What is the chemical released from glands?
Hormones.
What causes chemical digestion in the mouth?
Saliva
What is the major organ that pumps blood?
Heart.
What do nerves transmit with?
Neurons.
What is the main organ of the respiratory system?
Lung.
How many glands are there in the human body?
5.
Where are nutrients absorbed?
Small intestine.
What blood cells carry oxygen?
Red.
True or false? Signals are active transport.
True.
What are the air sacs called in the lungs?
Alveoli
True or false? Any hormone can be received by any target cell.
false.
Where is water absorbed?
Large intestine.
What blood vessels does diffusion happen in?
Capillaries.
What organs/structures are apart of the central nervous system?
Spinal cord and brain.
What gas does the human body need to survive?
Oxygen.
What gland regulates blood sugar?
Pancreas.
What is in the lining of the small intestine?
Villi.
What carries blood away from the heart?
Arteries.
What cell receives information from the outside world?
Sensory neuron.
What gas is a toxic byproduct of cellular respiration?
Carbon dioxide.
What gland responds to stress?
Adrenal gland.
What is the passageway between the mouth and the stomach?
Esophogus.
What allows red blood cells to carry oxygen?
Hemoglobin.
What happens in the nervous system when you have a reflex?
The information is received in the spinal cord and immediately triggers a muscular neuron to react.
What is the process where gases go into capillaries?
Simple diffusion.