BIOL 1108 Lab Pig Dissection Practical

Auricle

external portion of the pig's ear

Prepuce orifice (male)

Appendages

arms and legs

Trunk

torso

Scrotum

Holds testes, maintains proper temperature

part above the tail

External acoustic meatus

ear hole

Thorax

chest

Anus

opening under the tail

Genital Papillae (female)

nipple right above the anus

Mammary Papillae

nipples

Masseter

cheek muscle

Parotid gland

right behind the masseter

Epiglottis

Prevents food from entering the trachea during swallowing

Papillae of Tongue

taste buds

Hard palate

top of the roof of the mouth

Soft palate

bottom of the roof of the mouth

Nares

nostrils

Nasal Septum

a wall of cartilage that divides the nose into two equal sections

Larynx

Produces sound (voicebox)

thymus

Site of malnutrition of t-cell lymphocytes

vocal cords

in the larynx

trachea

thyroid

Produces hormones necessary for development (T3 & T4)

Diaphragm

Muscle used for rib cage ventilation (inhale/exhale)

glottis

opening to the larynx

Esophagus

located next to trachea

Lungs

Site of gas exchange between blood and atmosphere

liver

Storage of glycogen, detoxification of blood, bile production

located right above the intestines

mesenteries

Umbilical Vein

Carries blood from placenta to developing fetus

Umbilical Arteries

Carry blood away from fetus to the placenta

Pericardial Sac

containing the heart

Gallbladder

Storage and release of bile into the duodenum

Stomach

acid and pepsin production, digestion

Greater Omentum

spleen

Filters blood, recycles iron

to the right of the stomach

pyloric sphincter valve

Controls release of stomach contents to duodemun

Colon (large intestine)

reabsorption of water from waste

Duodenum

Enzymatic breakdown of food

pancreas

Makes hormones (insulin/glucagon) and digestive enzyme

to the left of the stomach

rectum

stores waste prior to defecation

located across from the umbilical vein

Jejuno-ilium

Absorption of digestion products

(small intestine)

Coronary Arteries and Veins

Carry blood to and from the heart muscle

Right and Left ventricles

pump blood away from the heart

both located on opposite sides of the coronary arteries and veins

Pulmonary Artery

Pulmonary Trunk

Carries deoxygenated blood from heart to lungs

Cranial and Caudal Vena Cava

Carry blood back to the right atrium

right and left atria

Receive blood returning to heart

Pulmonary Vein

both veins are next to the pulmonary artery

Aorta

Carries blood from left ventricle to body

testes

testosterone and sperm production

located to the right of the bladder

epididymis

Sperm storage and maturation

located to the left of the bladder

Spermatic Cord

located above the epididymis

Glans Penis

located above the spermatic cord

Ductus Deferens

transfers sperm to urethra from epididymis

prepuce

right above the tail

ovaries

Egg and female hormone productions

uterine tube

site of fertilization

body of uterus

implantation site of embryo

located above the vagina

Vagina

thin tube located above the genital papilla

Horn of Uterus (female)