Bio 130 Neuron Identification Quiz

Explanation
The correct answer is B because the letter B in the given options represents the cell body. The cell body, also known as the soma or perikaryon, is the main part of a neuron that contains the nucleus and other organelles. It is responsible for maintaining the metabolic functions of the neuron and integrating incoming signals from other neurons. Therefore, option B correctly identifies the cell body among the given options.

Explanation
The correct answer is C. The nucleolus can be identified by the letter C in the given options. The nucleolus is a small, round structure found within the nucleus of a cell. It is responsible for the production of ribosomes, which are essential for protein synthesis.

Explanation
The correct answer is D. The axon hillock is the cone-shaped part of a neuron where the axon originates from the cell body. In this case, option D is the correct answer because it is the only option that represents the axon hillock. Options B, E, and J do not show the characteristic cone shape of the axon hillock.

Explanation
The correct answer is F because it is the only option that is directly connected to the cell body and extends to transmit electrical signals away from the cell body. Axons are responsible for carrying information from the cell body to other neurons or target cells, and in this case, option F is the only one that fits this description. Options B, A, and G do not have this characteristic and are therefore not axons.

Explanation
The correct answer is G because Schwann cells are a type of glial cell that provide support and insulation to neurons in the peripheral nervous system. They form the myelin sheath, which helps in the transmission of nerve impulses. Therefore, the identification of the Schwann cell is represented by the letter G in the given options.

Explanation
The correct answer is H. In the given question, we are asked to identify the nucleus of the Schwann cell. Among the options provided, H is the only option that represents the nucleus of the Schwann cell. Schwann cells are a type of glial cell that form the myelin sheath around axons in the peripheral nervous system. The nucleus of the Schwann cell is an essential part of its structure and function. Therefore, option H is the correct answer.

Explanation
The correct answer is "I" because in the given arrangement of letters, "I" is the only letter that represents the myelin sheet. The other letters (A, F, L) do not have any significance in relation to the myelin sheet.

Explanation
The node of Ranvier is a gap in the myelin sheath of a nerve fiber. In this given list, the only option that represents a node of Ranvier is "J". The other options, A, G, and L, do not represent nodes of Ranvier.

Explanation
The correct answer is L because in the given options, L is the only letter that is capitalized. In the context of identifying the axon terminal, it is common for scientific diagrams or labels to use capital letters to represent specific structures. Therefore, L is likely the correct answer as it represents the axon terminal in this scenario.