Week 13 - Muscles of the Upper Body

Which type of muscle tissue is attached to bones?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• Involuntary muscle

What characteristic is true of smooth muscle?

• Striated and voluntary

• Not striated and involuntary

• Striated and involuntary

• Not striated and voluntary

Where is cardiac muscle found?

• Attached to bones

• In the heart

• In blood vessels

• In glands

Which type of muscle tissue is both striated and involuntary?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Voluntary muscle

What is the plasma membrane of a muscle cell called?

• Sarcoplasm

• Sarcolemma

• Myofibril

• Mitochondrion

What is the cytoplasm of muscle cells known as?

• Sarcolemma

• Myofibril

• Sarcoplasm

• Transverse tubules

What structure gives muscle cells their striated appearance?

• Sarcoplasm

• Mitochondrion

• Fibrils

• Nucleus

What are T-tubules extensions of?

• Sarcolemma

• Sarcoplasmic reticulum

• Terminal cisternae

• Triad

What is the function of T-tubules in muscle cells?

• Conduct electrical impulses

• Store calcium

• Produce energy

• Synthesize proteins

Where do T-tubules run in relation to the sarcoplasmic reticulum?

• Next to it

• Above it

• Below it

• Inside it