective and automatic response made by muscles due to CNS protecting the body from danger

Question 7

what is muscle paralysis and what is the issue

Answer 7

dysfunctional MOTOR nerve supply
muscle cannot contract
on examination has reduced tone

Question 8

what is muscle spasticity and what is the issue

Answer 8

motor nerve supply is functioning correctly
descending controls from CNS not functioning correctly
on examination has increased tone

Question 9

what is muscle atrophy

Answer 9

wastage of muscles

due to decreased size of myocytes due to inactivity