Thicker than Water
After the initial pulse is set by the SA node, the impulse slows as it passes through this node.
What is the AV node?
Within the larynx, this unpaired cartilage is the only segment composed of elastic cartilage-- the rest are made of hyaline.
What is the epiglottis?
The epiploic appendages of the large intestine attach to these specialized ribbons of longitudinal muscle.
What are the taeniae coli?
When a person has their gallbladder removed, they struggle to digest this type of biological molecule.
What are fats / lipids?
This type of intermediate-speed muscle fiber -- "fast-twitch oxidative" -- is found primarily in endurance-trained athletes.
What is Type IIa?
As blood passes through the left atrium to the left ventricle, it moved through this feature.
What is the bicuspid valve?
The palatine and maxillary bones form this structure, which separates the nasal and oral cavity.
What is the hard palate?
These deep folds of the small intestine slow the movement of chyme to increase nutrient absorption.
What are the plicae circulares?
This sphincter controls flow of fluid through the common bile duct and the pancreatic duct.
What is the sphincter of Oddi?
The thoracic splanchnic nerve innervates this structure to release epinephrine and norepinephrine.
What is the adrenal medulla?
The visceral layer of the serous pericardium is also known by this name.
What is the epicardium?
The palatine and lingual tonsils are found in this section of the pharynx.
What is the oropharynx?
This sphincter, made of modified circular muscle, controls the flow of chyme into the duodenum.
What is the pyloric sphincter?
This product of hemoglobin forms the main pigment in bile, and if levels of it are elevated, results in jaundice.
What is bilirubin?
The lymphatic system ends at this point, draining into the internal jugular and left subclavian veins.
What is the thoracic duct?
These "vessels to the vessels" supply oxygen and nutrients to larger atria and veins.
What are vaso vasorum?
Lung tissue receives oxygenated blood from these arteries.
What are the bronchial arteries?
These specialized cells of the stomach releases HCl and intrinsic factors.
What are parietal cells?
This feature of the liver separates the left and right lobes of the liver.
What is the falciform ligament?
This axillary and radial branches of the brachial plexus are supplied by this cord.
What is the posterior cord?
This type of capillary is characterized by wide "window-like" pores and is found in kidneys.
What are fenestrated capillaries?
The alveolar capillaries contain an enzyme that allows for the conversion of this substance, which acts to regulate blood volume and blood pressure.
What is angiotensin II?
This secretion of the small intestine activates trypsin from trypsinogen to allow for protein digestion.
What is enterokinase?
Within the liver, these specialized macrophages line sinusoids to remove foreign debris using phagocytosis.
What are Kupffer cells?
Within the skull and clavicle, bone develops via this process: wherein mesenchymal cells line up around blood vessels, differenciate into osteoblasts and secrete osteoid tissue.
What is intramembranous ossification?