Body Basics
This is the smallest structural and functional unit of an organism.
What is a cell?
This protein gives strength and flexibility to the skin and hair.
What is keratin?
These blood vessels carry blood away from the heart.
What are arteries?
These are the components of the central nervous system.
What are the brain and spinal chord?
This is the body's longest and strongest bone.
What is the femur?
This term describes the body's ability to maintain internal stability.
What is homeostasis?
This pigment gives skin its color.
What is melanin?
This component of blood helps in clotting.
What are platelets?
This is a gap between two neurons where neurotransmitters are released.
What is a synapse?
This type of muscle tissue is under voluntary control.
What is skeletal muscle?
This is another term for the posterior side of the body.
What is dorsal?
This type of tissue is the most abundant tissue in your body.
What is connective tissue?
This valve is located between the left and right ventricle.
What is the mitral valve?
This fatty substance insulates nerve fibers to increase the speed of nerve impulses.
What is myelin?
This connects muscle to bone.
What is a tendon?
This cavity contains the digestive organs, kidneys, and spleen.
What is the abdominal cavity?
This term describes cells that are flat.
What is squamous?
This condition occurs when the heart's electrical system malfunctions, causing an irregular heartbeat.
What is arrhythmia?
This part of the brain is responsible for balance and coordination.
What is the cerebellum?
This joint allows for the most range of motion.
What is a ball-and-socket joint?
This term means "towards the midline."
What is medial?
Salivary and sweat are this type of glands.
What are exocrine glands?
This is the scientific term for white blood cells.
What are leukocytes?
This branch of your nervous system deals with resting and digesting.
What is the parasympathetic?
This protein filament, along with myosin, is responsible for muscle contraction.
What is actin?