A&P 1 Chapters 1-4 Questions and
Answers | Latest Update | 2024/2025 |
Graded A+
What is the function of the myelin sheath in the nervous system?
The myelin sheath insulates axons, speeding up the transmission of electrical impulses
between neurons and ensuring efficient communication w...
A&P 1 Chapters 1-4 Questions and
Answers | Latest Update | 2024/2025 |
Graded A+
What is the function of the myelin sheath in the nervous system?
✔✔ The myelin sheath insulates axons, speeding up the transmission of electrical impulses
between neurons and ensuring efficient communication within the nervous system.
How does the body regulate blood glucose levels?
✔✔ Blood glucose levels are regulated by hormones such as insulin and glucagon, which are
secreted by the pancreas to maintain homeostasis.
What are the components of the axial skeleton and their primary functions?
✔✔ The axial skeleton includes the skull, vertebral column, and rib cage, providing support and
protection for the brain, spinal cord, and thoracic organs.
How does the process of meiosis differ from mitosis?
1
, ✔✔ Meiosis results in the production of four genetically unique gametes with half the number of
chromosomes, while mitosis produces two genetically identical daughter cells with the same
number of chromosomes as the parent cell.
What role do platelets play in the blood clotting process?
✔✔ Platelets adhere to damaged blood vessel sites, aggregate, and release chemicals that
facilitate the clotting process to prevent excessive bleeding.
Explain the process of protein synthesis in cells.
✔✔ Protein synthesis involves transcription of DNA into mRNA in the nucleus, followed by
translation of mRNA into amino acid sequences at the ribosomes in the cytoplasm.
What is the role of the cerebellum in motor control?
✔✔ The cerebellum coordinates voluntary movements, maintains balance, and fine-tunes motor
skills by integrating sensory input and motor commands.
2
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