MUSCLES!!

Question 1

Features of muscles

Answer 1

nervous control- nerve stimuli controls muscle action
contractility- muscles contract and become thicker
extensibility- muscles can strech when force is applied
elasticity- muscles can return to their orginal size once streched
atrophy- muscles can decrease in size due to lack in exercise, injury or disease
hypertrophy- muscles can grow in size, growth with increase in training

Question 2

Fusiform

Answer 2

run at muscle belly, mobility and produce contractions over large range but produce low force- biceps and sartorius

Question 3

pennate muscles

Answer 3

run at angles to the tendons, less mobility than the fusiform

Question 4

uni- pennate muscles

Answer 4

fibres are only found on one side of the central tendon, like semimembranosus in the hamstring

Question 5

bi pennate muscles

Answer 5

fibres are found on either side of central tendon, like the femoris on the quadriceps

Question 6

multiple pennate

Answer 6

branch off from several tendons, this creates a strong force load, eg: deltoids

Question 7

radiate muslces

Answer 7

muscles that come out from the main tendon, producing strenth and mobility, like the chest muscle