Muscular System
The type of muscle tissue found in organs like the stomach and blood vessels, and is involuntary.
What is the smooth muscle?
The largest bone in the human body.
What is the femur?
The main control center of the body, protected by the skull.
What is the brain?
The collective name for the semi-liquid, acidic mass of partially digested food that leaves the stomach and enters the small intestine.
The body's ability to maintain a stable internal environment despite external changes.
What is homeostasis?
The main muscle that you use for breathing, located beneath the lungs.
What is the diaphragm?
The tissue that connects bone to bone, often stabilizing a joint.
What is a ligament?
The basic unit of the nervous system, which is a nerve cell.
What is a neuron?
The rhythmic, wave-like contractions of smooth muscle that move food through the digestive tract.
What is peristalsis?
The largest organ of the body, part of the integumentary system.
What is skin?
Muscles that decrease the angle between bones when you lift your forearm.
What are flexors?
The common name for the patella.
What is the kneecap?
The long cable of nerves running down your back, protected by your vertebrae.
What is the spinal cord?
The largest internal organ, whose functions include producing bile and detoxifying blood.
What is the liver?
The primary nitrogenous waste product produced by the liver and excreted by the kidneys.
What is urea?
The muscle that works in opposition to another muscle. For example, the triceps oppose the biceps.
What is an antagonist?
Soft tissue inside bones where red blood cells and most white blood cells are made.
What is bone marrow?
The gap or junction where one nerve cell passes a signal to the next.
What is a synapse?
The enzyme in saliva that begins the chemical breakdown of starches.
What is amylase?
The major filtering organs that produce urine.
What are the kidneys?
The two minerals that make up the inorganic matrix of bone tissue, providing its hardness and rigidity.
What are calcium and phosphate?
The process by which cartilage is gradually replaced by bone.
What is ossification?
The chemical messenger released by a motor neuron to signal a muscle to contract.
What is a neurotransmitter?
This is where the majority of chemical digestion and nutrient absorption occurs.
What is the small intestine?
The chamber of the heart that pumps oxygenated blood to the rest of the body.
What is the left ventricle?