Anatomy and Physiology

Anatomy and Physiology Related

Review Anatomy and Physiology related questions and content

All actions of the nervous system depend on the transmission of nerve impulses over which of the following?

  • A. Neuroglia
  • B. Efferent pathways
  • C. Afferent pathways
  • D. Neurons
Correct Answer: D

Rationale: Nerve impulses are transmitted in the nervous system through neurons. Neurons are specialized cells responsible for transmitting electrical and chemical signals, known as nerve impulses. Neuroglia are supportive cells in the nervous system, efferent pathways carry signals away from the central nervous system, and afferent pathways carry signals towards the central nervous system. Therefore, neurons play a crucial role in transmitting nerve impulses, making them the correct answer.

You may also like to solve these questions

Where does digestion begin in the digestive system?

  • A. Esophagus.
  • B. Small intestine.
  • C. Stomach.
  • D. Oral cavity.
Correct Answer: D

Rationale:

A tissue examined under the microscope exhibits the following characteristics: cells found on the internal surface of the stomach, no extracellular matrix, tall and thin cells, and no blood vessels in the tissue. What type of tissue is this?

  • A. Epithelial
  • B. Connective
  • C. Muscle
  • D. Cartilage
Correct Answer: A

Rationale: The correct answer is A: Epithelial. Epithelial tissue is characterized by cells tightly packed together that form a protective barrier on internal and external body surfaces. The description in the question matches the characteristics of epithelial tissue found lining the internal surface of organs like the stomach. This type of tissue lacks blood vessels and typically does not contain an extracellular matrix, which is a defining feature of connective tissue. Muscle tissue is composed of cells capable of contraction and relaxation, while cartilage is a type of connective tissue consisting of specialized cells embedded in a matrix.

When drawing blood from the antecubital region, which vessel is used?

  • A. Radial artery.
  • B. Brachial Vein
  • C. Ulnar Vein
  • D. Axillary artery
Correct Answer: B

Rationale:

Which structure is located on the sternum?

  • A. Xiphoid process
  • B. Sesamoid bone
  • C. Hyoid bone
  • D. Ossified process
Correct Answer: A

Rationale: The xiphoid process is the structure located at the bottom of the sternum. It is a small cartilaginous process that ossifies with age. The sesamoid bone is a small bone embedded within a tendon, not typically found on the sternum. The hyoid bone is a U-shaped bone located in the neck, not on the sternum. 'Ossified' refers to a structure that has become hardened like bone, but it is not a specific structure located on the sternum.

What are the connective tissue cells found in nerve tissue called?

  • A. Osteoblasts
  • B. Neuroglia
  • C. Osteocytes
  • D. Arterioles
Correct Answer: B

Rationale: Within nerve tissue, in addition to neurons responsible for transmitting nerve impulses, there are connective tissue cells known as neuroglia. Neuroglia play a vital role in providing support, insulation, and protection for neurons within the nervous system. Osteoblasts are involved in bone formation, osteocytes are mature bone cells, and arterioles are small arteries responsible for regulating blood flow, not found in nerve tissue.

Copyright © 2025 Nokea. All rights reserved.