9/23 Muscular System

What are the functions of the muscular system. Select 2 correct answers.

• Helps you see

• Helps you move

• Helps fight diseases

• Helps your heart beat

How do muscles work?

• by stretching out

• by contracting and squeezing

Which type of muscle is found only in the heart?

• cardiac muscle

• soft muscle

• voluntary muscle

• smooth muscle

Which type of human body tissue can contract, or shorten?

• epithelial tissue

• connective tissue

• muscle tissue

• nerve tissue

Muscle cells do their job by contracting, or getting shorter. That action uses a lot of energy. What organelle do muscle cells have a lot of?

• mitochondria

• chloroplasts

• nucleus

• cell membrane

Tags

NGSS.HS-LS1-7

Muscle cells use a lot of energy. The mitochondria take in food particles to do cellular respiration. What other particle do the mitochondria need for that process?

• oxygen

• carbon dioxide

• sugar

• Red Bull

Muscle cells are in the muscular system. They need a lot of food and oxygen to make their energy. What body system helps them to get the food they need?

• respiratory system

• cardiovascular system

• digestive system

• excretory system

Muscle cells are in the muscular system. They need a lot of food to make their energy. What body system makes the food small enough for the cells?

• respiratory system

• digestive system

• excretory system

Muscle cells are in the muscular system. They take in food and oxygen and release waste. What body system helps to remove the waste made from the cells?

• respiratory system

• cardiovascular system

• digestive system

• excretory system

Muscle cells are in the muscular system. During cellular respiration, they produce a waste gas called carbon dioxide. What system helps your body to breathe out the waste gas?

• respiratory system

• cardiovascular system

• digestive system

• excretory system