Answer the following question given this paragraph: Rotation Rotation can occur within the vertebral column, at a pivot joint, or at a ball-and-socket joint. Rotation of the neck or body is the twisting movement produced by the summation of the small rotational movements available between adjacent vertebrae. At a pivot joint, one bone rotates in relation to another bone. This is a uniaxial joint, and thus rotation is the only motion allowed at a pivot joint. For example, at the atlantoaxial joint, the first cervical (C1) vertebra (atlas) rotates around the dens, the upward projection from the second cervical (C2) vertebra (axis). This allows the head to rotate from side to side as when shaking the head "no. " The proximal radioulnar joint is a pivot joint formed by the head of the radius and its articulation with the ulna. This joint allows for the radius to rotate along its length during pronation and supination movements of the forearm. Rotation can also occur at the ball-and-socket joints of the shoulder and hip. Here, the humerus and femur rotate around their long axis, which moves the anterior surface of the arm or thigh either toward or away from the midline of the body. Movement that brings the anterior surface of the limb toward the midline of the body is called medial (internal) rotation. Conversely, rotation of the limb so that the anterior surface moves away from the midline is lateral (external) rotation (see Figure 9.12f). Be sure to distinguish medial and lateral rotation, which can only occur at the multiaxial shoulder and hip joints, from circumduction, which can occur at either biaxial or multiaxial joints. Q: What is the name of a joint in which one bone rotates in relation to another bone? Choices: - gliding - hinge - ball and socket - pivot joint A:
pivot joint
(Question)
Answer the following question given this paragraph: The number of protons in an atom is called its atomic number. This is also unique for each element. Q: The atomic number is the same as the number of what in an atom? Choices: - neutrons - ions - electrons - protons A:
(Answer)
protons
Ques: Answer the following question given this paragraph: The red blood cells of a person with sickle-cell anemia (left) are long and pointed, rather than straight, like normal cells (right). The abnormal cells cannot carry oxygen properly and can get stuck in capillaries. Q: The abnormal cells cannot carry oxygen properly and can get stuck where? Choices: - muscles - Viens - Arteries - capillaries A:
Ans: capillaries
(Q).
Answer the following question given this paragraph: Figure 7.32 Thoracic Cage The thoracic cage is formed by the (a) sternum and (b) 12 pairs of ribs with their costal cartilages. The ribs are anchored posteriorly to the 12 thoracic vertebrae. The sternum consists of the manubrium, body, and xiphoid process. The ribs are classified as true ribs (17) and false ribs (812). The last two pairs of false ribs are also known as floating ribs (1112). Q: The sternum and 12 pairs of ribs with their costal cartilages make up what? Choices: - chest cage - the core - heart cage - thoracic cage A:
(A).
thoracic cage
Ques:Answer the following question given this paragraph: There are 6 elements in this reaction. All of the monatomic ions have oxidation numbers equal to their charges. Additionally, we can assign an oxidation state of -2 to each oxygen atom and +1 to each hydrogen atom. Now, we just need to assign the oxidation states of manganese in MnO 4 - , nitrogen in the nitrite and nitrate ions, and sulfur in the sulfate ion. These can be determined by choosing a value for which all of the oxidation states in the ion add up to its overall charge. For example, in the nitrite ion:. Q: All of the monatomic ions have oxidation numbers equal to their? Choices: - atomic number - shape - atomic weight - charges A:

Ans:charges
Answer the following question given this paragraph: Electromagnetic waves vary in their frequencies and wavelengths, and waves with higher frequencies have greater energy. The electromagnetic spectrum represents the full range of frequencies of electromagnetic waves. Q: The electromagnetic spectrum represents the full range of frequency of what type of wave? Choices: - transverse wave - mechanical - seismic - electromagnetic A:
electromagnetic