HESI A2 Anatomy and Physiology Quizlet

Correct Answer: B

Rationale: The correct answer is B: Parietal lobe. This brain region is responsible for processing sensory information such as touch, temperature, and pain. It integrates sensory inputs to create a coherent perception of the environment. The frontal lobe (A) is involved in higher cognitive functions like decision-making. The occipital lobe (C) processes visual information, and the temporal lobe (D) is responsible for auditory processing and memory. Therefore, the parietal lobe is the correct choice for processing sensory information.

Correct Answer: B

Rationale: The correct answer is B: Urethra. The urethra is a structure that is part of both the male reproductive system and the urinary system. It serves as a passageway for both urine and semen to exit the body. The bladder (A) is only part of the urinary system, storing urine. The prostate (C) and seminal vesicle (D) are structures specific to the male reproductive system, producing components of semen. Therefore, the urethra is the only structure that is shared by both systems.

Correct Answer: C

Rationale: The main component of the cell membrane is lipids, specifically phospholipids. They form a lipid bilayer that provides structure and acts as a barrier to regulate what enters and exits the cell. Proteins are also important in the cell membrane for various functions, but they are not the main component. Carbohydrates are found on the surface of the cell membrane for cell recognition and communication, not as the main component. Nucleic acids are not found in the cell membrane, as they are responsible for genetic information storage and protein synthesis inside the cell.

Correct Answer: B

Rationale: The correct answer is B: Pivot joint. Pivot joints allow for rotational movement around a single axis. This type of joint is found in the neck, allowing the head to rotate side to side. Hinge joints (choice A) allow movement in one plane like the elbow. Ball and socket joints (choice C) allow for a wide range of movement in multiple directions like the hip and shoulder. Saddle joints (choice D) allow for movement in two axes like the thumb. Therefore, the correct answer is pivot joint as it specifically allows for rotational movement around a single axis.

Correct Answer: C

Rationale: The correct answer is C: Pancreas. The pancreas is responsible for producing insulin, a hormone that regulates blood sugar levels. Insulin is produced in the beta cells of the pancreas and plays a crucial role in glucose metabolism. The other choices, A: Thyroid gland, B: Pituitary gland, and D: Adrenal gland, are not involved in the production of insulin. The thyroid gland produces hormones that regulate metabolism, the pituitary gland controls hormone production in other glands, and the adrenal gland produces hormones like cortisol and adrenaline. Therefore, the pancreas is the correct answer for the production of insulin.