Muscular System

The muscular system interacts with the skeletal system by:

• smooth muscles are joined with spongy bone via cartilage

• skeletal muscles pull on joints to permit movement

• cardiac muscle is connected to the ribs

• skeletal muscles are joined to one another via ligaments

The sliding filament theory explains which of the following?

• muscle extensions

• muscle inductions

• muscle contractions

• muscle formation

Which parts of the muscular system have striations? select ALL that apply

• cardiac muscle

• skeletal muscle

• smooth muscle

• none of the above

______ and ______ work together to allow muscles to contract.

• ATP, Calcium

• smooth muscle, cardiac muscle

• Electrolytes, Phosphorous

• hemoglobin, plasma

Tags

NGSS.MS-LS1-3

__________ from myosin filaments latch onto the ________ filaments. Their union causes muscles to contract.

• actin, globular heads

• G-actin, F-actin

• globular heads, actin

• F-actin, G-actin

Smooth muscle is present in your:

• heart

• digestive system

• skeletal system

• skeletal muscle

Tags

NGSS.MS-LS1-3

Which parts of your muscular system are voluntary? Select ALL that apply.

• cardiac muscle

• skeletal muscle

• smooth muscle

• none of the above

The ________ surrounds individual muscle fibers.

• endomysium

• perimysium

• epimysium

• exomysium

Each unit in a muscle fiber is called a __________.

• myosin

• globular heads

• sarcomeres

• troponin

Smooth muscle lacks:

• ATP

• calcium

• involuntary contractions

• striation