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