Zoology Lab Exam: Annelids-Arthropods

Arachnida

This is a member of the class…

Pedipalps

Arrow A indicates which appendage?

Cephalothorax

Arrow B indicts which body region?

Chlicera

Arrow C indicates which appendage?

spinnerets

….. are structures used to spin silk

Lophophore

Brachipods use a …… to collct food

antenna

Members of the Chelicerata lack …….

Onycophora

Velvet worms belong to the phylum

Merostomota

This is a member of the class….

Cehlicera

Arrow D indicates which appendage?

Genital Operculum or Abdomen

Arrow E indicates which body region?

Telson

Arrow F indicates which structure?

book gills

These organisms use …. for respiration

pedipalps

Males of this species use which appendage to transfer a spermatophore to the female?

Setae

The small hair-like structures found pretty much all over the body are

lophophore

What is this structure?

Ectoprocta and Brachiopods

What Minor Phyla are Lophophores present in?

Phylum Onychophora and Phylum Tardigrada

What Minor Phyla are metameric?

corona

What is this structure of a rotifer?

Gastropoda

This organism belongs to the class…

Genital Pore

The opening indicated by arrow A is the

Reproduction

The structure of arrow A is for

Pneumostone

The opening inidicated by arrow B is the

locomotion

In Gastropoda, the foot is primarily used for

8

Chitons have ….. overlapping shells

shell production

The primary function of the mantle is for

open

In clams and snails, their circulatory systems are

Posterior Abductor

The scar inidicated by arrow C is the

Posterior foot retractors

The scar indicated by arrow D is

The structure indicated by arrow E is the

Bivalvia

This is a member of the class

radula

The rasping structure used for feeding is the

Spire

What is the entire twisting portion called (arrow F)

Operculum

What is the covering of this opening called?

Scaphapoda

Tusk shells belong to the class

The …….. is a tube that runs through the brain and along and anterior to the digestive gland (liver).

Posterior aorta

Blood flows from the systemic hear through the …. to get to the mantle arteries

Cephalic

The brain is surroundd by the ….. cartilage

Arms

Arrow A indicates which appendages?

Peristomial

The inner membrane that surrounds the beak is the ….. membrane

Pallial Cartilage

Arrow B indicates which ridge-like structure

Radula

The rasping structure inside the buccal bulb is the

Chromatophores

The purplish spots on the mantle are

deoxygenated

The affarent branchial artery crries …. blood

Posterior vena cava

Arrow C indicates which structure?

rectum

The ink sac is attached to the

branchial heart

Blood from the mantle veins goes to the

Pharynx

What structure is indicated by arrow A

Esophagus

What is the tube-like structure ventral to that indicated by arrow A

longitudinal muscle

Which muscle layer is indicated by arrow B?

Circular Muscle

Which muscle layer is external to that indicated by arrow B?

Septum

What is the structure indicated by arrow C?

Coelem

What is the space next to the structure C?

seminal vesicles

What is the structure indicated by arrow D

Reproductive

To which body system does this structure (Arrow D) belong?

Testes

Materials stored in the structure indicated by arrow D are produced in which structure?

crop

What is the structure indicated by arrow E? (the arrow is in the lumen of the structure)

gizzard

What structure is immediately posterior to that indicated by arrow E

Digestive

The crop and gizzard are apart of which body system?

Errantia

The marine clam worms belongs to the class

Sedentaria

The figure below is a member of which class?

closed

Earthworms have what kind of circulatory system?

Parapodia

The appendages along the sides of marine worms are called

open circulation

in this type of circulation, blood is not inside of blood vessels and is pumped into a cavity, called the hemocoel.

closed circulation

in this type of circulation, blood is inside of vessels seperate from the internal fluid in the body.

open system

What circulatory system do crayfish have?

Gastric Mill

What does the image show?

stomache

Where is the Gastric Mill located?

radula

What is this a microscopic view of?