What is ostium?

1. Where is the ostium?
2. What is the function of the ostium?
3. What is ostium in zoology?
4. What is the ostium of an artery?
5. What is an accessory ostium?
6. What is Ostia and Osculum?
7. Where are Choanocytes found?
8. What does ostial mean in cardiology?
9. In which phylum is Ostia found?
10. What is meant by the term sessile?
11. What is the meaning of secundum?
12. What causes atherogenesis?
13. What are Ostia in biology?
14. What is maxillary sinus ostium?
15. Where is the ostium of maxillary sinus present?
16. What is antrum puncture?

Where is the ostium?

The ostium, or opening, of the right coronary artery is in the right aortic sinus and that of the left coronary artery is in the left aortic sinus, just above the aortic valve ring.

What is the function of the ostium?

Ostia are tiny pores present all over the body of sponges. its function is to let the water, along with desire nutrient flows interior of the sponges.

What is ostium in zoology?

noun, plural os·ti·a [os-tee-uh]. Anatomy, Zoology. a small opening or orifice, as at the end of the oviduct. Zoology. one of the tiny holes in the body of a sponge.

What is the ostium of an artery?

An ostium (pl. ostia) is a generic medical term for "hole" - for example, there are coronary ostia in the aorta through which blood flows to the coronary arteries. Most people are born with two coronary ostia, one each for the left coronary artery and the right coronary artery.

What is an accessory ostium?

The principle maxillary sinus ostium (PMO) and accessory sinus ostium (i.e., accessory ostium) are the anatomical structures of the middle meatus that are referred to as the osteomeatal complex. This complex contributes to the final drainage pathway of the anterior ethmoidal, maxillary and the frontal sinuses.

What is Ostia and Osculum?

Ostia are the tiny pores present on the surface of sponges, from where water enters and goes to the spongocoel. The osculum is the opening from where the water goes out after passing through the spongocoel.

Where are Choanocytes found?

Location. Choanocytes are found dotting the surface of the spongocoel in asconoid sponges and the radial canals in syconoid sponges, but they comprise entirely the chambers in leuconoid sponges.

What does ostial mean in cardiology?

An ostial lesion is defined as a lesion which begins within 3-5 mm of the origin of a major epicardial artery. Ostial lesions represent a challenge to the interventional cardiologist because they often involve the wall of the aorta, they are often calcified, they may not fully dilate and they are prone to restenosis.

In which phylum is Ostia found?

Ostia are the pores present in the body wall of poriferans (sponges). Through ostia, the water moves in and out of the body of sponges.

What is meant by the term sessile?

Definition of sessile

1 : attached directly by the base : not raised upon a stalk or peduncle a sessile leaf sessile bubbles. 2 : permanently attached or established : not free to move about sessile sponges and coral polyps.

What is the meaning of secundum?

Latin phrase. : according to nature : in accordance with nature especially conceived as religiously sanctioned normality — compare contra naturam.

What causes atherogenesis?

Atherosclerosis is thickening or hardening of the arteries caused by a buildup of plaque in the inner lining of an artery. Risk factors may include high cholesterol and triglyceride levels, high blood pressure, smoking, diabetes, obesity, physical activity, and eating saturated fats.

What are Ostia in biology?

Ostium. Origin: L. (Science: anatomy) An opening; a passage. An opening in organic sponges that allow water to enter the organism.

What is maxillary sinus ostium?

The maxillary ostium or maxillary hiatus is an opening that forms the drainage channel of the maxillary sinus and is also one of the components of the ostiomeatal unit. It is located posteriorly and medially near the roof of the maxillary sinus measuring approximately 2-4 mm.

Where is the ostium of maxillary sinus present?

The ostium of the maxillary sinus is on the highest part of the medial wall of the sinus and is therefore poorly placed from the point of view of free drainage; in addition it does not open directly into the nasal fossa but into the narrow ethmoidal infundibulum, inflammation of which can further interfere with ...

What is antrum puncture?

What is Antral puncture? It is a procedure done both for diagnosis and treatment of sinusitis, where a canula is inserted into the maxillary sinus via an opening made in the inferior meatus.