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Nursing Elites

ATI TEAS 7

Anatomy

1. The framework of bones, cartilage, ligaments, and tendons that provides structure, support, and facilitates movement is the:

Correct answer: B

Rationale: The correct answer is B: Skeletal system. The skeletal system is composed of bones, cartilage, ligaments, and tendons that work together to provide structure, support, and facilitate movement in the body. The bones serve as the framework that supports and protects the body's organs, while cartilage cushions the joints. Ligaments connect bones to each other, and tendons connect muscles to bones, allowing for movement. The muscular system (choice A) consists of muscles that work with the skeletal system to produce movement. The nervous system (choice C) controls and coordinates bodily functions through the brain, spinal cord, and nerves. The endocrine system (choice D) regulates various bodily functions through the release of hormones. Therefore, the skeletal system is the correct answer as it specifically refers to the framework of bones, cartilage, ligaments, and tendons that support and enable movement in the body.

2. Which condition involves an overactive immune system attacking healthy tissues, leading to inflammation and damage?

Correct answer: B

Rationale: The correct answer is B: Autoimmune disease. Autoimmune diseases occur when the immune system mistakenly attacks healthy cells and tissues in the body, leading to inflammation and damage. Immunodeficiency (option A) is the opposite, where the immune system is weakened or not functioning properly. Allergies (option C) involve the immune system overreacting to harmless substances. Cancer (option D) is characterized by uncontrolled cell growth, not by the immune system attacking healthy tissues.

3. The external body covering, providing protection and contributing to temperature regulation, is composed of:

Correct answer: B

Rationale: The correct answer is B: Epithelial tissue (skin). The skin is the external body covering that provides protection against physical, chemical, and biological factors. It also plays a crucial role in regulating body temperature by controlling heat exchange with the environment through processes like sweating and blood vessel constriction or dilation. Muscle tissue (option A) is responsible for movement, bone marrow (option C) produces blood cells, and cartilage (option D) is a type of connective tissue found in joints. Therefore, epithelial tissue (skin) is the most suitable option as it directly addresses the functions of the external body covering.

4. Nuclear binding energy represents the energy required to:

Correct answer: B

Rationale: Nuclear binding energy is the energy required to hold the protons and neutrons within a nucleus together. This energy is necessary to overcome the electrostatic repulsion between positively charged protons in the nucleus. Option A, separating an electron from its atom, is related to ionization energy, not nuclear binding energy. Option C, causing nuclear fission, involves splitting a heavy nucleus into smaller nuclei, releasing energy but not directly related to the binding energy. Option D, inducing nuclear fusion, involves combining two light nuclei to form a heavier nucleus, also not directly related to the energy required to hold protons and neutrons together within a nucleus.

5. What is the name of the structure that packages DNA in eukaryotic cells?

Correct answer: A

Rationale: Rationale: - A nucleosome is the basic structural unit of DNA packaging in eukaryotic cells. It consists of DNA wrapped around a core of histone proteins. - Chromatin refers to the complex of DNA and proteins found in the nucleus of a eukaryotic cell, including nucleosomes. - Histones are the proteins around which DNA is wrapped to form nucleosomes. - Centromere is a region of a chromosome where the two sister chromatids are joined and to which spindle fibers attach during cell division.

6. What is the name for the smallest amount of an element that can exist independently and retain its chemical properties?

Correct answer: A

Rationale: An atom is the fundamental building block of an element, consisting of a nucleus and electrons.

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