Practical 2 Vocab

Front 1

primitive thin walled air pockets that extend into the abdomen of arthropods

Back 1

book lungs

Front 2

organs of excretory system of arthropods, associated w/ antennae

Back 2

green glands

Front 3

organs of excretory system of arthropods, associated w/ intestine

Back 3

Malphigian tubules

Front 4

consist of 15k to 30k lenses, especially good at detecting motion

Back 4

compound eyes

Front 5

often modified to detect chemical signals in arthropods

Back 5

antennae

Front 6

outward appearance of immature stages is similar

Back 6

incomplete metamorphasis

Front 7

in incomplete metamorphasis immature organisms are called. w/o wings or mature reproductive system

Back 7

nymphs

Front 8

nymphs may contain multiple of these, immature molt events

Back 8

instars

Front 9

organism proceeds thru distinct stages of growth, differentiation and reproduction

Back 9

complete metamorphasis

Front 10

club-like balance organs of the order diptera

Back 10

halteres

Front 11

terminal segment of female grasshoppers, for placing fertilized eggs in ideal environment

Back 11

ovipositor

Front 12

opening of water-vascular system. a circle of small pores

Back 12

madreporite

Front 13

used to accomplish respiration in echinoderms

Back 13

dermal branchia

Front 14

tenticle-like projections of the water-vascular system in echinoderms

Back 14

tube feet

Front 15

the early developmental stages of echinoderms is termed _____ and is similar to that of vertebrates

Back 15

deuterostome

Front 16

chewing structure found in echinoidea

Back 16

aristotle's lantern

Front 17

tiny pincer-like appendages of echinodermata

Back 17

pedicellaria

Front 18

hard structure in echinoderms that protects the tube feet

Back 18

ambulacral groove

Front 19

digestive glands of starfish

Back 19

pyloric caecum

Front 20

dorsal to tube feet in starfish

Back 20

ampullae

Front 21

2/5 characteristics of chordates that phylum hemichordata posses

Back 21

pharyngeal gill slits, dorsal hollow nerve chord

Front 22

5 characteristics of chordates

Back 22

1. pharyngeal gill slits
2. post-anal tail
3. dorsal hollow nerve chord
4. endostyle
5. notochord

Front 23

endostyle is a portion of the floor of the pharynx and may develop into a ______, which secretes certain hormones

Back 23

thyroid gland

Front 24

subdivision of skeleton in vertebrates that includes brain case, vertebrae, ribs and sternum

Back 24

axial skeleton

Front 25

subdivision of skeleton in vertebrates that includes pectoral girdle, pelvic girdle and bones of the fins or fish or limbs of tetrapods

Back 25

appendicular skeleton

Front 26

thousands of small units which make up the kidney

Back 26

nephrons

Front 27

part of gills that filters food from the water passing thru

Back 27

gill rakers

Front 28

male chondrichthyes posses these extensions to the pelvic fins for fertilization

Back 28

claspers

Front 29

main coordinating center for all nervous functions with olfactory lobe (fish)

Back 29

cerebrum

Front 30

coordinates visual sensory funtions with its optic lobe (fish)

Back 30

midbrain

Front 31

located in ventral midbrain, connected to pituitary gland, help control body metabolism & growth

Back 31

hypothalamus

Front 32

contains cerebellum and medulla oblongata in fish

Back 32

hindbrain

Front 33

regulates basic body functions such as heart rate, blood pressure, breathing, and digestion

Back 33

medulla oblongata

Front 34

controls internal organs and does not require "thought"

Back 34

sympathetic nervous system

Front 35

in fishes and some salamanders, a _____ detects vibrations in the water surrounding the animal and consists of a fluid filled canal w/ pores

Back 35

lateral-line system

Front 36

help fishes to maintain the correct position in the water profile

Back 36

air bladder

Front 37

cover the gills and may be moved in and out to facilitate the movement of water over the gills

Back 37

opercula

Front 38

unique type of scale that covers surface of sharks

Back 38

placoid scales

Front 39

vertebrates w/ 4 legs

Back 39

tetrapods

Front 40

frog sex position

Back 40

amplexus

Front 41

first artery coming from heart of frog

Back 41

truncus arteriosus

Front 42

gathers blood from the hepatic vein, gastric vein, and uringential veins

Back 42

caudal vena cava

Front 43

retention of larval characteristics

Back 43

neoteny

Front 44

skull type of turtles or testudines

Back 44

anapsid

Front 45

skull type of snakes, lizards and crocodiles (squamata, crocodilia)

Back 45

diapsid

Front 46

organ in snakes located in the nose which detects faint odors of prey

Back 46

Jacobson's organ

Front 47

protected areas in which some reptiles hibernate

Back 47

hibernacula

Front 48

supplies nutrition to the embryo

Back 48

yolk sac

Front 49

holds an aquatic environment around the embryo

Back 49

amnion

Front 50

exchanges gasses w/ outside environment acting as a lung for the embryo

Back 50

chorion

Front 51

brings blood to the chorion and also holds the excretory products

Back 51

allantois

Front 52

dorsal shell of testudines

Back 52

carapace

Front 53

ventral shell of testudines

Back 53

plastron

Front 54

male copulatory organ of some snakes

Back 54

hemipenes

Front 55

act as velcro to hold bird feathers together

Back 55

barbules

Front 56

glandular stomach used in chemical digestion in birds

Back 56

proventriculus

Front 57

helpless, less developed bird young

Back 57

altricial

Front 58

more developed bird babies

Back 58

precocial

Front 59

blind pouches filled w/ cellulose digesting bacteria

Back 59

cecum

Front 60

skull type of mammals

Back 60

synapsid

Front 61

external ear of mammals

Back 61

pinnae

Front 62

glands associated w/ hair follicles in mammals

Back 62

sebaceous glands

Front 63

microscopic air pockets in mammal lugns

Back 63

alveoli

Front 64

cavity in mammals containing lungs and heart

Back 64

thoracic cavity

Front 65

cavity in mammals containing gut and other organs

Back 65

abdominal cavity

Front 66

whiskers

Back 66

vibrissae (singular = vibrissa)

Front 67

nostrils

Back 67

external nares