Qnt 561 Week 4 Study Guide
Week 4 Chapter Questions Assignment
Instructions: Type your answers IN BOLD, following the selected Checkpoint questions.
Week 1
Chapter 1
1. What is the basic difference between anatomy and physiology? (p. 2)
ANSWER: Anatomy is the study of body structure and Physiology is the study of body function.
2. Define each of the following terms: atom, molecule, cell, tissue, organ, system, and organism. (p. 6) ANSWER: atoms, the smallest units of matter that participate in chemical reactions molecules, two or more atoms joined together. The cell is the basic, living, structural and functional unit of the body. Tissues are groups of cells and the materials surrounding them that work together to perform a particular function. …show more content…
What types of mechanical stress may be used to strengthen bone tissue? ANSWER: Basically it's just exercise. Moderate weight lifting or walking stresses bones, which help build and retain bone mass. If bones are not being used, then they will lose their mass.
27. How does aging affect the brittleness of bone and the loss of bone mass?
ANSWER: Bone brittleness results from a decrease in the rate of protein synthesis and in the production of human growth hormone, which diminishes the production of the collagen fibers that give bone its strength and flexibility. As a result, inorganic minerals gradually constitute a greater proportion of the bone extracellular matrix. Loss of bone mass results from demineralization and usually begins after age 30 in females, accelerates greatly around age 45 as levels of estrogens decrease, and continues until as much as 30% of the calcium in bones is lost by age 70
Chapter 7
28. What factors determine movement at joints?
ANSWER: (1) the shape of the articulating bones, (2) the flexibility (tension or tautness) of the ligaments that bind the bones together, and (3) the tension of associated muscles and
Instructions: Type your answers IN BOLD, following the selected Checkpoint questions.
Week 1
Chapter 1
1. What is the basic difference between anatomy and physiology? (p. 2)
ANSWER: Anatomy is the study of body structure and Physiology is the study of body function.
2. Define each of the following terms: atom, molecule, cell, tissue, organ, system, and organism. (p. 6) ANSWER: atoms, the smallest units of matter that participate in chemical reactions molecules, two or more atoms joined together. The cell is the basic, living, structural and functional unit of the body. Tissues are groups of cells and the materials surrounding them that work together to perform a particular function. …show more content…
What types of mechanical stress may be used to strengthen bone tissue? ANSWER: Basically it's just exercise. Moderate weight lifting or walking stresses bones, which help build and retain bone mass. If bones are not being used, then they will lose their mass.
27. How does aging affect the brittleness of bone and the loss of bone mass?
ANSWER: Bone brittleness results from a decrease in the rate of protein synthesis and in the production of human growth hormone, which diminishes the production of the collagen fibers that give bone its strength and flexibility. As a result, inorganic minerals gradually constitute a greater proportion of the bone extracellular matrix. Loss of bone mass results from demineralization and usually begins after age 30 in females, accelerates greatly around age 45 as levels of estrogens decrease, and continues until as much as 30% of the calcium in bones is lost by age 70
Chapter 7
28. What factors determine movement at joints?
ANSWER: (1) the shape of the articulating bones, (2) the flexibility (tension or tautness) of the ligaments that bind the bones together, and (3) the tension of associated muscles and