Frog Dissection Flashcards

Front 1

Q: What sex is this frog?

Back 1

male

Front 2

Q: What is the scientific name of the frog you studied?

Back 2

Rana pipiens

Front 3

Q: What are two things you can look for externally to tell if the frog is male?

Back 3

vocal sacs and swollen thumbpads

Front 4

Q: toward the head region

Back 4

Anterior

Front 5

Q: toward the hind region

Back 5

Posterior

Front 6

Q: the back surface

Back 6

Dorsal

Front 7

Q: toward or on or near the belly (front of a primate or lower surface of a lower animal)

Back 7

Ventral

Front 8

Q: the membrane of the ear that vibrates to transmit sound

Back 8

tympanic membrane

Front 9

Q: openings into the nasal cavity, both internally and externally, in the head of a vertebrate

Back 9

nares

Front 10

Q: a muscular tube that connects the mouth to the stomach

Back 10

esophagus

Front 11

Q: the valve between the stomach and the small intestine

Back 11

pyloric valve

Front 12

Q: responsible for most chemical digestion and absorption of nutrients

Back 12

small intestine

Front 13

Q: organ that absorbs water from undigested material

Back 13

large intestine

Front 14

Q: dark, marble like organ usually near the stomach that produces, stores, and eliminates blood cells

Back 14

spleen

Front 15

Q: two long dark excretory organs that lie along back; they filter wastes (especially urea) from the blood and excrete them in urine

Back 15

kidneys

Front 16

Q: very obvious yellow stringy structures that provide warmth and store nutrients for hibernation and production of sex cells

Back 16

fat bodies

Front 17

Q: opening through which air enters trachea

Back 17

Glottis

Front 18

Q: two bumps in roof of mouth used to prevent prey from escaping

Back 18

Vomerine Teeth

Front 19

Q: stores bile until needed for digestion

Back 19

gall bladder

Front 20

Q: region in the back of the frog that allows passage of eggs or sperm and waste products of digestive and urinary systems

Back 20

cloaca

Front 21

Q: large, cream colored, muscular j-shaped organ that helps in mechanical and chemical digestion of food

Back 21

stomach

Front 22

Q: two stretchy grey organs in the chest that have lots of blood vessels since they are where blood picks up oxygen and loses carbon dioxide

Back 22

lungs

Front 23

Q: large blood vessel along the back that supplies oxygenated blood to several body parts

Back 23

dorsal aorta

Front 24

Q: a large vein that returns blood from lower body regions to the heart

Back 24

inferior (posterior) vena cava

Front 25

Q: two large veins that return blood from the upper body regions to the heart

Back 25

left and right superior (anterior) vena cava

Front 26

Q: major arterial branches from the conus arteriosus that each divide into 3 branches to carry oxygenated blood to body tissues

Back 26

left and right truncus arteriosus

Front 27

Q: arterial branch from the truncus arteriosus that supplies oxygenated blood to the head region

Back 27

carotid arch

Front 28

Q: middle arterial branch from the truncus arteriosus that loops around to meet the one from the other side, forming the dorsal aorta and supplying the forelimbs and lower body region with oxygenated blood

Back 28

systemic (aortic) arch

Front 29

Q: lower arterial branch from the truncus arteriosus which carries deoxygenated blood to the lungs and skin so it can pick up more oxygen

Back 29

pulmocutaneous arch

Front 30

Q: artery that branches off of the dorsal aorta to supply the stomach, liver, pancreas, intestines, spleen

Back 30

coeliacomesenteric artery

Front 31

Q: coeliacomesenteric artery branches to give two arteries - this one splits to give two gastric arteries that supply the stomach, liver and pancreas

Back 31

coeliac artery

Front 32

Q: coeliacomesenteric artery branches to give two arteries - this one supplies the intestines and spleen

Back 32

mesenteric artery

Front 33

Q: some of the arteries that supply the leg include

Back 33

iliac artery, sciatic artery, femoral artery

Front 34

Q: this vein lies along the belly; it was attached to the body wall when you opened the frog

Back 34

ventral abdominal vein

Front 35

Back 35

amplexus

Front 36

Back 36

1. female
2. ovary
3. oviduct

Front 37

Back 37

1. external nare
2. tympanic membrane

Front 38

Back 38

1. heart
2. right atrium
3. left atrium
4. ventricle

Front 39

Back 39

1. heart
2. small intestine
3. large intestine

Front 40

Back 40

nictitating membrane

Front 41

Back 41

1. gullet
2. glottis

Front 42

Back 42

1. dorsal
2. chromatophores

Front 43

Back 43

gall bladder

Front 44

Back 44

1. heart
2. liver
3. small intestine
4. stomach
5. fat bodies
6. ventral abdominal vein

Front 45

Back 45

1. gall bladder
2. stomach
3. large intestine

Front 46

Back 46

1. male
2. vestigial oviduct
3. testis
4. swollen thumbpad

Front 47

Back 47

1. internal nare
2. eye orbit
3. tongue
4. vomerine tooth
5. other eye orbit (oops!)
6. eustachian tube opening
7. mandibular jaw

Front 48

Back 48

1. small intestine
2. pyloric valve
3. stomach
4. liver

Front 49

Back 49

1. liver
2. testis
3. kidney
4. vestigial oviduct
5. urinary bladder

Front 50

Back 50

ventral

Front 51

Q: clear, third eyelid the protects the eye from debris, permits the frog to see underwater, and keeps the eye from drying out on land

Back 51

nictitating membrane

Front 52

Q: a tube that runs between the tympanic membrane and the mouth cavity; important for balance and pressure regulation

Back 52

eustachian tube

Front 53

Q: dark organ made up of 3-5 lobes which have many functions like detoxifying substances for safe excretion and producing bile for breaking up fats

Back 53

liver

Front 54

Q: folds in the stomach that allow it to expand and hold more food

Back 54

rugae

Front 55

Q: very thin, almost transparent tissue that holds abdominal organs like the small intestine and spleen in place; it has lots of blood vessels running through it

Back 55

mesentery

Front 56

Q: thin grey band of tissue that lies between the stomach and small intestine; it produces enzymes for digestion of food and hormones like insulin for regulation of blood sugar

Back 56

pancreas

Front 57

Q: dark grey, marble-like organ that lies in the mesentery and has a role in the immune system; it filters blood of bacteria, it destroys old RBCs and platelets, and it produces and stores RBCs, lymphocytes, and antibodies for when they're needed

Back 57

spleen

Front 58

Q: tube that carries urine from the kidney to the urinary bladder

Back 58

ureter

Front 59

Q: thin walled sac that stores urine until it is released into the cloaca and out the cloacal opening

Back 59

urinary bladder

Front 60

Q: membrane that surrounds and protects the heart

Back 60

pericardium

Front 61

Q: part of brain responsible for intellect, instinct and memory

Back 61

cerebrum

Front 62

Q: part of the brain responsible for balance and muscle coordination

Back 62

cerebellum

Front 63

Q: part of the brain responsible for life support (vital) functions like breathing, heartbeat, etc

Back 63

medulla oblongata

Front 64

Q: part of brain responsible for sight/vision

Back 64

optic lobe

Front 65

Q: part of brain responsible for the sense of smell

Back 65

olfactory lobe

Front 66

Q: What are the 2 main ways that frogs breathe?

Back 66

1. through their skin
2. using their mouth and lungs

Front 67

Back 67

1. olfactory lobe
2. cerebrum
3. optic lobe
4. cerebellum
5. medulla oblongata
6. spinal cord