BSC2011L: Fetal Pig Dissection Practical

thoracic cavity

the upper cavity

containing the lungs and heart

abdominal cavity

the lower cavity

containing the organs of the

digestive, excretory and

reproductive systems

diaphragm

muscle that separates the two cavities

negative pressure breathing

-rib cage expands and the

diaphragm contracts,

expanding the chest cavity

-causes the pressure

in the chest cavity to

decrease, and the lungs

expand to fill the space

respiratory system

series of organs

responsible for taking in

oxygen and expelling

carbon dioxide

trachea

connects larynx to bronchi allowing blood flow

lungs

oxygen enters here and allows blood vessels to become oxygenated

circulatory system

system that circulates

blood and lymph through the

body

heart

contains four chambers

umbilical vein

carries oxygenated and nutrient rich

blood from the placenta to into the liver

umbilical arteries

-arise from the iliac arteries in the

legs

-take deoxygenated blood to the placenta

spleen

storage organ for red blood cells

foramen ovale

allows blood to enter the left atrium from the right atrium

ductus arteriosis

connects pulmonary artery

to the aortic arch, allowing

most blood from the right

ventricle to bypass the

fluid-filled lungs of the fetus

digestive system

series of organs that

work together to convert

food into energy and

nutrients to feed the body

stomach

large organ that holds food

large intestine

-small intestine joins here

-transmit useless material away from the body

small intestine

pancreas

helps in digestion through exocrine and regulates blood sugar

gallbladder

store and concentrate bile

liver

filter blood coming from digestive tract

excretory system

system of organs that removes liquid waste from the body

kidney

filters blood to produce waste

urinary bladder

skeletal system

framework of the body,

consisting of bones and other

connective tissues, which

protects and supports the body

ribs

reproductive system

system of

organs that work

together for the

purpose of sexual

reproduction

urethra

testis

sperm produced here

penis

male reproductive organ

scrotal sac

epididymis

sperm stored here

uterine horn

ovaries

uterus

vagina

urethra