Answer:
The correct answer is D.
Explanation:
Papillary muscles, attached via chordae tendineae, help to close the valves and prevent regurgitation.
Pectinate muscles are parallel ridges in the walls of the atrium of the heart, mainly in right atrium. They can stretch during adverse loading conditions, to <em>help the right atrium to dilate without much wall stres</em>s.
The tough, thin outer membrane covering the bones is called the periosteum.
Answer:
D it is airborne it floats in the air and causes the allergy
Answer:
Among the different disaccharides, lactose (milk sugar) is the only carbohydrate of animal origin.
Answer: Venous bleeding
Explanation:
The external bleeding can be define as the bleeding in which the blood leaves the body due to external injury. The internal bleeding is the bleeding which occurs inside the body that may occur due to internal injury. There are about three types of external bleeding named as capillary, venous and arterial.
Capillary bleeding is most common and results from damage of tiny capillaries. Arterial bleeding is one of the serious type. The blood will spurt out from damage artery. It involves large amount of blood loss.
Venous bleeding occurs when a vein is subjected to cut, blood will steadily flow. If a deep vein is cut then the bleeding cannot be controlled and it can be fatal.
