21.3B Text A

What is a joint?

• A place where two or more bones meet
• A place where muscles connect
• A place where tendons attach
• A place where ligaments cross

Which type of joint allows no movement?

• Freely movable joints
• Slightly movable joints
• Immovable joints
• Flexible joints

Where are most immovable joints found?

• In the spine
• In the skull
• In the shoulders
• In the hips

What type of joint permits movement in two or more directions?

• Fixed joints
• Slightly movable joints
• Immovable joints
• Freely movable joints

Which statement about skeletal movement is correct?

• Skeletons can move independently
• Muscles generate the force for movement
• Bones generate their own force
• Joints alone create movement

How many types of muscle tissue are there?

• Two
• Four
• Three
• Five

What is a distinctive feature of skeletal muscle tissue?

• Smooth appearance
• Single nucleus
• Striations
• Small cell size

Which characteristic is true of smooth muscle cells?

• They have multiple nuclei
• They have striations
• They are voluntarily controlled
• They have a single nucleus

Where is cardiac muscle found?

• Throughout the body
• Only in the heart
• In blood vessels
• In the digestive system

What controls most skeletal muscle movements?

• The central nervous system
• The digestive system
• The respiratory system
• The endocrine system