What is a muscle?

What do tendons do in the muscular system?

• Attach muscles to bone

• Produce red blood cells

• Store calcium

• Connect bones to each other

What is the main difference between muscles and other connective tissues?

• Only muscles have cells that can contract.

• Only connective tissues have blood vessels.

• Muscles are made entirely of collagen.

• Connective tissues can generate electrical impulses.

How many muscles are there in the human body?

• < 100

• 200-300

• 400-500

• > 600

Which function of muscles involves continuous low-level contraction, such as neck muscles holding up the head?

• Posture

• Locomotion

• Digestion

• Respiration

What is the function of muscles that involves shivering and increased metabolism?

• Thermogenesis

• Osmoregulation

• Photosynthesis

• Digestion

Which function of muscles is related to peristalsis and moving food through the esophagus and intestines?

• Digestion

• Respiration

• Circulation

• Excretion

Identify the type of muscle tissue shown in image (a):

• Skeletal

• Smooth

• Cardiac

Identify the type of muscle tissue shown in image (b):

• Skeletal

• Smooth

• Cardiac

Identify the type of muscle tissue shown in image (c):

• Skeletal

• Smooth

• Cardiac

Which type of muscle is responsible for rapid, powerful contractions such as walking, running, lifting, and blinking?

• Skeletal

• Smooth

• Cardiac