Fetal Pig
length of large intestine
150cm
How long does full gestation take?
17 weeks
How many hemispheres does this lobe have?
4
How many lobes are their to the pigs liver?
4, liver functions to filter toxins
length of small intestine
550-600cm
How many piglets does a sow have in a litter?
8-12
Where is the epiglottis & what is its function?
Located at the opening to the Larynx to prevent food from entering the respiratory passageways.
Does the diaphragm function in the fetus?
No, it gets oxygen from their mother in the umbilical cord
What are the air sacs for gas exchange?
alveoli
What do fetal pigs drink so that their stomachs wont be full?
amniotic fluid
Kingdom
animalia
naris
another name for nostrils
colon
another name for the large intestine, reabsorbs water and ions
Origin
artiodactyla
Where is the pharynx located?
back of nasal cavity
Why does the ductus arterioles close off at the time of birth?
blood needs to travel to lungs to give
Name the tubes that enter the lungs
bronchial tubes
Name the smaller tubes that branch from these
bronchioles
What keeps the trachea from collapsing?
cartilage rings.
tail area
caudal
Name the largest area of the brain.
cerebrum
Phylum
chordata
What is the function of the epiglottis?
closes the esophagus
cerebellum
coordination, posture, body position
In what 2 systems does the epiglottis function?
digestive and respiration
sphincter
divide to spaces and prevents things from moving backwards
Species
domestica
Where is esophageal area located?
esophagus and stomach
Where is the cardiac area located?
esophagus and stomach
Domain
eukary
distal
far from the reference point
duodenum
first part of intestine, absorbs nutrients
What is the pericardium?
fluid filled sac
Anterior
forward
Describe the interior of the lungs.
full of small tubes surrounded by spongy material
cranial
head area
What results when coronary circulation is prevented in humans?
heart attacks
What is the purpose of saliva?
helps break down food
medulla oblongata
integration, regulation in cardiac, respiratory center
Why is the fetal pig a good specimen to dissect?
it has similar anatomy of humans
In order, name the structures through which urine passes from the kidneys.
kidneys, ureters, urinary bladder, urethra, urogenital openings
From what chamber does the aorta arise?
left ventricle
pinnae
long external fold of the ear
lower trunk
lumbar
To what structure do the pulmonary arteries lead?
lungs
hair
main appendage of skin
How to determine sex of pig?
male has a urogenital opening, penis and anus. female has uroginital papilla, anus
Class
mammalia
How is age determined?
measuring length of fetal pig
Name the protective membranes covering the brain.
meninges
What are the membranes that attach the internal organs to the body wall?
meninges
abdominal
middle trunk
Where does the digestive tract start & end?
mouth - anus
proximal
near the reference point
cervical
neck area
What is the function of coronary circulation?
nourishes tissues of the heart
Are pigs omnivores, herbivores, or carnivores?
omnivores, eats everything
In order, name the structures through which an egg would pass from the ovary.
ovary, fallopian tubes, uterus, cervix, vagina
Rostral
pertains to head, towards the snout
caudal
pertains to the tail, towards the tail
Name the tissue that covers and protects the lungs.
pleura
What are animals like pigs called that have multiple stomachs?
polygastric
pancreas
produces enzymes
Is a pig biped, or quadruped?
quadruped, has 4 legs
Into what heart chamber does the superior and posterior vena cava open?
right atrium
What are the fringes inside the stomach?
rugae, allow stomach to expand
jejunum
second part of intestine
What does the olfactory lobe at the front of the brain control?
sense of smell
spinal cord
sensory information
What part of the skeletal system protects the brain?
skull
chyme
soupy, digestive material that leaves the stomach
Where is the diaphragm?
splits the abdomen and thoratic cavity
Where is the pyloric area located?
stomach and small intestine
gall bladder
stores bile
middle portion
straight, terminal part of the large intestine
Family
suidae
Genus
sus
In order, name the structures through which sperm passes from the testes.
testes, epididymis, sperm ducts, urethra
Why do the lungs appear collapsed in the fetus?
they aren't ready yet
ileum
third part of intestine
What cavity are the lungs found in?
thoratic cavity
epitrichium
tissue that makes up skin
dorsal
toward the backbone
ventral
toward the belly
medical
toward the midline
lateral
toward the side
Where do fetal pigs receive nourishment from their mother?
umbilical cord
Fetal Pigs
unborn pigs
Is pig digitigrade, unguligrade, or plantigrade?
unguligrade, walks on tips of its toes
thoracic
upper trunk
cerebrum
used for thinking, willed movements, memory, problem solving, and language
What difference between the atria and the ventricles can you feel with your fingers?
ventricles are thicker, atria are smoother
Give the function of the larynx.
voice box
