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Transcript

Dolphin vs. human

Body Systems

By: Lily Sar

The Skeletal System

Human:

Ribs

Pelvis

Skull

Spine

Limbs

Dolphin:

skull

ribs

spine

pectoral fin

Comparison: The dolphin has no limbs, and only fins, however the fins contain no bones besides the pectoral fins which are similar to a human arm.

The Nervous System

Introduction

The digestive system

Human:

spinal cord

brain stem

nerves

cerebrum

brain

cerebrospinal fluids

Dolphin:

brain

cerebral fluids

nerves

melon

brain stem

Comparison: They are very similar, but dolphins also have the ability to send vibrations through water using their melon, and can use their nervous system to do that too!

After studying the human body, I had extra time to study other systems, so I began to wonder what a dolphin's systems look like compared to our own systems. I studied the skeletal, muscular, nervous, cardioascular, and digestive systems of the dolphin, then compared them to what I already knew of a human's same systems. Throughout this presentation is my results and the comparisons that came from them.

ENJOY

Human:

small intestine

large intestine

pancreas

liver

stomach

spleen

rectum

anus

gingiva

esophagus

Dolphin:

anus

liver

intestines

esophagus

stomach

Comparison: They have a very similar digestive systems, but dolphin's are in different shapes to fit their body.

The Cardiovascular system

Human:

heart

arteries

veins

Dolphin:

veins

arteries

heart

vessles

Comparison: The dolphin has almost the same elements of a cardiovascular system as a human.

The Muscular System

Human:

biceps

triceps

gluteals

quadriceps

abdomen

pectorals

trapezius

gastrocnemius

Dolphin:

spinalis

longissimus

semispinalis

biceps

triceps

epaxial

deltoid

rectus

Comparison: The dolphin's muscular system contains many more muscles for swimming than the human body, and includes the fins.

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