Bodies and Systems

What is the smallest unit of life in all living things?

• Tissue

• Organ

• Organ system

• Cell

Which type of cells are specialized to carry oxygen from the lungs to other cells throughout the body?

• Neuron cells

• Red blood cells

• Bone cells

• Platelets

How many cells approximately make up the human body?

• 100 million

• 100 billion

• 100 trillion

• 100 thousand

What is the primary function of platelets?

• To carry oxygen

• To help in contraction

• To help form a clot

• To carry signals

Which type of cell is involved in making new blood cells in a tissue called marrow?

• Smooth muscle cells

• Bone cells

• Neuron cells

• Cardiac muscle cells

What is the primary function of muscle tissue in the human body?

• To cover the inner spaces of organs

• To sense stimuli from the environment

• To provide support and structure to the body

• To facilitate movement

Which type of tissue is responsible for sensing stimuli and sending signals throughout the body?

• Muscle tissue

• Epithelial tissue

• Nervous tissue

• Connective tissue

Where can epithelial tissue be found in the human body?

• Under the connective tissue

• On the surface of organs and lining inner spaces

• Inside the bones

• In the brain only

What is a function of connective tissue?

• To help with digestion

• To contract muscles

• To provide support and structure

• To secrete chemicals for digestion

Which tissue type helps in the expansion and contraction of the stomach during the digestion process?

• Nervous tissue

• Connective tissue

• Muscle tissue

• Epithelial tissue