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Comparative Anatomy (Pig)
Fetus Pig
54
Biology
9th Grade
05/30/2007

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Term
Salivary Glands
Definition
makes saliva to lubricate food, digest carbohydrates and kill bacteria with lysozyme
Term
Incisor Teeth
Definition
cutting food
Term
Cheek Teeth
Definition
grinding food
Term
Hard Palate
Definition
rigid body structure located in anterior of mouth, separates the nasal cavity from the mouth
Term
Soft Palate
Definition
posterior to hard palate, not bony, separates the nasal cavity from the mouth
Term
Pharynx
Definition
for breathing and swallowing, conducts air from nose and mouth to larynx and food from mouth to esophagus
Term
Epiglottis
Definition
flap that closes over the trachea during swallowing
Term
Glottis
Definition
opening to the traches
Term
Esophagus
Definition
food tube to stomach, food pushed along by peristalsis
Term
Stomach
Definition
stores food, begins protein disgestion
Term
Pyloric Sphincter
Definition
muscle with opens and closes the orifice between the stomach and small intestine
Term
Small Intestine
Definition
completes digestion, absorbes nutrients into blood
Term
Duodenum
Definition
beginning of small intestine where bile and pancreatic enzymes are mixed with food
Term
Liver
Definition
makes bile to help digest fats, regulates blood sugar level, breaks down toxic chemicals
Term
Gall Bladder
Definition
stores bile until needed
Term
Pancreas
Definition
makes digestive enzymes for the breakdown of fats, carbohydrates and proteins
Term
Ileocolic Sphincter
Definition
muscle to keep waste in large intestine from backing up into small intestine
Term
Large Intestine
Definition
reabsorbs water from solid waste, forming feces
Term
Pericardium
Definition
sac around the heart, protects and lubricates it
Term
Vena Cava
Definition
brings deoxygenated blood from the body to the right atrium of the heart
Term
Right Atrium
Definition
receives deoxygenated blood from the body and sends it to the right ventricle
Term
Right Ventricle
Definition
receives blood from the right atrium and pumps it to lungs
Term
Pulmonary Artery
Definition
carries deoxygenated blood from the right ventricle to the lungs to get oxygen
Term
Pulmonary Vein
Definition
carries oxygen-rich blood from lungs to left atrium of heart
Term
Left Atrium
Definition
receives ocygen-rich blood from the lungs and pumps it to left ventricle
Term
Left Ventricle
Definition
receives blood from the left atrium and pumps it through the aorta to the rest of the body
Term
Aorta
Definition
the largest artery, carries oxygen rich blood from heart to rest of body
Term
Carotid Arteries
Definition
branch off aorta and supply blood to head, neck, and brain
Term
Subclavian Arteries
Definition
supplies blood to the front legs
Term
Umbilical Arteries
Definition
carries "dirty" oxygen-poor blood to placenta (in mother) from fetus
Term
Renal Arteries
Definition
carries "dirty" (filled with waste) blood to kidneys for filtering
Term
Jugular Veins
Definition
drains blood (blue) from neck, head and brains to vena cava
Term
Umbilical Veins
Definition
brings oxygenated and nutrient rich blood from the placenta (mother) to the fetus, connects to the inferior vena cava
Term
Renal Veins
Definition
brings clean blood (nitrogenous wastes, salts, etc. removed) from the kidneys to the rest of the body
Term
Spleen
Definition
contains white blood cells to fight infections, removes old red blood cells
Term
Nares (Nostrils)
Definition
takes in air from outside
Term
Larynx
Definition
makes sounds
Term
Trachea
Definition
air tube to lungs
Term
Lungs
Definition
exchange oxygen and carbon dioxide with blood
Term
Diaphragm
Definition
muscle under lungs to inhale and exhale
Term
Ribs
Definition
bones protecting the heart and lungs
Term
Sternum
Definition
provides ventral support for the ribs
Term
Kidneys
Definition
filter nitrogen waste, excess salts, water and other chemicals from the blood to form urine
Term
Ureters
Definition
carry urine from kidneys to urinary bladder
Term
Urinary Bladder
Definition
stores urine until released from the body
Term
Urethra
Definition
carries urine from the bladder to the outside of body
Term
Testes/Ovaries
Definition
testes produce sperm in males/ovaries produce eggs in females
Term
Epididymis
Definition
finishes making sperm and stores sperm
Term
Oviducts
Definition
tube from ovaries to uterus, fertilization occurs here
Term
Cerebrum
Definition
divided into left and right hemisphere, for thinking motor control and senses
Term
Longitudinal Fissure
Definition
Seperates left and right hemisphere
Term
Cerebellum
Definition
coordinates movement
Term
Medulla Oblongata
Definition
controls breathing, blood pressure, coughing, sneezing, swallowing, etc.
Term
Spinal Cord
Definition
Conducts messages between brain and body, controls reflexes
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