Shark Dissection

Front 1

What is the name of this shark?

Back 1

Squalus Acanthius

Front 2

Saggital Plane

Back 2

Left and Right

Front 3

Uterus

Back 3

Lower Organ where offspring are conceived

Front 4

Pericardial Cavity

Back 4

Layer of space formed between two serous tissues, holds heart and branching arteries

Front 5

Testes

Back 5

Holds sperm for male reproductive system

Front 6

Ovaries

Back 6

Two cream colored organs holding female eggs

Front 7

Heart

Back 7

Two halves atrium and ventricles

Front 8

Efferent Brachial Arteries

Back 8

Brings blood to fins and back to heart

Front 9

Atrium

Back 9

Smaller and function in forcing blood into ventricles

Front 10

Gill Rakers

Back 10

Increases surface area of gills for increased oxygen intake

Front 11

Ventricle

Back 11

Contracts blood to the rest of the body

Front 12

Gill Arches

Back 12

Made of cartilaginous arches that supports gills and gill rakers

Front 13

Nares

Back 13

Detects chemicals in the water

Front 14

Ampullae

Back 14

Allows the shark to detect prey by feeling vibrations

Front 15

Spiracles

Back 15

Openings on the head, allows water to pass through gills even when the mouth is closed

Front 16

Gill Slits

Back 16

Allows water to exit after passing over the gills, 5 count

Front 17

Lateral Line

Back 17

A pale line beginning at the pectoral fins and ending at the pelvic fins' small openings that open into the underlying lateral line canal, a sensory organ that detect water movement.

Front 18

Cloaca

Back 18

The digestive tracts exit and opening for the sex organs

Front 19

Claspers

Back 19

A finger like protruder that assists in sperm transferring during mating

Front 20

Myomers

Back 20

Muscle bundles of segmented muscles in the trunk and tail arranged in a zig zag pattern.

Front 21

Myosepta

Back 21

Where the muscle originates and inserts

Front 22

Pleuropitoneal Cavity

Back 22

Holds all organs in the abdominal cavity such as liver gallbladder stomach pancreas

Front 23

Gall Bladder

Back 23

Functions in storage and floatation has 3 lobes liver functions in the storage of bile secreted from the liver located within the smaller lobe of the liver

Front 24

Adductor Muscle

Back 24

A large muscle just caudal to the eye and is the main muscle in closing the jaw

Front 25

Esophagus

Back 25

Connects mouth to stomach

Front 26

Esophageal Papillae

Back 26

Moves food to the stomach

Front 27

Stomach

Back 27

J shaped organ has cardiac part and pyloric part functions in digestion

Front 28

Pyloric Sphyncter

Back 28

A muscular ring which opens and closes the stomach to the intestines

Front 29

Duodenum

Back 29

Receives bile from the gullbladder its right after the stomach

Front 30

Colon

Back 30

Absorbs water and salts from solid wastes before its stored in the rectum

Front 31

Illeum and Spiral Valve

Back 31

Absorbs nutrients like B12 and bile salts

Front 32

Rectum

Back 32

Where excretory matter is absorbed before disposal

Front 33

Rectal Gland

Back 33

Small organ that opens up into the rectum pumps blood through sharks body

Front 34

Spleen

Back 34

Creates blood and is a main part of the sharks immune system

Front 35

Pancreas

Back 35

Digestive gland that produces digestive enzymes and hormones

Front 36

Midsaggital Plane

Back 36

Divides into equal left and right halves

Front 37

Transverse Plane

Back 37

Divides upper and lower

Front 38

Frontal Plane

Back 38

Divides dorsal and ventral