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The Body Systems of Kangaroos

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Kendall Miller

on 11 March 2014

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Transcript of The Body Systems of Kangaroos

The Body Systems of Kangaroos
Works Cited

Wise, Marcus. "Re: Red Kangaroo." Weblog comment. N.p., 3 Apr. 2012. Web.

"Morphology of a Kangaroo." Visual Dictionary Online. Merriam-Webster, n.d. Web.


Kangaroos also have...

-small skulls that are very delicate, causing death to be very common if one receives a blow to the head
The Integumentary System
Kangaroos have..

-thick, coarse hair (fur) with a wooly texture to keep and maintain body temperature

-fur is used as insulation against heat and cold
Kangaroos also have...

-pinna, which are the
movable outer portion of the ear made of cartilage and located on the side of the head to capture sounds

-claws, which are the pointy, sharp structure kangaroos use to scratch and claw when fighting or often for grooming

-large, thick tail that helps keep equilibrium when jumping


The Skeletal System
Kangaroos have evolved over time, allowing them to cover a larger distance at faster speeds for protection from predators.
Kangaroos most known outer structure is their pouch
-the pouch is located on the females stomach, which includes the breasts, and acts as shelter for her newborn, as well as the ability to allow for continuous development
Kangaroos have...

-long, muscular thighs
-light, elongated shin muscles
-adapted ankle to prevent the foot from rotating/ twisting
-thick, heavy tail

Works Cited
"Morphology of a Kangaroo." Visual Dictionary Online. Merriam-Webster, n.d. Web.

"Kangaroos." Natural History Collections: Kangaroos. The University of Edinburgh, n.d. Web. 5 Feb. 2014.
"Mammal Anatomy: An Illustrated Guide." Marshall Cavendish, n.d. Web. 5 Feb. 2014.
The Muscular System
Kangaroo's system is dominated by long tendons and powerful hind leg muscles to allow for hopping at high speeds, for a long period of time, without using much energy. They can also use this strength as self defense and for fighting/hunting.
They also have...
-a thick, muscular tail that can support their entire body weight
Kangaroo's Tendons
Their tendons in their hind legs and tail are huge. When kangaroos jump and land, their tendons absorb energy and stretch. As soon as they begin to jump again, the tendons go back to their original length and allow for the spring back into the air.
Works Cited
"Mammal Anatomy: An Illustrated Guide." Marshall Cavendish, n.d. Web. 5 Feb. 2014.
The Nervous System
Kangaroos have...
-spinal cord
-network of small vessels to carry blood around the brain, called microcirculation
-rather than a corpus callosum, has fasciculus aberrans that connect the left and right brain hemispheres (different from most other mammals)
The Development
Unlike most mammals, kangaroos are born at a very early stage in the development of their nervous system. After 33 days in the womb, kangaroos can only breath and have enough muscular ability to move themselves to the site of birth, which they stay for 6 more months to fully develop. However, after fully developed kangaroos have excellent sight and hearing, due to their somewhat nocturnal habits.
Kangaroos also have...
well developed auditory nerves and the ability to rotate their ears to pinpoint sound

Works Cited
Wise, Marcus. "Re; Red Kangaroo." Weblog comment. N.p., 3 Apr. 2012. Web.
The Respiratory System
Kangaroos have a similar system to humans as their nose, mouth, and lungs are all connected. They also have a diaphragm that expands to bring air into the lungs and contrasts to expel the air.
Kangaroos use their respiratory system as a benefit while hopping. When the kangaroo hops and their feet leave the ground, air is pushed out. Then, as they begin to land, the lungs fill with air once again. This continuous process makes kangaroos especially efficient in producing energy.
Works Cited
Wise, Marcus. "Re; Red Kangaroo." Weblog comment. N.p., 3 Apr. 2012. Web.
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