Exam 4: Animal Behavior Flashcards
what is the site of gas exchange?
thin, moist surface (epithelium)
what is the purpose of the respiratory system?
gas exchange
what does the site of gas exchange consist of?
capillary beds and a barrier-forming concentration gradient
what are the concentrations on each end of the barrier-forming concentration gradient?
one area of high oxygen and carbon dioxide
one area of low oxygen and carbon dioxide
which animals have gills?
fish and some amphibians
how much of the air for aquatic animals is oxygen?
21%
LOOK AT GILL STRUCTURE IN NOTES!!!
LOOK AT GILL STRUCTURE IN NOTES!!!
How many pairs of gills are in fish? amphibians?
5 pairs
3 pairs
what kind of blood runs through the gills?
deoxygenated blood
where does blood with carbon dioxide enter the gills?
back end of gill region
where does water with oxygen enter the gills?
front end of gills region
how long does oxygen diffuse?
as long as there is a gradient
LOOK AT FISH GILLS DIAGRAM IN NOTES!!!
LOOK AT FISH GILLS DIAGRAM IN NOTES!!!
what concentration does oxygen go from? what does it go to?
from high to low
What type of respiration is within the skin?
cutaneous
what type of respiration is in the lining of the mouth?
buccopharyngeal
what type of respiration is through sacs?
lung
with each inhalation/exhalation cycle in mammals, how much air is replenished?
less than 1/6 %
what is most of the pathway of air lined with?
mucous secreting ciliated epithelium
what is some of the pathway of air lined with?
cartilage ring
what are external nares? what do they consist of?
naval cavity
cilid and mucous
what are internal nares?
pharynx of mouth cavity
what is the point where the respiratory and digestive systems cross paths?
pharynx of mouth cavity
what is the opening to the respiratory tube?
glottis
what prevents items from entering the glottis?
epiglottis
what is the voice box? what is it a part of?
larynx
trachea
what is the wind pipe?
trachea
what is at the fork of the trachea?
2 bronchi
which bronchi is wider and straighter?
right bronchus
LOOK AT BRONCHIOLES IN NOTES!!!
LOOK AT BRONCHIOLES IN NOTES!!!
What is the concentration of Oxygen and carbon dioxide for inhaled air?
high oxygen, low carbon dioxide
What is the concentration of Oxygen and carbon dioxide for blood in capillaries?
low oxygen, high carbon dioxide
What is the concentration of Oxygen and carbon dioxide for exhaled air?
high carbon dioxide, low oxygen
what is the large, muscular organ that separates the thoracic and abdominal cavities?
diaphragm
is the diaphragm voluntary or in voluntary?
involuntary
what kind of tissue is the diaphragm?
smooth muscle
what does the diaphragm do during inhalation?
it contracts and moves/pulls down the expanding chest cavity
when lungs expand, what happens?
air is pulled in by a passive movement
what happens to the diaphragm during exhalation?
it relaxes and pulls up
what does the ribcage do to the lungs during exhalation?
compresses the lungs to expel air
which has energy expenditure, relaxation or contraction?
contraction
which system is associated with waste disposal and filtering blood?
urinary system
what is disposed in the urinary system?
waste ions and urinary waste
what is the regulation of water and ion balance within the body?
osmoregulation
what puts fresh water in the body? how?
red blood cells
change in concentration and redistribution of water by osmosis
what maintains pH?
H+ secretion
what does water excrete?
nitrogenous wastes
what percent do human gain water from drinking?
48%
what percent do human gain water from free water in food?
40%
what percent do human gain water from metabolic water?
12%
what percent do human lose water from urine?
60%
what percent do human lose water from evaporation (skin, lungs)?
34%
what percent do human lose water from feces?
6%
what is the nitrogenous waste for fish?
ammonia
what is the nitrogenous waste for amphibians and mammals?
urea
what is the nitrogenous waste for reptiles and birds?
uric acid
what organ filters blood?
kidneys
how many kidneys are in vertebrates?
2
which has more complex kidneys, fish or mammals and birds? why?
mammals and birds
bigger, can handle greater pressure
what are kidneys drained by?
special tubes
what is an advanced kidney that is drained by a ureter, has lots of nephrons, and filters at much higher pressures?
metanephric kidney
which part of the kidney filters blood?
nephron
what are tubes that are draining from kidneys to urinary bladder?
ureter
what is used as temporary storage?
urinary bladder
what is used for release from the body?
urethra
what is the functional unit of the kidney?
nephron
how many nephrons are there per kidney?
