Sea Lamprey DissectionSea Lamprey DissectionPetromyzon marinus

Head Dissector1.acquire tray & specimen; prep for specimen dissection2.incisions with direction after conferring with team

members3.identification & tagging of required structures4.assist with clean up of table and materials (cadaver &

tissue disposal)

Assistant Dissector1.assist with prep & organization of tags/labels2.assist with determining incision locations3.“hand off” of required tools from the dissecting kit4.assist with reading of lab procedures & specific organ

system directions5.assist with clean up of table and materials (cadaver &

tissue disposal)

MAJOR duties of various TEAM Members!!MAJOR duties of various TEAM Members!!

MAJOR duties of MAJOR duties of various TEAM Members!!various TEAM Members!!ReaderReader

1.read lab procedures & specific organ system directions2.keep field guide, lab papers, computer and table dry & clean3.assist with reading of lab procedures & specific organ system directions4.assist with clean up of table and materials (soap, rinse, & thorough drying of tray & table - including sink)

Clean Up1.assist with prep & organization of tags/labels2.assist with reading of lab procedures & specific organ system directions3.assist with clean up of table and materials (soap, rinse, & thorough drying of dissecting kit instruments)

External Anatomy of the External Anatomy of the LampreyLamprey

CHECKPOINT #1 – External Anatomy

External AnatomyExternal Anatomy

Internal Anatomy of the Internal Anatomy of the LampreyLamprey

CHECKPOINT #2 – Internal Anatomy

Internal AnatomyInternal Anatomy

Internal AnatomyInternal Anatomy

GonadsGonads

ad - anterior dorsal cartilage an - annular cartilageau – auricle bd – bile ductbp’ - basal plate br – braincd - cardinal vein d.ao - dorsal aortadm - dorsal muscles ea - external gill apertureft - fibrous tissue gr - groove canalhp - basal plate to fontanelle hv - hepatic veinI – integument i.ju - inferior jugular veinint – intestine ju – jugularlg - lingual cartilage lr – liverm - buccal cavity mv - median ventral cartilagemy - spinal cord na - olfactory sacna‘ - pituitary pouch na'‘ - nasal aperturena.c - nasal capsule nc – notochordn.ca - spinal canal oc - cranial roofoes – gullet o.f - buccal funnelov – ovary pc – pericardiumpd - posterior dorsal cartilage pmt - protractor muscle of tonguermt - retractor of tongue rt - respiratory tubess - lymph sinus sv - sinus venosust – tongue v – ventriclev.ao - ventral aorta vl – velumvm - ventral muscles

CHECKPOINT #3 – CLEAN UP!!