Human Anatomy and Physiology

It is a V -shaped groove differentiating the anterior two-thirds of the tongue from the posterior third and containing the circumvallate papillae.

The fundus of the urinary bladder is the base of the bladder formed by the posterior wall. The smooth muscle of bladder contracts to expel urine from the body. The trigone lies in the internal surface of fundus of bladder.

In case of injury, the damaged endothelial cells lining the blood vessel release von Willebrand's Factor, which makes the surfaces sticky. The platelets start adhering to the surfaces of endothelial cells. This effect is called platelet adhesion.

Both kidneys receive an arterial supply directly from the aorta, and the renal veins drain directly into the inferior vena cava.

It is the correct statement. Reticulocytes are young, anucleate red blood cells, which are released from bone marrow into the blood in increased numbers as a response to anemia.

There are osmoreceptors in the hypothalamus, which detect an increase in plasma osmolality. In response to input from these receptors and other stimuli, cells in the posterior pituitary gland release ADH.

It is a conical extension of the right ventricle in the heart of mammals from which the pulmonary artery originates.

It is the part of the male urethra lying between the layers of the urogenital diaphragm, and connects the parts of the urethra passing through the prostate gland and the penis. The second constriction of male urethra lies in membranous part.

When hydrogen ions are secreted by the tubules, they can combine with NH₃ to form NH₄+ and so can be excreted as NH₄+.

This is an incorrect statement as the platelets bud off from megakaryocytes and never have a nucleus.

Children with protein-deficient diet are at risk of developing kwashiorkor. Such children have edema, those suffering from marasmus do not.

Cerebral cortex is the portion of the brain that provides remarkable distinctions between humans and other animals. It enables humans not only to receive and interpret all kinds of sensory information, such as color, odor, taste and sound, but also to remember, analyze, interpret, make decisions and perform a host of other higher brain functions.

Parietal cells produce gastric acid, a strong acid, that helps to break down food. These cells produce gastric enzymes, such as pepsinogen and lipase which help us to digest.

It refers to the wall at the back of the pericardial sac. It acts as a collection reservoir to isolate oxygenated haemolymph entering the heart.