Shark DissectionShark Dissection

By:By:Jonathan ResendizJonathan Resendiz

NouChi ChangNouChi ChangBilly Brent Billy Brent

Circulatory System Circulatory System

• SummarySummary

• Pictures Pictures

• FunctionFunction

Nervous System Nervous System

Circulatory System Circulatory System Summary Summary

• Circulatory system makes sure that Circulatory system makes sure that blood is pumped throughout the blood is pumped throughout the sharks bodysharks body

• Their heart is located near its headTheir heart is located near its head

• Sharks blood is pumped through Sharks blood is pumped through arteries and capillaries arteries and capillaries

Circulatory System PicturesCirculatory System Pictures

1.1. Internal Carotid Artery  Internal Carotid Artery  2.2. Paired Dorsal Aortae  Paired Dorsal Aortae  3.3. Efferent Branchial Arteries Efferent Branchial Arteries 4.4. Dorsal Aorta  Dorsal Aorta  5.5. Subcalvian Arteries Subcalvian Arteries 6.6. Posterior Cardinal Sinus  Posterior Cardinal Sinus  7.7. Seliac Artery Seliac Artery 8.8. Posterior Cardinal Veins Posterior Cardinal Veins 9.9. Anterior Mesenteric Artery  Anterior Mesenteric Artery  10.10.Lienogastric Artery  Lienogastric Artery  11.11.Posterior Mesenteric Posterior Mesenteric

Artery Artery 12.12.Rectal Gland  Rectal Gland  13.13.Iliac Arteries  Iliac Arteries 

Circulatory System Circulatory System FunctionsFunctions

• Have a two chambered heartHave a two chambered heart

• Pumps blood throughout the bodyPumps blood throughout the body

• Makes sure blood is oxygenated Makes sure blood is oxygenated

• Arteries and veins work together in Arteries and veins work together in order to supply blood throughout the order to supply blood throughout the sharks bodysharks body

Nervous SystemNervous System

• SummarySummary

• Pictures Pictures

• FunctionFunction

Skeleton SystemSkeleton System

Nervous System SummaryNervous System Summary

• Shark is made up of:Shark is made up of:a.a. BrainBrainb.b. Spinal CordSpinal Cordc.c. Peripheral Nervous System Peripheral Nervous System d.d. Sense organs Sense organs • Cranial Nerves: Nerves that carry Cranial Nerves: Nerves that carry

impulses to the brain, nerves that impulses to the brain, nerves that control senses of sharks: smell, touch, control senses of sharks: smell, touch, hear, etc.hear, etc.

Nervous System PicturesNervous System Pictures

Nervous System FunctionNervous System Function

• Controls the sharks behaviorControls the sharks behavior

• Controls sharks senses: Sight, touch, Controls sharks senses: Sight, touch, hearing, smell, tastehearing, smell, taste

Skeleton SystemSkeleton System

• SummarySummary

• PicturesPictures

• FunctionFunction

Digestive SystemDigestive System

Skeleton SummarySkeleton Summary

• The skeleton of the shark is not The skeleton of the shark is not made of bones, it is made of made of bones, it is made of cartilage extremely light to help with cartilage extremely light to help with speedspeed

Skeleton System LabelsSkeleton System Labels

rostrum

OrbitGill Arches

Fin cartilageRib cartilage

Vertabrate

FunctionFunction

• The orbit is used to hold the eye in placeThe orbit is used to hold the eye in place

• Rostrum used to take in water to flow Rostrum used to take in water to flow over the gills and make the shark breath over the gills and make the shark breath

• Gill arches are to keep the gills open for Gill arches are to keep the gills open for water to be released water to be released

• Fin cartilage is used to help keep the Fin cartilage is used to help keep the shark floatingshark floating

Digestive System Digestive System

• SummarySummary

• LabelsLabels

• FunctionFunction

• External System External System

Digestive SummaryDigestive Summary

• The shark digestive system is used to The shark digestive system is used to process food and pass the nutrients process food and pass the nutrients through its body.through its body.

Digestive System LabelsDigestive System Labels

Digestive System FunctionsDigestive System Functions

• Mouth is used to take in foodMouth is used to take in food• Esophagus is used to transport food to Esophagus is used to transport food to

the stomachthe stomach• Stomach is used to break down food in Stomach is used to break down food in

to nutrients to nutrients • Liver is used to help the shark float and Liver is used to help the shark float and

take out poisonous toxins from the foodtake out poisonous toxins from the food• Intestines spreads nutrients around body Intestines spreads nutrients around body

and waste out of the bodyand waste out of the body

ExternalExternal

• Summary Summary

• Photo Photo

• Labels Labels

• FunctionsFunctions

Muscular System Muscular System

External Summary External Summary

• Cut the dorsal sineCut the dorsal sine

• Then we cut a straight line down the Then we cut a straight line down the bellybelly

• Cut again under the mouth horizontalCut again under the mouth horizontal

• Anther cut before the anal fins Anther cut before the anal fins

• Then we open wide Then we open wide

External PhotosExternal Photos

External LabelsExternal Labels

Dorsal fin

Nostril

Pectoral Fin

Gills

Second Dorsal Fin

Caudal Fins

The Eye

Anal Fins

External Function External Function

• The Body is rough and feel with lots of The Body is rough and feel with lots of teeth like scale.teeth like scale.

• The nostril is only use to breath The nostril is only use to breath

• The Gills are used to breath The Gills are used to breath

• Pectoral Fins are used to turn left and Pectoral Fins are used to turn left and rightright

• The eye are used to see The eye are used to see

• The Fins are mainly used to steer The Fins are mainly used to steer

Muscular System Muscular System

• SummarySummary

• Labels Labels

• Function Function

Muscular System Summary Muscular System Summary

• The muscular system is the system for The muscular system is the system for strength and push that the shark has.strength and push that the shark has.

• The system helps move the tail for the The system helps move the tail for the sharks speed and shape turns. sharks speed and shape turns.

• There are muscular parts like: There are muscular parts like: Branchiomeric Muscles, Axial Muscles, Branchiomeric Muscles, Axial Muscles, Appendicular Muscles, Eye Muscles Appendicular Muscles, Eye Muscles

Muscle Label Muscle Label

The Muscular System The Muscular System Function Function • Preorbitalis –It helps in opening the jaw. Preorbitalis –It helps in opening the jaw. • Adductor Mandibulae –are the main muscles in closing the Adductor Mandibulae –are the main muscles in closing the

jaw. jaw. • Levator Palatoquadrati – it helps raise the jaw. Levator Palatoquadrati – it helps raise the jaw. • Intermandibularis –it assists in jaw closing. Intermandibularis –it assists in jaw closing. • Levator Hyomandibulae –this muscle raises the jaw. Levator Hyomandibulae –this muscle raises the jaw. • Hyoid Constrictor – it acts to constrict the gill cavity. Hyoid Constrictor – it acts to constrict the gill cavity. • Ventral Constrictors –These also constrict the gill cavities. Ventral Constrictors –These also constrict the gill cavities. • Dorsal Constrictors –These also constrict the gill cavities. Dorsal Constrictors –These also constrict the gill cavities. • Septal Constrictors – Constricts the caudal gill cavity. Septal Constrictors – Constricts the caudal gill cavity. • Pectoral Levators – they raise the pectoral fin. Pectoral Levators – they raise the pectoral fin. • Cucullaris – this muscle moves the pectoral fin dorsally and Cucullaris – this muscle moves the pectoral fin dorsally and

crainally. crainally.