Answer:
<em>Pulmonary surfactant.</em>
Explanation:
It is essential for life as it lines the alveoli to lower surface tension, thereby preventing atelectasis (a complete or partial collapse of the entire lung or area (lobe) of the lung) during breathing.
Hopefully this is right:
Comes in through superior and inferior vena cava, then enters right atrium, then tricuspid valve and into the right ventricle. Then the deoxygenated blood gets pumped through the pulmonary artery to the lungs. Oxygenated blood comes back through pulmonary vein and into left atrium. Then goes through mitral valve and into left ventricle which then pumps the blood through aorta.
Answer:
The correct answer is e. dermis
Explanation:
Lymph capillaries are thin walled capillaries interwoven with blood capillaries and found throughout the body except nervous system, bone marrow, and tissues that do not contain vascular tissue like epidermis.
The role of lymphatic capillaries is to collect the extra fluid which is secreted by the tissues in the intercellular spaces. This fluid is called lymph and is clear and transparent and contains WBCs and plasma.
Lymph is different from blood because it do not contain RBCs and platelets. Lymphatic vessels are important part of body immunity because it contains many WBCs in their lymph helpful in fighting diseases.
Answer:
The correct answer is A. The blood vessels of the renal medulla that run alongside the nephron loops are the vasa recta.
Explanation:
In anatomy, the descending vasa recta or descending straight vessel is an artery of the renal tissue, originating from the efferent arterioles, arched artery, and interlobar artery. They are so named because they follow a straight and descending trajectory from the cortex to the deepest portions of the renal medulla.
Answer:
The correct option is: B) peristalsis
Explanation:
Peristalsis is the involuntary wave-like contractions and relaxations of the smooth muscles of the gastrointestinal tract of the humans.
These alternating contractions and relaxations produces a peristaltic wave that pushes the food down the esophagus of the digestive system. The peristaltic movement prevents the food from moving backwards and pushes the food forward.
