Which hand position describes the anatomical position of a person who is standing erect with feet forward?.

 

Lactic acid is a byproduct of anaerobic respiration, which occurs when there is not enough oxygen for the cells to produce energy. Lactic acid accumulates in the muscles and causes a burning sensation.

Choice A is wrong because creatine-phosphate is a molecule that helps regenerate ATP, the main energy source for cells.

Creatine-phosphate does not cause a burning sensation.

Choice C is wrong because adenosine diphosphate (ADP) is a molecule that is converted into ATP by adding a phosphate group.

ADP does not cause a burning sensation.

Choice D is wrong because creatine-phosphate is a molecule that helps regenerate ATP, the main energy source for cells.

Creatine-phosphate does not cause a burning sensation.

The correct answer is choice D. Water is reabsorbed from the urinary filtrate. This is because ADH (antidiuretic hormone) increases the permeability of the cells in the collecting tubules to water, allowing more water to be reabsorbed back into the bloodstream and reducing urine volume.

Choice A is wrong because large quantities of dilute urine are formed when ADH is low or absent, not when it is secreted.

Choice B is wrong because the tubules become more permeable to water, not imper

This is because the anatomical position is a standard position that serves as a reference for the body. A person is said to be in anatomical position when they are standing erect with their feet together, their hands at their side, with the palms facing forward. Unless otherwise stated, most anatomical descriptions will refer to a person when in anatomical position.

Choice A is wrong because palms of the hand facing medially means that the palms are facing toward the midline of the body, which is not the case in anatomical position.

Choice B is wrong because palms of the hand facing laterally means that the palms are facing away from the midline of the body, which is also not the case in anatomical position.

Choice D is wrong because palms of the hands facing posteriorly means that the palms are facing toward the back of the body, which is opposite to the anatomical position.

The urethra is the tube that transports both semen and urine out of the body through the penis. It is part of both the male reproductive system and the urinary system.

Choice A is wrong because the epididymis is a coiled tube that stores and transports sperm from the testes to the vas deferens.

It is only part of the male reproductive system.

Choice C is wrong because the testes are the male gonads that produce sperm and testosterone.

They are also only part of the male reproductive system.

Choice D is wrong because the ureter is a tube that carries urine from the kidney to the bladder.

It is only part of the urinary system.