which type of tissue connects bones to other bones
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HESI A2

HESI A2 Anatomy and Physiology Practice Test 2023

1. Which type of tissue connects bones to other bones?

Correct answer: B

Rationale: The correct answer is B: Ligaments. Ligaments are tough, flexible connective tissues that connect bones to other bones, providing stability and support to joints. Tendons (choice A) connect muscles to bones, enabling movement. Cartilage (choice C) is a firm, rubbery material that cushions bones at joints. Muscles (choice D) are contractile tissues responsible for movement. Therefore, when looking for the tissue that connects bones to other bones, ligaments are the most appropriate choice.

2. When an individual is under stress, hormones are released. Which of the following is not one of the locations where hormones are released when under stress?

Correct answer: A

Rationale: The parathyroid gland is not a location where hormones are typically released during stress. It primarily regulates calcium levels in the blood through the release of parathyroid hormone (PTH). On the other hand, the adrenal cortex releases hormones like cortisol in response to stress, the posterior pituitary releases oxytocin and antidiuretic hormone, and the hypothalamus plays a crucial role in coordinating stress responses through the release of corticotropin-releasing hormone (CRH). Therefore, the parathyroid gland is the correct answer as it is not directly involved in the stress response pathway.

3. Which is a secondary defense for the body against pathogens?

Correct answer: C

Rationale: Inflammation is a secondary defense mechanism for the body against pathogens. When tissues are injured or infected, inflammation occurs as a protective response involving increased blood flow, white blood cell migration, and tissue repair. This process helps contain and eliminate pathogens, preventing them from spreading further in the body. Tears (Choice A) are a primary defense containing lysozyme and other antimicrobial agents. Urine (Choice B) is typically considered a non-specific defense mechanism due to its flushing action in the urinary tract. Mucus (Choice D) acts as a physical barrier and traps pathogens, also considered a primary defense mechanism.

4. What role does the liver play in metabolism?

Correct answer: B

Rationale: The correct answer is B: 'To detoxify harmful substances.' The liver is primarily responsible for detoxifying harmful substances present in the blood as part of its role in metabolism. While the liver does produce bile to aid in digestion and stores glucose for energy regulation, its main function in metabolism is detoxification. The liver does not produce insulin; insulin is produced by the pancreas to regulate blood sugar levels.

5. What is the primary role of the liver in the body?

Correct answer: B

Rationale: The correct answer is B: Detoxifying harmful substances. While the liver does produce bile for digestion and stores nutrients like glycogen, its primary function is to filter and detoxify blood coming from the digestive tract before passing it to the rest of the body. Therefore, choices A, C, and D are incorrect. Producing insulin is mainly done by the pancreas, digesting food is primarily the role of the stomach and intestines, and storing energy is a function of various organs like muscles and fat cells.

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