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Nursing Elites

ATI TEAS 7

Anatomy

1. Which type of joint allows for the most movement?

Correct answer: A

Rationale: The correct answer is A: Ball-and-socket joint (shoulder). Ball-and-socket joints allow for the most movement in all directions, such as flexion, extension, abduction, adduction, and rotation. The shoulder joint is a prime example, as it enables a wide range of motion, allowing the arm to move in multiple planes. Hinge joints, like the elbow, primarily allow movement in one direction (flexion and extension). Fibrocartilaginous joints, such as those in the wrists, have limited movement due to the presence of cartilage between the bones. Suture joints, found in the skull, are immovable joints that provide structural support rather than movement. Therefore, ball-and-socket joints like the shoulder joint offer the greatest range of motion among the options provided.

2. An element with atomic number 26 and mass number 56 is most likely to be:

Correct answer: A

Rationale: Iron (Fe) - Fe-56 has 26 protons and aligns with the given atomic number and mass number.

3. The ball-and-socket joint, which allows for wide range of motion, is found in the connection between:

Correct answer: A

Rationale: The correct answer is A: 'Upper arm and shoulder blade (scapula).' The ball-and-socket joint is found in the connection between the humerus (upper arm bone) and the scapula (shoulder blade). This joint allows for a wide range of motion, including flexion, extension, abduction, adduction, and rotation. The collarbone (clavicle) and breastbone (sternum) are connected by a cartilaginous joint, not a ball-and-socket joint. Two vertebrae in the spine are connected by facet joints, and the ribs and sternum are connected by cartilaginous joints and the costovertebral joints. Therefore, the ball-and-socket joint is uniquely found in the connection between the upper arm and the shoulder blade, allowing for the shoulder's impressive range of motion.

4. What type of nutrients require minimal digestion before absorption?

Correct answer: D

Rationale: Rationale: A) Carbohydrates: Carbohydrates require digestion by enzymes in the mouth, stomach, and small intestine before they can be broken down into simple sugars for absorption. B) Proteins: Proteins need to be broken down into amino acids by stomach acid and digestive enzymes in the stomach and small intestine before they can be absorbed. C) Fats: Fats require bile from the gallbladder to emulsify them into smaller droplets for enzymes to break them down into fatty acids and glycerol for absorption. D) Vitamins: Vitamins are organic compounds that are already in a form that can be readily absorbed by the body without extensive digestion. They are absorbed directly into the bloodstream from the small intestine and do not require significant breakdown before absorption.

5. What is the difference between the atomic number and the mass number of an atom?

Correct answer: C

Rationale: The atomic number and the mass number are two fundamental properties of an atom. They provide important information about the identity and structure of an element.

6. What kind of lens focuses parallel light rays to a single point?

Correct answer: B

Rationale: Convex lenses (converging lenses) bend incoming light rays inwards, focusing them to a point called the focal point.

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