IRMAK GRADE 11-SKELETAL- MUSCULAR

Calcium:

• causes ATP binding to actin
• increases the action potential along the sarcolemma
• binds to proteins on myosin
• triggers the binding of myosin to actin

Actin filaments are bound to the edges of the sarcomere, also known as the...

• M-Line

• H-Zone

• Z-Line

• A-Band

The outside of the bone is called the _____.

• periosteum
• cancellous
• marrow
• compact

_____ causes the growth of long bones during childhood.

• Epiphyseal plates
• Periosteum
• Endosteum
• Medulla

The human skeleton can be subdivided into two parts. What part is made up of the skull, sternum, vertebral column and rib cage?

• appendicular
• axial

Which is not a function of the skeletal system?

• Protection of organs

• Storage of blood

• Synthesis of needed materials

• Heat generation

ATTACHES MUSCLE TO BONE.

• TENDON
• LIGAMENT

HOW MANY BONES ARE THERE IN THE SKELETAL SYSTEM?

• 176
• 206

CONNECTS BONE TO BONE

• TENDON
• LIGAMENT

TYPE OF JOINT THAT CAN'T MOVE. FOUND IN SKULL.

• HINGE
• FIXED