Technically… Wouldn’t it be a Homocide of Crows? Never borrow money From your pets…it Can get really Weird at home. For everyone! Think outside of the closed quadric surface that is a three-dimensional analogue of an ellipse. Nervous System? Hey, you’d be nervous too with all of that responsibility! Se você quer saber o que isso significa, não ser preguiçoso. Olhar para cima!

What is the primary function of the circulatory system?

To pump blood throughout the body so that cells can get the oxygen and nutrients they need. The circulating blood also carries metabolic waste away from cells so that they can be disposed of.

What are the major components of the circulatory system?

-Heart -Arteries -Veins -Capillaries -Blood

Pick another organ system and explain its interaction with the circulatory system.

Respiratory: This provides the mechanism for gas exchange with the environment. The circulated blood is oxygenated because the lungs can absorb this gas from the atmosphere. They also expel CO 2 from the body. Digestive: The nutrients absorbed by this system are circulated in the blood. Nutrients are also necessary to maintain the cells of this system. Nervous: The impulses from this system control the heart. These cells need oxygen, nutrients, and wastes removed as well.

Explain the difference between arteries and veins. *What’s the exception?

Veins: To the heart…carry deoxygenated blood Arteries: Away from the heart…carry oxygenated blood * Pulmonary artery and vein…they’re the opposite.

What are the components of blood?

*Plasma-liquids w/ dissolved salts, sugars, and proteins (some other stuff too). *Red Blood Cells-have hemoglobin to carry O 2 *Platelets-pieces of larger cells that (together with other proteins) help blood to clot. *White Blood Cells-an integral part of the immune system.

What is the major function of the respiratory system?

Gas exchange with the environment… O 2 in CO 2 out

What are the major components of the respiratory system?

- Mouth/Nose -Pharynx/Larynx -Trachea -Bronchi -Alveoli

What muscle facilitates breathing?

The Diaphragm

Why is the oxygen that is taken in by the respiratory system important for humans?

Oxygen is a reactant in the process of cellular respiration. This produces ATP, which fuels metabolism.

What is the name of the protein in red blood cells that binds to the oxygen molecule allowing this gas to be carried throughout the body?

That’d be Hemoglobin

What’s the primary function of the digestive system?

It breaks down food (mechanically and chemically), extracts the nutrients, and facilitates their absorption.

Does food go through the gallbladder, pancreas, and liver?

NO!

What do the gallbladder, pancreas, and liver actually do?

Gallbladder: Stores bile from the liver, which aids in the digestion of lipids Liver: Produces bile. It does other stuff too…detoxifies blood, synthesizes (makes) blood proteins, stores glucose as glycogen, and makes urea. Pancreas: Produces insulin and glucogon, which regulate blood sugar levels.

What is a primary need for glucose in humans?

It is oxidized in the mitochondria of cells to produce ATP (energy).

What is the path of food through the digestive system?

Mouth Esophagus Stomach Duodenum Small Intestine Large Intestine Anus (stop giggling)

What is the central nervous system?

Basically…that’s the brain and the spinal cord.

Are there other parts of the nervous system besides the central part?

Why yes! Yes there are! The other part is called the peripheral nervous system. That’s broken down into: The somatic NS: sensory and motor nerve fibers. The Autonomic NS: that’s actually three parts (I know enough already…right!) the sympathetic, parasympathetic, and enteric. These control organs, glands…stuff like that. Whaaaaa? Don’t worry about it.

What are the major parts of a nerve cell?

What is a synapse?

A junction of two nerve cells, consisting of a very small gap across which electrochemical impulses pass. This is facilitated chemicals called neurotransmitters (like norepinephrine, acetylcholine, dopamine…but you knew that).

What is the relationship among the nervous system and the other systems?

The nervous system controls all of the systems in the body. Being made of cells, it needs the oxygen, nutrients, waste removal, and protection that these other systems provide.

Cells, tissues, organs, and organ systems all come together to form what?

An Organism

What do plants need in order to undergo photosynthesis, and what do they produce?

They need CO 2 and H 2 O and they produce O 2 and C 6 H 12 O 6.

What are the parts of the urinary part of the excretory system?

-Kidneys (contain nephrons that filter the blood (a lot of metabolic byproducts from protein metabolism). Urine is produced (urea + water) then… -Urine travels through the Ureter-from the kidneys to the… Bladder: Stores urine. Urethra…out it goes

What are two types of circulation?

Pulmonary: Heart to lungs and back to heart. Systemic: Heart to everywhere and back to heart.

How many chambers does the human heart have?

Four 4 IV 1,2,3,4 Uno, dos,tres, quatro You Dig?