Veterinary Support Assistant - Qp4

The purpose of bicarbonate in the jejunum is to maintain the pH. Bicarbonate acts as a buffer, helping to regulate the acidity or alkalinity of the intestinal contents. It neutralizes excess acid produced during digestion, ensuring that the pH remains within the optimal range for proper nutrient absorption and digestion. This is essential for the overall functioning of the digestive system and maintaining a healthy gut environment.

The larynx is a part of the respiratory system and is located in the throat. It serves as the passageway into the lungs, allowing air to enter and exit. Additionally, the larynx contains the vocal cords, which are responsible for producing sound and enabling speech. Therefore, it is correct to say that the larynx forms the opening into the lungs and is also where the voice box is situated.

The small intestines are indeed divided into three parts: the duodenum, jejunum, and ileum. The duodenum is the first part and is responsible for receiving partially digested food from the stomach. The jejunum is the middle part and is where most of the absorption of nutrients takes place. The ileum is the final part and connects to the large intestine. Therefore, the statement is true.

The statement is false because the oestrus is not a tube that runs from the horn of the uterus to the ovary. Oestrus is actually a term used to describe the recurring sexual receptivity and fertility in female mammals. It is a phase in the reproductive cycle, not a physical structure in the reproductive system.

Hydrochloric acid, pepsinogen, and lipase are all gastric secretions. Hydrochloric acid is secreted by the parietal cells in the stomach and helps in the breakdown of food and killing bacteria. Pepsinogen is secreted by the chief cells and is converted into pepsin, an enzyme that breaks down proteins. Lipase is also secreted by the chief cells and helps in the digestion of fats. Glucose, insulin, and ribosomes are not gastric secretions and do not play a direct role in the digestive process.

The correct answer is Ureter. The sentence describes thick-walled, narrow pipes that carry urine from the kidney to the bladder. The ureters are the tubes that perform this function in the urinary system. The urethra, on the other hand, is the tube that carries urine from the bladder out of the body. Urea is a waste product that is excreted in urine, but it is not specifically described in the sentence.

The correct answer is four because humans have four pairs of salivary glands. These glands are responsible for producing saliva, which aids in the digestion of food. Each pair of salivary glands is located in different areas of the mouth and face, including the parotid glands, submandibular glands, sublingual glands, and minor salivary glands.

The statement is false because underneath the tongue, the lingual capillary cannot be found. The lingual capillary is actually located on the surface of the tongue, not underneath it.