Ariana O
Senses 1. What are the 5 senses of the body? touch , taste, smell, hear and vision
2. What are the 5 sense organs? eyes ears toung skin noes
3. Pick 2 senses and explain how theys sense organ detects that particular sense
Taste: taste buds can pick up four basic tastes: sweet, salty, bitter, sour. At the bottom of each taste bud there is a nerve that sends messages to the brain.
Touch: Nerve endings in the skin and other parts of the body that sends messages to the brain.
4. It must be explained in your own words and include at least 3 relevant diagrams
external image SS1_2.jpg
external image SS1_2.jpg
external image EYE2.jpg
external image EYE2.jpg

external image images?q=tbn:ANd9GcR0ifqnPETHpN2K4XoKtJkWr-x8mGNw5OK3RlKWxZZDaWqfaYXEbQ
external image images?q=tbn:ANd9GcR0ifqnPETHpN2K4XoKtJkWr-x8mGNw5OK3RlKWxZZDaWqfaYXEbQ


List the names of the different parts of the body involved in the system Answer :
  • Two kidneys
  • Two ureters.
  • Bladder
  • Two sphincter muscles
  • Nerves in the bladder
  • Urethra
    • Two kidneys- a pair of purplish-brown organs located below the ribs toward the middle of the back.produce urine.
    • Two ureters - narrow tubes that carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, About every 10 to 15 seconds, small amounts of urine are emptied into the bladder from the ureters.

    • Bladder - located in the lower abdomen. It is held in place by ligaments that are attached to other organs and the pelvic bones. The bladder's walls relax and expand to store urine.
    • Two sphincter muscles - circular muscles that help keep urine from leaking by closing tightly like a rubber band around the opening of the bladder.
    • Nerves in the bladder - alert a person when it is time to urinate, or empty the bladder.
    • Urethra - the tube that allows urine to pass outside the body. The brain signals the bladder muscles to tighten, which squeezes urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax to let urine exit the bladder through the urethra.