COMPARATIVE VERTEBRATE ANATOMY

LAB TERM CHECKLIST  - WEEK 1

The terms listed below are those for which you will be held responsible. Additionally, you will also need to know the associated taxonomy, any relevant homologies and the function of each structure.

PHYLUM HEMICHORDATA    "Acorn Worms"

            Collar   Trunk    External      Gill slits     Proboscis       Pharynx

PHYLUM CHORDATA

    SUBPHYLUM UROCHORDATA Tunicates 

  Ascidian Tadpole (Slides; w.m.)

            Notochord     Nerve Cord        Gill Slits

Tunicates - Adult

            Tunic       Pharynx          Excurrent Siphon          Incurrent Siphon         Atrium            Gonad

PHYLUM CHORDATA

     SUBPHYLUM CEPHALOCHORDATA

Lancelets - Amphioxus (Whole, Preserved)

            Median Dorsal Fin           Caudal Fin           Gonads             Ventral Fin              Atriopore             Rostrum               Buccal Cirri

Myomeres           Myosepta

Lancelets - Amphioxus (Whole Mount, Cleared & Stained)

        Endostyle         Oral Hood              Vestibule    Fin Rays         Notochord             Nerve Cord               Wheel Organ               Velum          Mouth

        Velar Tentacles      Pharynx       Atrium              Gill Slits=Pharyngeal slits      Intestine         Hepatic Diverticulum=midgut cecum

Lancelets - Amphioxus (Cross-sections)

        Epidermis           Dorsal Fin               Myomeres    Nerve Cord  Notochord            Vestibule           Buccal Cirri            Metapleural folds            Pharynx

        Endostyle          Caudal Fin     Atrium           Gonads        Hepatic Diverticulum         Coelom      Intestine            Ventral Fin

        Epipharyngeal Groove=epibranchial groove

PHYLUM CHORDATA

    SUBPHYLUM VERTEBRATA

        Class Cephalaspidomorpha

Lamprey - External Morphology

            Head             Trunk  Cloacal Aperture=urogenital papilla       Buccal Funnel       Buccal Papillae     Anterior Dorsal Fin     Horny Teeth         Nostril

            Posterior              Dorsal fins        Pineal Organ=pineal gland       Caudal Fin        Lateral Line        Myomeres       External  Gill Slits         Tail

            Eyes

Lamprey - Sagittal Section

        Myomeres             Myosepta              Brain         Spinal Cord        Nostril        Pineal Organ=pineal gland   Olfactory Sac         Cranial Cartilages

       Nasohypophyseal  Pouch=hypophyseal pouch      Notochord            Dorsal Aorta          Buccal Funnel    Mouth              Tongue               Annular Cartilage

       Pharynx              Lingual Cartilage              Lingual Muscle      Esophagus            Branchial Tube           Internal Gill Slits          Velum           Ventral Aorta 

       Inferior (=internal)               Jugular Vein        Ventricle                  Branchial Basket Cartilages

Lamprey - Cross section (through eyes)

            Pharynx            Pharyngeal Glands            Cranial Cartilage              Retina         Ocular (eye) Muscles                Lingual Cartilage         Eyes

            Olfactory Sac            Nasohypophyseal  Pouch=hypophyseal pouch    Lens              Pineal Organ            Carotid Arteries    Myomeres

Lamprey - Cross Section (through Branchial Tube)

            Spinal Cord        Notochord            Anterior Cardinal Veins     Dorsal Aorta          Esophagus              Branchial Tube     Gill Pouches     Gill Lamellae

           Ventral Aorta       Lingual Muscle       Inferior Jugular Vein

Lamprey - Cross Section (through trunk)

            Intestine             Gonad              Posterior Cardinal Veins               Liver

Lamprey - Cross Section (through tail)

            Fin Rays          Caudal Artery           Caudal Vein

Lamprey - Skeleton

            Skull            Notochord            Branchial Basket     Tongue Support=piston cartilage of tongue

Ammocoete Larva   (Slides-Whole Mount and Cross-sections)

            Dorsal Fin           Caudal Fin                 Spinal Cord        Eyes=eyespot                Nostril   Auditory Vesicles   Notochord              Oral Hood

           Buccal Cavity=oral cavity         Liver         Velar Folds=velum   Gill Pouches   Pharynx        Anus     Subpharyngeal Gland        Esophagus       Intestine

             Gill Lamellae=gill filaments         Heart          Oral Papillae=oral tentacles

 

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