the organ of smell and entrance to the respiratory tract, only visible part
nostrils, Openings through the nose carrying air into the nasal cavities
the cavity behind the nose and above the roof of the mouth that filters air and moves mucous and inhaled contaminants outward and away form the lungs.
separates the oral and nasal cavity
above, supporting the palate
unsupported superior part
the passage to the stomach and lungs
protects the superior opening of the larynx
True Vocal Cords
"vocal folds" allows us to speak, vibrate
slit-like opening to the larynx
membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
walls of the trachea
either of two saclike respiratory organs in the chest of vertebrates, largest organ in the respiratory system
narrow, superior part of the lungs
broad lung area resting on the diaphragm
Alimentary canal(GI tract)
Consists of mouth, pharynx, esophagus, stomach, small intestine, large intestine. Collectively, breaks down food to simple molecules and absorbs these molecules into the bloodstream
Accessory digestive organs
Teeth, Tongue, Salivary Glands, Liver, Gallbladder, and Pancreas
a mucosa lined cavity whose boundaries are the lips anteriorly, the cheeks laterally, the palate superiorly, and the tongue inferiorly
a small pendant fleshy lobe at the back of the soft palate
Fold of mucous membrane that connects the tongue to the floor of the mouth
the passage between the pharynx and the stomach
an enlarged and muscular saclike organ of the alimentary canal
muscular opening between the esophagus and stomach
the sphincter muscle of the pylorus that separates the stomach from the duodenum
Ridges on the hard palate and the wall of the stomach
part of the peritoneum attached to the stomach and to the colon and covering the intestines
duodenum 25cm, jejunum 1.4, ileum 3.5 m
prevents food from moving back into the small intestine once it has entered the large intestine
the last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body, the last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body
wormlike projection of lymphatic tissue hanging off the cecum with no digestive function; may help resist infection (vermi = worm)
excretory opening at the end of the alimentary canal
the 32 teeth of the adult which are designed to last a lifetime.
three pairs of exocrine glands in the mouth that secrete saliva; the parotid, submandibular (submaxillary), and sublingual glands
a large elongated exocrine gland located behind the stomach
large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity
a ligament that attaches part of the liver to the diaphragm and the abdominal wall
a digestive juice secreted by the liver and stored in the gallbladder
Common hepatic duct
joins the cystic duct (goes to gallbladder) to form common bile duct
a muscular sac attached to the liver that secretes bile and stores it until needed for digestion
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