Answer:
Melatonin is released by the pineal gland, that is hormones or neurotransmitter which is related to the sleep. It is influence the sleep wake cycle. Where as melanin is pigment that naturally colors skin or the hair. More the melanin more the darker the skin or hair.
Melatonin regulates changing in pigmentation by association of melanin into the melanocytes within the skin, leads to the skin to color change. This relation is is also accountable for the yellowish skin color in elderly people and people with insomnia.
Answer:
The right ventricle can be found below the right atrium and opposite the left ventricle in the bottom right part of the heart.
Answer:
b. Cellulose acetate
Explanation:
Cellulose acetate is acetate ester of the cellulose.
The material was first prepared in 1865. It is used as film base in the photography as component in coatings and also as frame material for the eyeglasses. Also, it is used as synthetic fiber in the manufacture of the cigarette filters and also in playing cards. It is used because it is far less flammable and also cheaper to produce. <u>It provides support and stiffness to the X-ray film and further helps in producing good results.</u>
Answer:
a. I olfactory
Explanation:
Journey of the Olfactory nerve:
-Originates on the caudal surface of the olfactory bulb
-Crosses the cribriform plate of the ethmoid bone from one part of the critlal galli to the other
-Reachers the olfactory region of nasal cavity
Answer:
As the lungs expand, the alveoli in the lungs are cleared of fluid. An increase in the baby's blood pressure and a major reduction in the pulmonary pressures reduce the need for the ductus arteriosus to shunt blood.
