Cells & Tissues
The smallest unit of life.
What is a cell?
The bone that protects your brain.
What is the skull?
Muscles that work without your choice (like your heart).
What are involuntary muscles?
The liquid that carries oxygen to your cells.
What is blood?
The first step of digestion happens here.
What is the mouth?
This structure controls what enters and leaves a cell.
What is the cell membrane?
These connect bones to other bones.
What are ligaments?
The muscle that pumps blood throughout the body.
What is the heart?
These blood cells carry oxygen using hemoglobin.
What are red blood cells?
The muscular tube that pushes food to the stomach.
What is the esophagus?
The type of tissue that sends electrical messages.
What is nerve tissue?
The place where two bones meet.
What is a joint?
Muscles can only do this action (not push).
What is contract?
The vessels that carry blood away from the heart.
What are arteries?
Organ where most nutrient absorption takes place.
What is the small intestine?
The “powerhouse” of the cell.
What is the mitochondrion?
The protein-rich tissue that makes new blood cells inside bones.
What is bone marrow?
These muscles move your bones.
What are skeletal muscles?
These vessels have valves to keep blood moving in one direction.
What are veins?
The large organ that produces bile.
What is the liver?
Groups of cells working together form this.
What is a tissue?
The longest bone in the human body.
What is the femur?
The strong, flexible tissues that connect muscle to bone.
What are tendons?
The tiny vessels where oxygen and nutrients pass into tissues.
What are capillaries?
The wavelike movement that pushes food through the system.
What is peristalsis?