Advanced Digestive System
This enzyme, found in saliva, begins the digestion of carbohydrates.
What is amylase?
Animals that primarily eat meat are classified as this type of consumer.
What are carnivores?
This gas is necessary for cellular respiration to produce energy.
What is oxygen (O₂)?
This type of blood vessel carries blood back to the heart.
What are veins?
The circulatory system transports this respiratory gas to body cells.
What is oxygen (O₂)?
This muscular tube connects the mouth to the stomach and moves food using peristalsis.
What is the esophagus?
Omnivores, like humans, have these two types of teeth for processing both plants and meat.
What are molars and canines?
This cartilage structure, also called the voice box, contains vocal cords.
What is the larynx?
This is the only artery in the body that carries deoxygenated blood.
What is the pulmonary artery?
This system breaks down food so the circulatory system can transport nutrients.
What is the digestive system?
The stomach secretes this strong acid to help break down food.
What is hydrochloric acid (HCl)?
This organ is larger in herbivores to help them break down plant material.
What is the cecum?
The trachea is lined with these tiny hair-like structures that help filter out dust and debris
What are cilia?
This chamber of the heart pumps oxygenated blood to the rest of the body.
What is the left ventricle?
The liver plays a role in both the digestive and circulatory systems by filtering this from the blood.
What are toxins?
This ring of muscle controls the passage of food from the stomach into the small intestine.
What is the pyloric sphincter?
Birds lack teeth, so they use this specialized organ to grind food.
What is the gizzard?
When you exhale, this muscle relaxes and moves upward to push air out of the lungs.
What is the diaphragm?
The pacemaker of the heart, which regulates heartbeat, is also called this.
What is the sinoatrial (SA) node?
The circulatory system works with this system to remove carbon dioxide from the body.
What is the respiratory system?
The pancreas produces this hormone to regulate blood sugar levels.
What is insulin?
This adaptation in ruminant animals allows them to regurgitate and re-chew food for better digestion.
What is rumination (chewing cud)?
This disease causes the airways to become inflamed and narrowed, making breathing difficult.
What is asthma?
This condition occurs when arteries become narrowed due to plaque buildup, restricting blood flow.
What is atherosclerosis?
This part of the brain regulates involuntary breathing and heart rate.
What is the medulla oblongata?