Functions of Muscles

Generates heat description:

- muscles are body's main generator of heat - ATP is used each time a muscle contracts - some of the energy is lost as heat - is reason why you sweat when you exercise

Maintains posture description:

- some skeletal muscles function continuously to keep the body upright ex) abdominal muscles ex) muscles along vertebral column

Stabilizes joints description:

- tendons help to reinforce joints - muscles move joints but also help keep bone ends in place

What are main functions of muscle cells (4)

1) produces movement 2) maintains posture 3) stabilizes joints 4) generates heat

Produces movement (2) types:

a) skeletal: - stimulation allows body as a whole to move (locomotion) b) smooth/ cardiac: - stimulation creates the movement of substances through body - ex) cardiac muscle moves blood - ex) smooth muscle moves digested food