Skeletal/Muscular
These strong bands connect bones to other bones and help stabilize joints.
What are ligaments?
These blood vessels carry blood away from the heart.
What is an Artery?
This is the outer layer of the skin that produces new skin cells and contains the protective protein keratin.
These blood cells help defend the body against pathogens and disease.
What is a white blood cell?
This organ absorbs most nutrients after digestion is completed.
What is the Small Instestine?
These tough cords connect skeletal muscles to bones
What are Tendons?
This muscular organ pumps blood to the lungs and the rest of the body.
What is the Heart?
These glands produce sweat, which helps cool the body as it evaporates.
These proteins attach to specific foreign substances and help neutralize or mark them for destruction.
What is an antibody?
This organ produces bile, processes nutrients, and helps remove toxins from the blood.
What is the Liver?
This type of muscle is attached to bones and is usually controlled consciously.
What is skeletal muscle?
These tiny air sacs are the main sites where oxygen enters the blood and carbon dioxide leaves it.
What is Alveoli?
This specialized cell sends electrical and chemical signals through the nervous system.
What is a Neuron?
This gland produces hormones that regulate how quickly cells use energy.
What is the Thyroid?
These microscopic filtering units in the kidneys remove wastes and reabsorb useful substances and water.
What is a Nephron?
These two protein filaments slide past one another inside muscle fibers to produce contraction.
What is actin and myosin?
This dome-shaped muscle contracts and moves downward during inhalation, increasing the volume of the chest cavity.
What is a Diaphragm?
This rapid, automatic response often uses the spinal cord before the brain fully processes the information.
What is a reflex?
These specialized immune cells can remember a pathogen and help the body respond more quickly during a later infection.
What is a memory cell?
This hormone signals the kidneys to conserve water and produce less urine when the body is dehydrated.
What is Antidiuretic Hormone (ADH)?
These cells build new bone, while another type called osteoclasts breaks down old bone during remodeling.
What is an osteoblast?
This process moves oxygen and carbon dioxide from areas of higher concentration to areas of lower concentration across the alveoli and nearby capillaries.
What is Diffusion?
This division of the autonomic nervous system prepares the body for action by increasing heart rate and slowing digestion.
What is the Sympathetic Nervous System?
This organ produces insulin and glucagon, hormones that help regulate blood glucose levels.
What is the Pancreas?
These rhythmic muscle contractions push food through the digestive tract.
What is peristalsis?