Kinesiology - skeletal muscles Flashcards
How many functions do skeletal muscles have?
4
What are the 4 functions of skeletal muscles?
- movement
- posture
- store + move substances
- thermoregulation
What are the 2 key functions out of the 4?
- movement
- posture
How do skeletal muscles produce movement?
1) force is produced by the muscle
2) force is transmitted to the skeleton via the tendon
3) movement occurs OR joint is stabilised OR posture is maintained
What do tendons connect?
muscle to bone
What do ligaments connect?
bone to bone
How many types of muscles do we have in the body?
7
What are the 7 types of muscles in the body?
- unipennate
- bipennate
- multipennate
- parallel
- fusiform
- convergent
- circular
Which type of muscles are the most powerful?
any with PENNATE
Are tendons pulled more in pennate muscles or parallel muscles?
parallel
Why is more tension produced in a pennate muscle contraction?
due to them being pulled at an angle to the tendon (pennate angle)
Define origin
the tendons attachment(s) nearest the centre of the body
Define insertion
the tendon attachment(s) furthest from the centre of the body
Can you have multiple origin points at a muscle?
yes
Are the insertions pulled towards the origin or away?
towards