1 million
what is the nephron composed of?
2 things
renal corpuscle and renal tubule
what is the renal corpuscle composed of?
glomerulus and bowman’s capsule
what is the glomerulus?
capillary beds
wha does the glomerulus do?
filters blood
what in the glomerulus filters the blood?
glomerular filtrate
what surrounds the glomerulus and receives the glomerular filtrate?
bowman’s capsule
what receives the glomerular filtrate from the bowman’s capsule?
renal tubule
what are the 4 sections of the renal tubule?
proximal tubule
lower loop
distal tubule
collecting duct
what are the 3 stages of urine formation?
filtration
reabsorption
secretion
what are the 3 goals of blood filtration?
remove wastes
save goodies
conserve water
which stage cleans blood? where does this take place?
filtration
glomerulus and bowman’s capsule
what stage is the movement of glomerular filtrate out of the tubule back into the blood? where does this take place?
reabsorption proximal tubule (60%)
what is expended in reabsorption?
ATP
what stage is the movement of substances out of the blood and into the tubule? where does this take place?
secretion
distal tubule
is ATP expended in secretion?
yes
LOOK AT FILTRATION PICTURE IN NOTES!!!
LOOK AT FILTRATION PICTURE IN NOTES!!!
READ VERTEBRATE NEPHRON DIFFERENCES IN NOTES!!!
READ VERTEBRATE NEPHRON DIFFERENCES IN NOTES!!!
what is the constricted part of the tubule and looks like a loop?
loop of henle
what does the loop of henle do to the glomerular filtrate?
slows it down
what does the loop of henle allow for? 3 things
more water reabsorption
more goodies reabsorption
more concentration of waste into tubule
which system is the hormonal control of body functions?
endocrine
what are the 3 types of signaling molecules?
neurotransmitters
pheromones
hormones
where are hormones transported in animals?
in the blood stream
which glands are ductless? which have ducts?
endocrine glands
exocrine glands
what are the ducts in exocrine glands used for?
to discharge secretions
where are exocrine glands? give 2 examples
on surfaces
salivary glands, sweat glands
what produces releasing hormones that regulates pituitary hormones?
hypothalamus
what is the FSH-RH?
follicle stimulating hormone- releasing hormone
what is the LH-RH?
leutenizing hormone- releasing hormone
what are the hormones in the hypothalamus?
FSH-RH
LH-RH
what secretes hormones that regulate other endocrine glands?
pituitary glands (anterior)
what hormones are secreted in the pituitary glands?
gonadotropins (FSH & LH)
what hormone acts on the thyroid glands?
thyrotropins
what hormone acts on the adrenal glands?
adrenocorticotropins
what hormone stimulates cell division?
growth hormone
what hormone stimulates the mammary glands for milk production?
prolactin hormone
what hormone is used for pigment dispersion?
melanophore-stimulating hormone
what 2 hormones are part of the pituitary posterior?
vasopressin
oxytocin
what hormone acts on the kidney for urine flow?
vasopressin
what hormone stimulates contraction of uterus during birth and stimulates the release of milk?
oxytocin
what gland mostly alters the rate of enzyme activity?
thyroid gland
what hormone promotes the normal development of the nervous system in embryonic development?
thyroxine
what is the anterior part of the kidney?
adrenal gland
what 4 things does the adrenal gland secrete?
cortisol
aldosterone
epinephrine
norepinephrine
which hormone in the adrenal gland is an anti-inflammatory hormone?
cortisol
what promotes reabsorption within the kidney’s nephric tubule?
aldosterone
what builds up the body in an emergency situation?
epinephrine (adrenaline)
what gets the body back to normal?
norepinephrine (noradrenaline)
what are 2 digestive hormones?
gastrin
cholycystokinin
what stimulates the secretion of HCl?
gastrin
what 2 things does cholycystokinin?
stimulate the trickling of bile from gall bladder into small intestine
stimulate the pancreas to release enzymatic juices into small intestine
what are 8 characteristics of asexual reproduction?
one parent no gametes no reproductive organs produces genetically identical offspring result of mitosis/cytokinesis simple energetically cheap fast
what are 4 examples of asexual reproduction?
binary fission
budding
gemmulation
fragmentation
which type of asexual reproduction is where the parent divides by mitosis and cytokinesis into 2 parts?
binary fission