Pig Dissection

Pinna

External flap that helps gather and concentrate sound waves

External Acoustic Meatus

Short passage leading to the eardrum that helps gather and concentrate sound waves

Upper and Lower Eyelids

Protect the eyes

Nictitating membrane

Covers the anterior portion of the eyeball and can move across the eye to keep it clean

Mouth

Enables eating and where digestion begins

Lips

Fleshy parts of the mouth that enable the young to suckle

Cheeks

Muscular parts of the mouth that enable the young to suckle

Nostrils

Openings at the end of the snout that allow for breathing and smelling

Umbilical Cord

contains blood vessels that carry nutrients and oxygen to the fetus from the placenta and waste away from the fetus

umbilical vein

carries reoxygenated blood towards fetus from placenta

umbilical artery

Carries deoxygenated blood away from fetus to be replenished by mother

Nipples

external openings of mammary glands that are used for breastfeeding in females and nonfunctional in males

Anus

Posterior opening leading to outside the body where waste is excreted

Tensor Fascia Lata

flexes and rotates the hip; extends the knee

abduct

move laterally

Gluteus Medius

abducts the thigh

Gluteus Maximus

abducts the thigh

Biceps femoris

abducts the thigh and flexes the shank

shank

knee to ankle

Gastrocnemius

extend the foot

Tibialis Anterior

flexes the foot

Extensor digitorium longus

flexes the digits

Tongue

moves food into the esophagus and aids in speaking

Hard palate

separates the nasal cavity and oral cavity

Soft palate

prevents food from entering nasal cavity while swallowing

teeth

aid in the mechanical digestion of food

Pharynx

passageway where food, water, and air enters

Epiglottis

Flap of tissue that prevents food or liquids from passing through glottis into trachea

Glottis

Canal that leads oxygen to trachea

esophagus

Tube that carries food from the oral cavity to stomach

Thymus

endocrine gland that produces antibodies to defend against disease

Larynx

the voice box that contains vocal chords which produce sound

Trachea

windpipe that brings oxygen to lungs

diaphragm

muscular structure that separates the thoracic cavity from abdominal cavity

stomach

stores food and breaks it down

Pyloric Sphinctor

Passes food from stomach to small intestine

Mesentary

Fold of peritoneum that hold abdominal organs to the walls of the abdomen

Spleen

functions in the production, storage, and elimination of red blood cells

Duodenum\`

beginning of small intestine and absorbs nutrients and minerals

Jejunum

The body of the small intestine which continues to digest food and absorb nutrients

Gallbladder

stores bile produced by liver which helps break down fats

Ileum

end of small intestine which absorbs vitamins and minerals and breaks down remaining food

Pancreas

Produces and secretes insulin and releases digestive enzymes into small intestine

Caecum

Connects and passes substances between the the small intestine and large intestine

Large intestines

recieves liquid waste, absorbs water into bloodstream, and produces feces from waste

Rectum

transfers fecal matter from large intestine to anus

Nasal Septum

separates nasal passages

Nasal passages

adjusts temperature and humidity and of incoming air and clean it using nose hairs, mucus, and cilia

Thyroid

endocrine gland that produces thyroxine which regulates metabolic rate

Bronchii

tubes that branch off from the trachea and bring air to the lungs

Air sacs

functional units of lungs that engage in gas exchange between oxygen and blood

Lungs

responsible for respiration and adding oxygen to blood for circulation

Pericardium

tough peritoneum surrounding heart to keep it in place

Heart

pumps blood throughout the body

right atrium

receives deoxygenated blood from body from vena cava and gives it to the right ventricle

right ventricle

receives blood from right atrium and uses pulmonary artery to send to lungs

Pulmonary trunk

branches into pulmonary arteries

Pulmonary artery

carries deoxygenated blood to lungs

Pulmonary vein

carries oxygenated blood from lungs to left atrium

left atrium

send oxygenated blood to left ventricle

Left ventricle

recieves blood from atria and sends it to aorta

Aorta

Carries newly oxygenated blood to the body via bodily arteries

Ductus Arteriosus

Short vessel leading from pulmonary trunk to aorta to prevent use of pulmonary circulation

Coronary artery

supplies blood to the walls of the heart

Superior/Anterior Vena Cava

receives deoxygenated blood from head, arms, and chest and sends it to right atrium

Inferior/Posterior vena cava

Receives deoxygenated blood from torso and lower body and sends it to right atrium

Carotid arteries

supplies blood to the neck, head, and right forelimb

Left subclavian artery

Supplies blood to left forelimb

Descending aorta

carries blood to the head and legs

Coeliac artery

supplies blood to the stomach, duodenum, liver, and spleen

Mesenteric artery

supplies blood to pancreas and small intestine

Renal Artery

supplies blood to each kidney

Iliac arteries

supplies blood to each leg

Foramen Ovale

Allows oxygenated blood to pass from right to left side of the heart to avoid lungs

Kidneys

organs that filter nitrogenous waste from the blood

renal vein

carries deoxygenated blood from the kidneys to posterior vena cava

ureter

carried urine from kidneys to urinary bladder

Urinary bladder

stores urine

urethra

carries urine from urinary bladder to outside the body

Liver

produces bile, detoxifies the blood, and stores and secretes glycogen and other minerals, and synthesizes proteins

Vagina

birth canal

Cervix

Serves as a juncture between the vagina and uteri and keeps the fetus safe

Uterine horns

Passageways for the sperm to reach the oviduct

Uterus

Where fertilization occurs and developing eggs implant

Oviduct(fallopian tubes)

Where eggs are carried into during ovulation

Ovaries

Where oocytes are produced and mature, all eggs are stored, and endocrine glands produce estrogen and progesterone