https://padlet.com/itsgrimreaaper/dlszobel Quarter 2 Science en-us 2017-10-10 08:36:33 UTC 2017-10-10 16:45:06 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Diskette.png itsgrimreaaper https://padlet.com/itsgrimreaaper/dlszobel/wish/195671583 I learned the 5 organ systems; Respiratory, Circulatory, Nervous, Endocrine and the Reproductive System (which is the Male and Female Reproductive System).
I didn't really understand the other parts of the Endocrine System and the Reproductive System (the male part because i find it hard to memorize all the parts of the male reproductive) when we are discussing it.

In the topic of Respiratory System, I learned the flow chart of respiration;
 Conducting Zone - Air gets into the body through the nose, then the air will pass through a muscular tube (pharynx) that carries the air down into the windpipe (trachea) then to the epiglottis which is like leaf-shaped piece of cartilage down to the larynx, vocal chords and trachea (the windpipe that takes the air from the vocal chords to the lungs) and lastly, the air will pass through the bronchial tube and goes inside the air sacs called alveoli where the process of oxygen occurs.

In the topic of Circulatory System, I learned how the blood flows in the heart.
 The blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen poor blood from the body into the right atrium then the pulmonary vein empties oxygen rich blood from the lungs into the left atrium. So the blood flows from the right atrium into your right ventricle through the open tricuspid valve and when the ventricles are full, the tricuspid valve shuts to prevent the blood from flowing backward into the atria while the ventricle contracts (Right Side) and from the left side, the blood flows from the left atrium into your left ventricle through the open mitral valve and when the ventricles are full, the mitral valve shuts to prevent the blood from flowing backward into the atria while the ventricle contracts. Once the blood travels through the pulmonic valve, it enters your lungs where the oxygen travels from the tiny air sacs in the lungs, through the walls of the capillaries into the blood.

In the topic of Nervous System, I learned that the the Brain is like a computer that controls the body's functions and the Nervous System is like a network that relays messages to parts of the body. It does this via the Spinal Cord which runs from the brain down through the back and contains threadlike nerves that branch out to every organ and body parts.

In the topic of Endocrine System, I learned that Endocrine System has glands secrete hormones to regulate many bodily functions, including growth, metabolism and maintains homeostasis of blood composition and volume.

In the topic of Reproductive System, I learned some parts of Male Reproductive System unlike the Female Reproductive System.
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