Biology 2 Pig Dissection

epiglottis

prevents food from entering the trachea during swallowing

larynx

produces sound (voicebox)

thymus

site of maturation of T-cell lymphocytes

thyroid

produces hormones necessary for development (T3 & T4)

diaphragm

muscle used for rib cage ventilation (inhale/exhale)

lungs

site of gas exchange between blood and atmosphere

liver

storage of glycogen, detoxification of blood, bile production

umbilical vein

carries blood FROM placenta to developing fetus

umbilical arteries

carry blood AWAY from fetus to placenta

gall bladder

storage and release of bile into the duodedum

stomach

acid and pepsin production, food storage, digestion

spleen

filters blood, recycles iron

pyloric valve

controls release of stomach contents to duodenum

duodenum

enzymatic breakdown of food

jejuno-ilium

absorption of digestion products

pancreas

makes hormones (insulin/glucagon) and digestive enzymes

colon

reabsorption of water from waste

rectum

stores waste prior to defecation

coronary arteries and veins

carry blood to and from heart muscle

right and left atria

receive blood returning to heart

right and left ventricles

pump blood away from heart

cranial and caudal vena cava

carry blood back to the right atrium

pulmonary trunk

carries deoxygenated blood from heart to lungs

aorta

carries blood from left ventricle to body

kidneys

filters wastes from blood, water balance

adrenal gland

stress response and water balance hormones

ureter

carries urine from kidneys to bladder

urinary bladder

storage of urine prior to excretion

urethra

tube through which urine is released

urogenital opening

opening through which urine and reproductive fluid is excreted

scrotum

holds testes, maintains proper temperature

testes

testosterone and sperm production

epididymis

sperm storage and maturation

ductus deferens

transfers sperm to urethra from epididymis

ovaries

egg, estrogen, progesterone production

uterine tube

site of fertilization

body of the uterus

implantation site of embryo