Iris, Ciliary Body & Choroid
Accessory structures are organs that support the function of the GI tract but are not part of the digestive tube itself, such as the liver, pancreas, and gallbladder. GI tract structures are the organs directly involved in digestion and nutrient absorption, including the mouth, esophagus, stomach, small intestine, and large intestine. The accessory structures aid in digestion by producing enzymes, hormones, and other substances necessary for breaking down food.
The outpockets of an anterior digestive tract that may develop into respiratory structures are called respiratory diverticula. These diverticula are found in organisms like insects and some mollusks, where they eventually form into structures like tracheae or lungs for gas exchange.
The white matter tract in the ventral portion of the mid-brain is likely referring to the cerebral peduncles. These structures contain fibers connecting the cortex to the brainstem and spinal cord. They are involved in motor coordination and control.
Epithelial tissue is found in lining or covering structures that are exposed to wear and tear like skin, respiratory tract, and gastrointestinal tract. Its main function is to provide protection against mechanical injury, pathogens, and chemical substances.
The smallest and most distal structures that remain a part of the conducting zone in the respiratory tract are the terminal bronchioles. These bronchioles are the final branches of the conducting airways before reaching the respiratory zone where gas exchange occurs in the alveoli.
iritis
no
The uvea, also called the uveal layer, uveal coat, uveal tract, or vascular tunic, is the pigmented middle of the three concentric layers that make up an eye.
Accessory structures are organs that support the function of the GI tract but are not part of the digestive tube itself, such as the liver, pancreas, and gallbladder. GI tract structures are the organs directly involved in digestion and nutrient absorption, including the mouth, esophagus, stomach, small intestine, and large intestine. The accessory structures aid in digestion by producing enzymes, hormones, and other substances necessary for breaking down food.
Stomach and Duodenum
Esophagus and stomach
Corneosclera Tunic, Uveal Tunic, & Retinal Tunic
cilia
The respiratory tract is lined with ciliated epithelium.
The outpockets of an anterior digestive tract that may develop into respiratory structures are called respiratory diverticula. These diverticula are found in organisms like insects and some mollusks, where they eventually form into structures like tracheae or lungs for gas exchange.
There are several structures associated with the lower respiratory tract. Those worth mentioning include: the trachea, the bronchi, the bronchial tree, the lungs, and the pleural cavity.
A fistulous tract is an abnormal passage that forms between two body structures, such as between organs or between an organ and the skin. It is usually the result of an infection, injury, or surgery. Treatment typically involves addressing the underlying cause and may require surgical intervention to close the tract.