Heart goes Doki Doki (Circulatory system)
The server will be down for Maintenance (Respiratory and Urinary)
Circle, circle, dot, dot, now I have my cootie shot (Immune system)
I think, therefore I secrete (Nervous and endocrine)
Reproduction, the genetic opera (Meiosis, reproduction, genetics)
200

This is the smallest designation of blood vessel.

What are capilaries?

200

A lower respiratory system infection indicates an infection in this organ.

What are the lungs?

200

These cells of the immune system are known for eating/engulfing invading organisms.

What are macrophages?

200

This gland is largely known for its role during puberty for the secretion of growth hormone, but it does play a larger role in the endocrine system.

What is the pituitary gland?
200

This stage of meiosis is where homologous chromosomes separate.

What is anaphase I?

400

This chamber of the heart receives oxygenated blood from the lungs.

What is the left atrium?

400

The digestion of this monomer is what creates the nitrogenous waste that the kidneys remove.

What are amino acids?

400

This protein, produced by cells of the immune system, assists in fighting off infections.

What are antibodies?

400

This portion of the brain regulates heartbeat, breathing, and other important bodily functions without conscious thought.

What is the brain stem?

400

This structure is part of the male reproductive system and urinary system.

What is the urethra?

600

This type of cell is well known for its role in transporting oxygen around the body via the protein known as hemoglobin.

What are red blood cells?

600

High concentrations of this molecule can cause kidney stones and if in the joints, are an indication of gout.

What is urea?

600

This treatment, made by weakening or killing pathogens, is used to educate the immune system prior to exposure to an actively infectious agent.

What is a vaccine?

600

This hormone causes increased heart rate, sweating, and dilation of the pupils. It is commonly used in emergency responses for allergic reactions.

What is adrenaline/epinephrine?

600

This trait is known for being spread amidst European royalty due to a random mutation in Queen Victoria and was passed on to all her children.

What is hemophilia?

800

This device is commonly used to correct problems with irregular heartbeat.

What is a pacemaker?

800

This structure is where gas exchange occurs in the lungs.

What is the alveoli?

800

These portions of the lymphatic system are said to be where immune cells live and wait for pathogens to be presented to them.

What are lymph glands?

800

This class of chemicals is used to cross the gap between nerve cells and pass signals.

What are neurotransmitters?

800

This trait is more common in individuals with XY instead of XX, and leads to problems with particular nerves and light receptors in the eyes. 

What is colorblindness?

1000

This process is the main way nutrients and wastes are exchanged between blood circulation and lymphatic fluid.

What is diffusion?

1000

If an individual no longer has functional kidneys, they will need to regularly undergo this procedure to remove wastes from their blood.

What is dialysis?

1000

This immune cell is known for assisting in the start of specific immune responses and is targeted by HIV.

What are T-helper cells?

1000

This procedure, no longer performed, was used by psychologists and psychiatrists to "calm" mental patients by severing the nerves to the frontal lobe.

What is a lobotomy?

1000

Human blood typing is an example of this pattern of inheritance.

What is co-dominance?

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