Answer:
The correct answer is a. True
Explanation:
The heart is made up of three-layer outer layer epicardium, middle layer myocardium, and inner layer endocardium. Outer to the epicardium layer pericardium membrane is present which protects the heart and consists of two-layer, outer fibrous pericardium and inner pariental serous pericardium.
Epicardium is the thin outer layer of the heart and also called the visceral layer of the serous pericardium. Between parietal serous pericardium and visceral serous pericardium(epicardium) pericardial cavity is present which is filled with pericardial fluid which helps in friction reduction between these two membranes.
Increasing extracellular K+ increases the positive charge outside the cell, making the inside of the cell (membrane potential) more negative. This inhibits net diffusion of Na+ into or out of the cell.
Answer:
Vitamin D is dangerous when you take large amounts in short periods, or too much even in long periods.
Answer:
d. Both a and b are correct
Explanation:
Blood is pumped into aorta and pulmonary arteries vessels during ventricular systole.
Answer:
Substances stored in the liver
Explanation:
The liver, which is the largest gland in the body, stores vitamins A,D,E,K glycogen, which maintains blood glucose levels, iron and copper.
