MUSCLES

Question 1

Properties of muscles

Answer 1

Contraction
Muscle tone
Elasticity
Fatigue

Question 2

How is muscle connected to bone

Answer 2

by a tendon

Question 3

what do the prefix myo and sarco relate to?

Answer 3

relates muscle

Question 4

Functions of muscles

Answer 4

Support joints
posture
movement
generate heat

Question 5

Types of skeletal muscles

Answer 5

Striped, cardiac, smooth, myoepithelial cells

Question 6

What does anisotropic mean

Answer 6

they do not refract light in the same way in all directions

can polarise light

Question 7

What does isotropic mean

Answer 7

Non polarising

Question 8

What is a muscle twitch

Answer 8

contraction period = twitch
3 twitch fibres = 2 fast and 1 slow
have well defined myofibrils

Question 9

Fibrillenstrukur fibres

Answer 9

make up majority of skeletal
well defined muscle fibrils - myofibrils
contraction period of 25 milli seconds (Fast twitch)
75 milli seconds (slow twitch)

Question 10

what are twitch fibres

Answer 10

motor innervation from plate endings of motor axons

Question 11

What are slow fibres

Answer 11

innervation is from the divided end of a nerve fibres (grape endings)

Question 12

what are the sensory structures and what are they called?

Answer 12

give info about state of contraction of the muscle and tendon.

• muscle spindles
• gogi tendon organs
• myotendinous cyclinders