exam 3 models

Exam 3 models

Phylum: porifera

osculum

Budding

Blue: ostium

spongoceol

Hydra

budding

tentecles

mouth

Gastrovascular cavity (cream color)

ovary

testies

Epidermis(green)

Mesoglea layer (red)foot

budding

Bud forming

gonads mouth tentecles

gastrodermis

Epidermis(blue)

gastrodermis

Mesoglea layer

epidermis

nematocyst

Nucleus

nematocyl

filiament

Gross anatomy of Planaria

oracles

Eye spots

CerebralGanglion(like brain)

Ovary (pink)

Testies (blue)

Excretory ducts (green lines), connect to flame cells

Gastrodermis/Gastrovascular cavity

Parencyma

tegument

Circular muscle

Longitudinal muscle

Yolk gland

Lateral nerve

Transverse nerve

Parenchyma (pink)

pharynx

Oviduct (red line)

Planaria (cross section)

Oviduct (yellow)

Testies (blue)

Gastrovascular Cavity(red)

phayrnx

Cell: flame cell

Excretory pore

Circular muscleLongitudinal muscle

tegument

Gastorvascularcavity

Brandches: divertum

Clonorchis sinensis common name: human liver fluke

Oral sucker

Ventral sucker

mouth

pharynx

esophagus

Cerebral ganglia(white)

Intestinal ceca(red)

Clonorchiscommon name: human liver fluke

class: trematoda

uterus Yolk gland

Seminalreceptacle

ovary

Excretory bladder

Excretory pore

Testies(blue)

Taenia solium

*4 suckers + hooks on top

*little bit rostellum (elevation)

Taenia saginatus

*no hooks

*no rostellum

Cysticercus cuticceroeggs

Immature proglottid

testies

uterus

Yolk gland

ovary

Genital pore

Nerve (yellow)ExcretoryCanal (blue)

Mature proglottids

Gravid proglottids(uterus is filled with eggs)

“rice grain”worms

Class:cestoda

Mature proglottids

Yolk gland

ovaries

testies

uterus

Excretory pore

Circlitory & circularmuscles

parenchyma

Gravid proglottids(ripe)

Most of proglottids Become uterus

Testies & ovaries vanish

Class: cestoda