Muscles

Question 1

what are the organisation levels of skeletal muscles

Answer 1

muscle 
fascicle
myofibril
sacromere
contractile proteins - myosin and actin

Question 2

what are muscle fibres covered by

Answer 2

endomysium

Question 3

what is each fascicle covered by

Answer 3

perimysium

Question 4

what are other properties of cardiac muscle

Answer 4

• long
• thick
• can self excite
• uniform in diameter? could vary in diameter

Question 5

what are places that smooth muscle is

Answer 5

colon 
oesophagus 
stomach 
bladder
small intestine

Question 6

what do smooth muscles become as they contract

Answer 6

shorter and thicker

Question 7

what are smooth muscles innervated by

Answer 7

the autonomic nervous system

Question 8

what is the diaphragm made out of

Answer 8

striated somatic muscle (skeletal muscle)

Question 9

what is the structure of smooth muscle

Answer 9

• have a skeleton of intermediate fibres that criss cross over their surface connected by dense bodies

Question 10

why do smooth muscle have both circular and longitudinal layers

Answer 10

so they can both dilate and shorter when the organ contracts
- aids perstasis