8.1 (done)

what is the musculoskeletal system composed of?

• skeletal system

• muscular system

muscle cells

long + thin fibres that have the ability to contract

skeleton

gives shape + form to the body and prevents soft tissues from collapsing in a heap

striated

striped

spindle

some pointed shapes

types of muscle tissue

smooth, cardiac, skeletal

smooth - location

walls of internal organs such as; intestines, blood vessels

smooth - function

move substances through organs or vasoconstriction

smooth - control

involuntary

smooth - special features

non-striated, spindle shaped + single nucleus

cardiac - location

heart walls

cardiac - function

pumps blood throughout the body

cardiac - control

involuntary

cardiac - special features

striated, branched fibres, single central nucleus. Cells form an interconnected network joining one another called intercalated discs

skeletal - location

attached to bones

skeletal - function

movement of the skeleton + posture

skeletal - control

voluntary

skeletal - special features

striated + multi-nucleated