Transcript Skeletal system: snakes

Skeletal system
BY: Chris Spurrier, Kyle
Sam Moutry, Kaija Schmauss
Skeletal system: snakes
• A snake may have more
than 100 pairs of ribs.
• The skeletal of a snake is
made up from a skull, a
long backbone, ribs and a
tail.
• On a snake's body only
the backbone reaches the
tip of the tail.
Skeletal system: lobster
• a lobster has an exoskeleton.
An armor like outer shell.
• The exoskeleton of a lobster is
divided into segments, and
each performs specialized
functions.
• The cephalothorax consists of
the head and thorax, bears all
the limbs used in sensory
perception, movement
breathing, and the detection
and capture of prey.
• The abdomen is divided into
six segments that are
responsible for rapid
locomotion.
Skeletal system:
Hercules beetle
• The exoskeleton can
change color from green to
black whenever the
surrounding humidity rises.
• able to carry up to 850
times its own weight,
Skeletal System: human
• Under the skin of the
human body there is a
robust and flexible bone
structure known as the
skeletal system which
supports and protects the
body.
• It is made up of over 206
different bones and gives
the body its stature and
outward appearance.
Skeletal system: birds
• Compared with a mammal
or reptile skeleton, there
are many fewer bones in a
bird skeleton.
• In a bird skeleton, the
equivalent of the 1st and
5th fingers are gone, and
the 2nd is fused to the
third. The phalanges of the
3rd and 4th digits hold the
primary feathers.
Skeletal system: sponge
• likely first true
multicellular animal
life on Earth.
Skeletal system: moose
•
Bibliography for this ppt.
• Snakes:
http://teachit.acreekps.vic.edu.
au/animals/brown%20snak
e.htm
• lobster:
http://uk.encarta.msn.com/me
dia_121637893_761566931
_1_1/lobster_exoskeleton_
dismantled.html
• Beetle:
http://www.iop.org/News/Com
munity_News_Archive/2008
/img_full_28905.jpg
• 2nd beetle picture:
http://img.qj.net/uploads/articles
_module/115621/herculesbeetle-namurbelgium_qjgenth.jpg
• human:
http://www.contmediausa.com/s
hop/app/products/Human3D/
human3dskeletalsystem.html
• Bird:
http://www.birdwatchingbliss.com/bird-skeleton.html
Bibliography continued
• Sponge:
http://migration.wordp
ress.com/2007/07/02/
model-organisms-thesea-sponge/
• Moose:
http://commons.wikim
edia.org/wiki/File:Moo
se_Skeleton.jpg
Test questions
• 1. if animals are lacking a skeletal system,
how do they keep their shape?
• 2. What are bones made of?
• 3. How do bones grow?
• 4. What are the types of skeletal structure
Test answers
•
1. they have a hydrostatic skeleton - basically they are filled with fluid that moves
around to fill the parts where their muscles are relaxed when they squeeze it out of
another part - so a worm can squeeze itself skinny using circular muscles or use
longitudinal muscles to squeeze itself fat.
•
2. They are made of strong string material called Collagen.
•
3. Growth plates shrink causing the bone to grow.
•
4. Hydrostatic, exoskeleton, and endoskeleton.
….
• OK, so its not an
animal. But it’s a
skeleton so deal with
it!