which vitamin deficiency can lead to kidney stones
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ATI TEAS 7

ATI TEAS 7 science review

1. Which vitamin deficiency can lead to kidney stones?

Correct answer: C

Rationale: The correct answer is Vitamin D. Vitamin D deficiency can lead to kidney stones because Vitamin D helps regulate calcium levels in the body. Low levels of Vitamin D can result in increased calcium absorption from the intestines, leading to higher levels of calcium in the urine, which can form kidney stones. Choices A, B, and D are incorrect as deficiencies in these vitamins are not directly associated with kidney stone formation.

2. Which part of the neuron insulates and speeds up the transmission of nerve impulses along the axon?

Correct answer: B

Rationale: The myelin sheath is a fatty layer that surrounds the axon of a neuron, providing insulation and speeding up the transmission of nerve impulses. This insulation helps prevent the loss of electrical signals as they travel along the axon, allowing for faster and more efficient communication within the nervous system. Dendrites are branching extensions of a neuron that receive signals from other neurons, the synapse is the junction between two neurons where communication occurs, and the cell body contains the nucleus and organelles of the neuron, but none of these structures provide insulation for the transmission of nerve impulses along the axon.

3. Which hormone, produced by the pancreas, acts in opposition to insulin by increasing blood sugar levels?

Correct answer: B

Rationale: Glucagon is the correct answer. Produced by the pancreas, glucagon acts in opposition to insulin by increasing blood sugar levels. Glucagon promotes the breakdown of glycogen into glucose in the liver, leading to the release of glucose into the bloodstream. Insulin, on the other hand, lowers blood sugar levels by facilitating the uptake of glucose into cells. Cortisol is a hormone produced by the adrenal glands, not the pancreas, and is involved in stress response and metabolism. Thyroxine is a hormone produced by the thyroid gland and is primarily responsible for regulating metabolism.

4. What is the name for the flexible connection between bones at the wrist or ankle?

Correct answer: A

Rationale: The correct answer is A: Ligament. Ligaments are tough bands of tissue that connect bones to other bones at joints, providing stability and support. In the case of the wrist or ankle, ligaments play a crucial role in maintaining the structural integrity and allowing for proper movement of these joints. Tendons (option B) connect muscles to bones, not bones to bones. Fascia (option C) is a connective tissue that surrounds muscles and other structures, not connecting bones at joints. A synovial joint (option D) is a type of joint that allows for movement between bones, but it is not the flexible connection between bones at the wrist or ankle.

5. Which of the following is NOT a type of epithelium?

Correct answer: D

Rationale: The correct answer is D, Pseudostratified columnar. Pseudostratified columnar epithelium is not a type of epithelium. It is a specialized form of simple columnar epithelium. Stratified squamous, simple cuboidal, and stratified columnar are all types of epithelial tissues found in the human body. Stratified squamous epithelium is found in the skin, mouth, and esophagus; simple cuboidal epithelium lines kidney tubules and glands; stratified columnar epithelium is present in parts of the respiratory tract and male urethra.

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