Anatomy and Physiology

Anatomy and Physiology Related

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Which of the following are functions of the skeletal system? (Select one that does not apply.)

  • A. Support the body
  • B. Hemopoiesis
  • C. Conduct impulses
  • D. Provide protection
Correct Answer: C

Rationale: The correct answer is C, 'Conduct impulses.' The skeletal system's primary functions include supporting the body, hemopoiesis (blood cell production), and providing protection to internal organs. Conducting impulses is a function of the nervous system, not the skeletal system. The skeletal system serves as the framework for the body, enabling movement, protecting vital organs, producing blood cells, storing minerals, and supporting the overall structure of the body.

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What are macromolecules that carry the genetic code made of?

  • A. Nucleotides
  • B. Chromosomes
  • C. DNA
  • D. RNA
Correct Answer: A

Rationale: Macromolecules carrying the genetic code are made of nucleotides. Nucleotides serve as the building blocks of DNA and RNA, which are responsible for storing and transmitting genetic information. While chromosomes are composed of DNA and proteins, they do not directly carry the genetic code. DNA and RNA are indeed composed of nucleotides, but they are not the carriers of the genetic code themselves.

A professional boxer gets punched in the nose resulting in a deviated septum. Which bone is most likely to be involved?

  • A. Sella turcica.
  • B. Vomer
  • C. Calcaneous.
  • D. Malleus.
Correct Answer: B

Rationale:

A client has a large pituitary tumor. The nurse knows that this tumor exists in which part of the body?

  • A. Neck
  • B. Head.
  • C. Abdomen.
  • D. Trunk.
Correct Answer: B

Rationale:

Which of the following hormones decreases the concentration of blood glucose?

  • A. insulin
  • B. glucagon
  • C. growth hormone
  • D. glucocorticoids
Correct Answer: A

Rationale: Insulin is the hormone responsible for decreasing the concentration of blood glucose levels by promoting the uptake and storage of glucose in cells. When blood glucose levels rise, insulin is released to help cells absorb excess glucose, thereby lowering its concentration in the bloodstream. Glucagon, growth hormone, and glucocorticoids, in contrast, all play roles in increasing blood glucose levels through different mechanisms.

Which type of cell division occurs in the gonads?

  • A. Mitosis
  • B. Meiosis
  • C. Binary fission
  • D. Asexual division
Correct Answer: B

Rationale: Meiosis is the type of cell division that occurs in the gonads. During meiosis, cells undergo two rounds of division resulting in the formation of gametes (sperm and egg cells) with half the number of chromosomes. This process is vital for sexual reproduction and genetic diversity.

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